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Old 01-18-2017, 04:46 PM #2753
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

One more: 1.5 watt labby putting out 1800mw @ 532nm. No bids yet:

532 nm 1.5W laser | eBay







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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

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Old 01-18-2017, 06:03 PM #2754
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by Alaskan;EDIT: back to add this el cheapo laser pointer.. Maybe not very substantial, but it looks good in this photo:

[url=http://www.ebay.com/itm/500-1500-Miles-5mw-532nm-Green-Laser-Pointer-Pen-Powerful-Laser-Rod-Laser-Sword-/161786805927
500-1500 Miles 5mw 532nm Green Laser Pointer Pen Powerful Laser Rod Laser Sword | eBay[/url]


I got one that looks the same from fast Tech, tops out at 70mw.
The star caps are nice so it was worth the $
Ed
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M who knows 405nm 15mw
Qtech 405nm 95mw with Pmans focus mod
Ebay 405nm 135mw and 12mw pens
405nm Pman special 35mw made from parts he sent me.
Fast Tech 405nm 107mw
Rick Trent 445nm 2.7w Grey host
1st build 450nm PLT450B C3/ YZ-C55 145mw
NDB7675 462nm 1.8 w
515nm 130mw NDG4216
Pman special 532nm 114mw
Ebay 532nm 12mw and 13mw pens
635 ebay pen 5 mw
Qtech 650nm 100mw with Pmans focus mod
SFCR-200 650nm 290mw
Melles Griot P-50 632.8 nm 1mw HeNe
Melles Griot LHR-201-372 632.8 8mw HeNe
405nm BDR-209 800mw custom heatsink and focus by FP
GPT Laser-gard goggles
Noir ARG #60 goggles
Chargers Opus BT-C3100 V2.2 Nitecore Intellicharger i4
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Old 01-18-2017, 06:33 PM #2755
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Cool, probably 20 mw of that IR. What is the length and diameter?
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

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Old 01-19-2017, 03:25 PM #2756
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

2.5 watts pulsed? Has anyone pulsed these...

NICHIA 520nm 1W High Power Laser Diode w/ ball lens | eBay
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To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.
.........................
PhotoB****t high jacking you too? Use this link instead:
http://imgbb.com

High resolution of my avatar: https://ibb.co/fWOhXF
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Old 01-19-2017, 03:44 PM #2757
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

I didn't know you could pulse those diodes.
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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.
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For more sites and information please check out this thread.
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Old 01-19-2017, 03:57 PM #2758
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by Alaskan View Post
Cool, probably 20 mw of that IR. What is the length and diameter?
It's 6 1/2" long and the main body is 7/8" wide.
It was listed as 200mw on the web site.
Ed
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Cheap Ebay glasses, burn through test.
http://laserpointerforums.com/f53/ch...ugh-83419.html

All you could ever want to know about batteries
www.batteryuniversity.com

Cheap Charger danger
http://laserpointerforums.com/f44/fy...ail-82217.html

Get some safety goggles now
http://laserpointerforums.com/f53/ge...now-75799.html

How healthy is your battery
http://laserpointerforums.com/f67/ho...nce-57576.html

My first build
http://laserpointerforums.com/f51/my...ild-85283.html


Lasers
MSD 303 808nm 256mw/converted 532nm
M who knows 405nm 15mw
Qtech 405nm 95mw with Pmans focus mod
Ebay 405nm 135mw and 12mw pens
405nm Pman special 35mw made from parts he sent me.
Fast Tech 405nm 107mw
Rick Trent 445nm 2.7w Grey host
1st build 450nm PLT450B C3/ YZ-C55 145mw
NDB7675 462nm 1.8 w
515nm 130mw NDG4216
Pman special 532nm 114mw
Ebay 532nm 12mw and 13mw pens
635 ebay pen 5 mw
Qtech 650nm 100mw with Pmans focus mod
SFCR-200 650nm 290mw
Melles Griot P-50 632.8 nm 1mw HeNe
Melles Griot LHR-201-372 632.8 8mw HeNe
405nm BDR-209 800mw custom heatsink and focus by FP
GPT Laser-gard goggles
Noir ARG #60 goggles
Chargers Opus BT-C3100 V2.2 Nitecore Intellicharger i4
LPM Bluefan high range.
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Old 01-19-2017, 04:04 PM #2759
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by CurtisOliver View Post
I didn't know you could pulse those diodes.

You can pulse any diode...
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405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<


Last edited by diachi; 01-19-2017 at 04:04 PM.
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Old 01-19-2017, 04:11 PM #2760
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Not usually in that manner I thought. I know you can pulse them in intervals (strobe), but that doesn't create high energy pulses. Unless I am mistaken.
__________________
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:
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Last edited by CurtisOliver; 01-19-2017 at 04:13 PM.
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Old 01-19-2017, 04:51 PM #2761
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by CurtisOliver View Post
Not usually in that manner I thought. I know you can pulse them in intervals (strobe), but that doesn't create high energy pulses. Unless I am mistaken.

Pulsing at 2.5W isn't creating a high energy pulse either - you're just turning it on and off but with a higher drive current. The duty cycle and short duration of the pulses allows you to use that higher drive current without damaging the diode.
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405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<


Last edited by diachi; 01-19-2017 at 04:51 PM.
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Old 01-19-2017, 04:55 PM #2762
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

More electrical pulsing rather than optical. Thanks Diachi.
__________________
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
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Old 01-19-2017, 05:15 PM #2763
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

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Originally Posted by CurtisOliver View Post
More electrical pulsing rather than optical. Thanks Diachi.

Yeah, the mechanism is different. For example, with Q-switching the gain medium is still receiving pump energy even when it isn't lasing, so it stores up that energy. When the Q-switch turns off and allows lasing to happen all of that energy is dumped in a short, high power pulse. That'd be optical "pulsing", although Q-switching is the more accurate term I'd say, seeing as you're changing the Q of the cavity, the result being pulsed output.

Of course - there are other ways to get high peak power pulses, such as flash lamp pumping, but the input power from the pump is also high peak power, thus high peak output. That'd be electrical pulsing.
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Old 01-19-2017, 05:44 PM #2764
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

I knew a little bit about q-switching because of the huge laserscope.
So the process that is going on inside those diodes is the same as that of the 589 DPSS pointers. Just improved duty cycles and power output. Thanks again. +rep for the explanation.
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Old 01-19-2017, 07:30 PM #2765
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by CurtisOliver View Post
I knew a little bit about q-switching because of the huge laserscope.
So the process that is going on inside those diodes is the same as that of the 589 DPSS pointers. Just improved duty cycles and power output. Thanks again. +rep for the explanation.

Yeah, same as the 589s. Actually, that's all their doing in the 589s too - pulsing the pump LD.
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Old 01-19-2017, 09:51 PM #2766
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

For direct injection lasers (diodes), if your objective is a higher average power, CW is the best option. Pulsing can get you higher peak powers, but the average power needs to be substantially lower.

Many DPSS processes are more efficient at higher powers, so the higher (average) power of the solid state laser component offsets the lower (average) power from the pump component in some cases.
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Old 01-19-2017, 10:15 PM #2767
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

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2.5 watts pulsed? Has anyone pulsed these...

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Old 01-19-2017, 10:29 PM #2768
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by Cyparagon View Post
For direct injection lasers (diodes), if your objective is a higher average power, CW is the best option. Pulsing can get you higher peak powers, but the average power needs to be substantially lower.

Many DPSS processes are more efficient at higher powers, so the higher (average) power of the solid state laser component offsets the lower (average) power from the pump component in some cases.

Good point on DPSS. Certainly, non-linear optics (I.e. the SHG/SFG part we use in DPSS) are more efficient at higher powers.

Not sure if that's why certain DPSS pointers are pulsed, or if it's just for thermal management. Perhaps both.
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