Old 01-16-2017, 09:23 PM #1
MrMcChicken's Avatar
Class 2 Laser
 
Join Date: Mar 2011
Location: Germany
Posts: 274
Rep Power: 3046
MrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond repute
MrMcChicken MrMcChicken is online now
Class 2 Laser
MrMcChicken's Avatar
 
Join Date: Mar 2011
Location: Germany
Posts: 274
Rep Power: 3046
MrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond repute
Default Why and when do laser diodes shift in wavelegth?

Hello everyone, there is a question I have and I hope somebody here can help me out.
Does the wavelength of a laser diode depend on the current it is driven or on the temperature it heats up during high currents? If it would depend mostly on a high current it would be pretty neat, because I would really like to have a 470nm laser but DPSS are quite expensive. So I could just pulse it with high power pulses to get the shift in wavelength but don't have to struggle with extreme high power CW output. (well, for me everything higher than 100mW is already high power).

Greetings, MrMcChicken


__________________
What I have to say first: Sorry for all mistakes I make. But I hope everyone understands my english, thank's
Lasers:
RGB Laser *click me HARD*
<1mW 337,1nm TEA-laser HOMEMADE!*click me HARD*
150mW 405nm RIP HOMEMADE!
500mW 405nm pen HOMEMADE!*click me HARD*
1000mW 445nm 3D Printed Host Build HOMEMADE! *click me HARD*
1000mW 447nm Dragonlasers Spartan
300mW 532nm Skylaser 517mW peak H532L-S300B skylaser
50mW 589nm Dragonlasers Spartan Variable Power Mod *click me HARD*

500mW 635nm HOMEMADE!*click me HARD*

My first tesla coil! : *click me HARD*
My first BIG one! : *click me HARDER*


Want to make a simple diffraction grating?
http://laserpointerforums.com/f49/di...tml#post952546
MrMcChicken is online now   Reply With Quote


















Old 01-16-2017, 10:00 PM #2
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,292
Rep Power: 199036
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,292
Rep Power: 199036
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

Higher current translates to a higher wavelength. Higher temperature also translates to a higher wavelength. To what extent depends on the diode. A cold violet on low current for example could be 403nm. The same violet might be upwards of 420nm when warm and with high current. With blues, violets, and greens, the current will have a greater effect on wavelength.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 01-17-2017, 10:24 AM #3
CurtisOliver's Avatar
Class 3B Laser
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 4,398
Rep Power: 1002677
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
CurtisOliver CurtisOliver is online now
Class 3B Laser
CurtisOliver's Avatar
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 4,398
Rep Power: 1002677
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

Also pushing this to the extreme. Check out this video from a member here. I don't recommend actually doing this if you happen to have some liquid nitrogen lying around, but it does prove the point on temperature. https://www.youtube.com/watch?v=5PquJdIK_z8
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta






Useful Links:
Wavelength to RGB Converter

Last edited by CurtisOliver; 01-17-2017 at 10:25 AM.
CurtisOliver is online now   Reply With Quote
Old 01-17-2017, 11:53 AM #4
BobMc's Avatar
Class 3B Laser
 
Join Date: Apr 2016
Location: Lancaster ca
Posts: 3,393
Rep Power: 667014
BobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond repute
BobMc BobMc is online now
Class 3B Laser
BobMc's Avatar
 
Join Date: Apr 2016
Location: Lancaster ca
Posts: 3,393
Rep Power: 667014
BobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

That was a really cool video, thanks for sharing. Very informative.
__________________
BobMc's Laser Museum;
http://laserpointerforums.com/f76/bo...l?nojs=1#links


~ Till righteousness is sought after for it's own sake, mankind will not know what makes for peace. ~
BobMc is online now   Reply With Quote
Old 01-17-2017, 12:00 PM #5
CurtisOliver's Avatar
Class 3B Laser
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 4,398
Rep Power: 1002677
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
CurtisOliver CurtisOliver is online now
Class 3B Laser
CurtisOliver's Avatar
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 4,398
Rep Power: 1002677
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

No problem. Thought it might help.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta






Useful Links:
Wavelength to RGB Converter
CurtisOliver is online now   Reply With Quote
Old 01-17-2017, 09:51 PM #6
Rivem's Avatar
Class 3R Laser
 
Join Date: Feb 2016
Location: Southern Colorado, USA
Posts: 1,245
Rep Power: 282405
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Rivem Rivem is offline
Class 3R Laser
Rivem's Avatar
 
Join Date: Feb 2016
Location: Southern Colorado, USA
Posts: 1,245
Rep Power: 282405
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

Just to add, there are two major mechanisms that influence the wavelength shift in laser diodes:
  • Semiconductor bandgap changes- Energy difference that electrons experience across the semiconductor becomes different.
  • Lasing Medium/Cavity Changes- The geometry of the laser itself can change with temperature and shift wavelength.

Of course the average operating temperature and load current are very closely related.
__________________
Now in the Member Collections Section: Rivem's Collection.

Laser Sticker production will resume Feb 2018! Thanks for all the orders folks

Want to join the chatroom? See this thread: Laser Discord Chat Invitation
Rivem is offline   Reply With Quote
Old 01-18-2017, 07:04 AM #7
MrMcChicken's Avatar
Class 2 Laser
 
Join Date: Mar 2011
Location: Germany
Posts: 274
Rep Power: 3046
MrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond repute
MrMcChicken MrMcChicken is online now
Class 2 Laser
MrMcChicken's Avatar
 
Join Date: Mar 2011
Location: Germany
Posts: 274
Rep Power: 3046
MrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond reputeMrMcChicken has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

Thanks for sharing this video. This looks pretty amazing. However it doesn't seem to be a very practical method. Sadly most diodes don't shift that much. Has anybody did some tests of different diodes? I have seen some threads where single diodes were tested and got some information on DTRs site.

Greetings, MrMcChicken
__________________
What I have to say first: Sorry for all mistakes I make. But I hope everyone understands my english, thank's
Lasers:
RGB Laser *click me HARD*
<1mW 337,1nm TEA-laser HOMEMADE!*click me HARD*
150mW 405nm RIP HOMEMADE!
500mW 405nm pen HOMEMADE!*click me HARD*
1000mW 445nm 3D Printed Host Build HOMEMADE! *click me HARD*
1000mW 447nm Dragonlasers Spartan
300mW 532nm Skylaser 517mW peak H532L-S300B skylaser
50mW 589nm Dragonlasers Spartan Variable Power Mod *click me HARD*

500mW 635nm HOMEMADE!*click me HARD*

My first tesla coil! : *click me HARD*
My first BIG one! : *click me HARDER*


Want to make a simple diffraction grating?
http://laserpointerforums.com/f49/di...tml#post952546
MrMcChicken is online now   Reply With Quote
Old 01-18-2017, 08:27 AM #8
CurtisOliver's Avatar
Class 3B Laser
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 4,398
Rep Power: 1002677
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
CurtisOliver CurtisOliver is online now
Class 3B Laser
CurtisOliver's Avatar
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 4,398
Rep Power: 1002677
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

Quote:
Originally Posted by MrMcChicken View Post
Thanks for sharing this video. This looks pretty amazing. However it doesn't seem to be a very practical method. Sadly most diodes don't shift that much. Has anybody did some tests of different diodes? I have seen some threads where single diodes were tested and got some information on DTRs site.

Greetings, MrMcChicken
Lol, I wasn't proposing it to be a practical method. Just showing you the extremes.
Your right most diodes under normal operating conditions will only shift a few nm either way. I contacted Styropyro before on this matter, and the 650/635's tend to shift more and don't thermal damage as easily as the 520's. I don't know about the 445/450/465's etc. But I take it that they will behave similar to the 520's as it seems that InGaN doesn't like thermal tweaking as much AlGaInP.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta






Useful Links:
Wavelength to RGB Converter
CurtisOliver is online now   Reply With Quote
Old 01-18-2017, 03:08 PM #9
Radim's Avatar
Class 3R Laser
 
Join Date: Aug 2016
Location: European Union
Posts: 1,162
Rep Power: 208573
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Radim Radim is online now
Class 3R Laser
Radim's Avatar
 
Join Date: Aug 2016
Location: European Union
Posts: 1,162
Rep Power: 208573
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

Quote:
Originally Posted by CurtisOliver View Post
Also pushing this to the extreme. Check out this video from a member here. I don't recommend actually doing this if you happen to have some liquid nitrogen lying around, but it does prove the point on temperature. https://www.youtube.com/watch?v=5PquJdIK_z8
Damn it! Why I spent my money for expensive 589 nm.

Thanks for sharing this cool video.
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."
"If you do not feel and experience the magic, you cannot become the master of wizardry."


Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro (Review)
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

532 nm | 1.4+ W | Optotronics RPL-II
589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some laser pointers)

Wishlisted:
Sanwu's RGB Portable (being developed) - LPF post linked.

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

I'm back! And with question: Is this hologram? What is it? My mind is bent...

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.
Radim is online now   Reply With Quote
Old 01-18-2017, 03:15 PM #10
CurtisOliver's Avatar
Class 3B Laser
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 4,398
Rep Power: 1002677
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
CurtisOliver CurtisOliver is online now
Class 3B Laser
CurtisOliver's Avatar
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 4,398
Rep Power: 1002677
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

Lol. Out of these lasers, which one would you choose?
You could have a wonderful liquid nitrogen cooled 580nm diode that you would have to handle with gloves.
Or a 589 that you can use normally.
9nm makes a difference you know.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta






Useful Links:
Wavelength to RGB Converter
CurtisOliver is online now   Reply With Quote
Old 01-18-2017, 08:42 PM #11
GSS GSS is online now
Class 3B Laser
 
Join Date: Apr 2015
Location: Fall river MA
Posts: 2,895
Rep Power: 873002
GSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond repute
GSS GSS is online now
Class 3B Laser
 
Join Date: Apr 2015
Location: Fall river MA
Posts: 2,895
Rep Power: 873002
GSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

Quote:
Originally Posted by MrMcChicken View Post
Thanks for sharing this video. This looks pretty amazing. However it doesn't seem to be a very practical method. Sadly most diodes don't shift that much. Has anybody did some tests of different diodes? I have seen some threads where single diodes were tested and got some information on DTRs site.

Greetings, MrMcChicken
Pman, pushed a few "costly" 07 diodes hard just to see and got some good results kinda recently. None seemed to fry out.
I'm not to sure on what thread he posted it?
__________________
"Diamond Select" TOS Phaser 532 80mw
"Diamond Select" TOS Phaser 532 150mw
"Rubie's" TOS Phaser M02 520 1.8A
"Rubie's" TOS Phaser A140 1.4A
"Rubie"s" TOS Phaser A140 1.1A "proto focus nozzle(Lifetime)"
"Rubie's" TOS Phaser M140 1.8A

Last edited by GSS; 01-18-2017 at 08:47 PM.
GSS is online now   Reply With Quote
Old 01-18-2017, 10:07 PM #12
Radim's Avatar
Class 3R Laser
 
Join Date: Aug 2016
Location: European Union
Posts: 1,162
Rep Power: 208573
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Radim Radim is online now
Class 3R Laser
Radim's Avatar
 
Join Date: Aug 2016
Location: European Union
Posts: 1,162
Rep Power: 208573
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Default Re: Why and when do laser diodes shift in wavelegth?

Quote:
Originally Posted by CurtisOliver View Post
Lol. Out of these lasers, which one would you choose?
You could have a wonderful liquid nitrogen cooled 580nm diode that you would have to handle with gloves.
Or a 589 that you can use normally.
9nm makes a difference you know.
I pesonally love complexity - I would go for DPSS laser, where the process of creation of output radiation is just amazing.
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."
"If you do not feel and experience the magic, you cannot become the master of wizardry."


Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro (Review)
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

532 nm | 1.4+ W | Optotronics RPL-II
589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some laser pointers)

Wishlisted:
Sanwu's RGB Portable (being developed) - LPF post linked.

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

I'm back! And with question: Is this hologram? What is it? My mind is bent...

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.
Radim is online now   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 07:39 PM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC