Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Drivers, Test-load, Power Supply, & Batteries



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 03-16-2012, 09:33 PM #1
Junior Member
 
Join Date: Mar 2012
Posts: 12
Rep Power: 0
apoelistas77 is on a distinguished road
apoelistas77 apoelistas77 is offline
Junior Member
 
Join Date: Mar 2012
Posts: 12
Rep Power: 0
apoelistas77 is on a distinguished road
Question what's a laser diode driver?

Hi guys! Sorry for the stupid question, but when i searched in google what's the job of a laser diode driver, i couldn't find anything helpful. So far i have made a circuit using a laser diode, batteries and a resistor. Can someone help?
thanks


apoelistas77 is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 03-16-2012, 09:45 PM #2
Blord's Avatar
Class 4 Laser
 
Join Date: Dec 2007
Location: Belgium
Posts: 5,368
Rep Power: 770
Blord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond repute
Blord Blord is offline
Class 4 Laser
Blord's Avatar
 
Join Date: Dec 2007
Location: Belgium
Posts: 5,368
Rep Power: 770
Blord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond repute
Default Re: what's a laser diode driver?

How laser diode drivers work; An Explanatory Thread
__________________
405nm 400mW S06J C6
445nm 3W Big Boy, 2.8W Dominator, 2.4W Steel Laser
450nm 240mW PL450 C6
473nm 100mW PGL-III-C-473
520nm 55mW Skylaser PL520
532nm 821mW Skylaser PL532, 133mW Jetlasers Ti-B
589nm 100mW PGL-III-C-589
635nm 70mW Sanyo SenTorch
638nm 175mW Ehgemus, 1W Rook
660nm 1216mW Skylaser PL660, 263mW LPC826 C6
685nm 33mW Fujitsu FLD6A2TK C6
780nm 150mW Dilda
808nm 640mW C6

I have copper 501B and Dominator lasers for sale !
Blord is offline   Reply With Quote
Old 03-16-2012, 09:48 PM #3
Class 2 Laser
 
Join Date: Dec 2011
Location: Up North, England, UK
Posts: 465
Rep Power: 28
Stix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond repute
Stix62 Stix62 is offline
Class 2 Laser
 
Join Date: Dec 2011
Location: Up North, England, UK
Posts: 465
Rep Power: 28
Stix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond reputeStix62 has a reputation beyond repute
Default Re: what's a laser diode driver?

''...when i searched in google what's the job of a laser diode driver, i couldn't find anything helpful''

You're kidding right?
__________________
Lazerer Rifle 1.2W 445nm (1.35A) - Peak 1392mW, stable1350mW (running on AW IMR 18350s - much better fit )
'Mohrenberg' JAD driver in pill @1.62A + DTR' M140 445nm in Survival Stainless Steel Host - Peak 1513mW (3 element glass lens)

O-LikeCrown Upgrade 500mW - Peak 599mW, stable .'ish 550mW
MegalasersUK 125mW - Peak 102mW
Jayrob Solar Force L2P custom kit @ 478mA + DTR S06J 12X 405nm - Peak 729mW
Survival Stainless Steel Host + DTR S06J 12X 405nm - Peak 725mW

Also in the house (son's) - Moh JAD C6@ 460mA and DTR S06J 12X 405nm - 677mW peak + O-like PowerRock 200 532nm - 208mW peak.

*** LaserBee 2.5 Watt USB L.P.M ***

Last edited by Stix62; 03-16-2012 at 09:48 PM.
Stix62 is offline   Reply With Quote
Old 03-16-2012, 10:37 PM #4
AnthoT's Avatar
Class 3R Laser
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
AnthoT AnthoT is offline
Class 3R Laser
AnthoT's Avatar
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
Default Re: what's a laser diode driver?

I can't belief you diditn find it in google but I'll tell you anyway
A laser diode driver is a constant current regulating device that supplies a constant regulated current and voltage and thus keeping your diode running happily
Thats the simplest I could explain it hope I could help.
__________________
FTLasers
AnthoT is offline   Reply With Quote
Old 03-16-2012, 11:24 PM #5
Junior Member
 
Join Date: Mar 2012
Posts: 12
Rep Power: 0
apoelistas77 is on a distinguished road
apoelistas77 apoelistas77 is offline
Junior Member
 
Join Date: Mar 2012
Posts: 12
Rep Power: 0
apoelistas77 is on a distinguished road
Default Re: what's a laser diode driver?

and what happens if i don't use a driver and i just use my batteries and my diode?
apoelistas77 is offline   Reply With Quote
Old 03-16-2012, 11:37 PM #6
Blord's Avatar
Class 4 Laser
 
Join Date: Dec 2007
Location: Belgium
Posts: 5,368
Rep Power: 770
Blord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond repute
Blord Blord is offline
Class 4 Laser
Blord's Avatar
 
Join Date: Dec 2007
Location: Belgium
Posts: 5,368
Rep Power: 770
Blord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond repute
Default Re: what's a laser diode driver?

You will blow up the diode. Simple as that.
__________________
405nm 400mW S06J C6
445nm 3W Big Boy, 2.8W Dominator, 2.4W Steel Laser
450nm 240mW PL450 C6
473nm 100mW PGL-III-C-473
520nm 55mW Skylaser PL520
532nm 821mW Skylaser PL532, 133mW Jetlasers Ti-B
589nm 100mW PGL-III-C-589
635nm 70mW Sanyo SenTorch
638nm 175mW Ehgemus, 1W Rook
660nm 1216mW Skylaser PL660, 263mW LPC826 C6
685nm 33mW Fujitsu FLD6A2TK C6
780nm 150mW Dilda
808nm 640mW C6

I have copper 501B and Dominator lasers for sale !
Blord is offline   Reply With Quote
Old 03-16-2012, 11:50 PM #7
AnthoT's Avatar
Class 3R Laser
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
AnthoT AnthoT is offline
Class 3R Laser
AnthoT's Avatar
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
Default Re: what's a laser diode driver?

Quote:
Originally Posted by Blord View Post
You will blow up the diode. Simple as that.
Couldn't have said it better myself.....BOOM there goes your money, diode and hard work
__________________
FTLasers
AnthoT is offline   Reply With Quote
Old 03-17-2012, 12:00 AM #8
Junior Member
 
Join Date: Mar 2012
Posts: 12
Rep Power: 0
apoelistas77 is on a distinguished road
apoelistas77 apoelistas77 is offline
Junior Member
 
Join Date: Mar 2012
Posts: 12
Rep Power: 0
apoelistas77 is on a distinguished road
Default Re: what's a laser diode driver?

So, every time i have to choose a driver which is as mW is the laser diode?
For example, if i use a 200mW laser diode i also have to use a 200mW driver?
apoelistas77 is offline   Reply With Quote
Old 03-17-2012, 12:04 AM #9
DTR's Avatar
DTR DTR is online now
Class 4 Laser
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
DTR DTR is online now
Class 4 Laser
DTR's Avatar
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
Default Re: what's a laser diode driver?

Here is a good link that explains more the why rather than just the driver options that are available. It is an old article but still a great read for newcomers.
Laser driver - It can be done

Last edited by DTR; 03-17-2012 at 12:06 AM.
DTR is online now   Reply With Quote
Old 03-17-2012, 12:35 AM #10
Junior Member
 
Join Date: Mar 2012
Posts: 12
Rep Power: 0
apoelistas77 is on a distinguished road
apoelistas77 apoelistas77 is offline
Junior Member
 
Join Date: Mar 2012
Posts: 12
Rep Power: 0
apoelistas77 is on a distinguished road
Default Re: what's a laser diode driver?

thank you guys, but you still don't answer my question. Every time i have to choose a driver which is as mW is the laser diode? (i am not talking about homemade drivers).
apoelistas77 is offline   Reply With Quote
Old 03-17-2012, 12:37 AM #11
AnthoT's Avatar
Class 3R Laser
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
AnthoT AnthoT is offline
Class 3R Laser
AnthoT's Avatar
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
Default Re: what's a laser diode driver?

Which diode? if you tell me I can answer your question
__________________
FTLasers
AnthoT is offline   Reply With Quote
Old 03-17-2012, 12:40 AM #12
Blord's Avatar
Class 4 Laser
 
Join Date: Dec 2007
Location: Belgium
Posts: 5,368
Rep Power: 770
Blord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond repute
Blord Blord is offline
Class 4 Laser
Blord's Avatar
 
Join Date: Dec 2007
Location: Belgium
Posts: 5,368
Rep Power: 770
Blord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond repute
Default Re: what's a laser diode driver?

The number in the diode is the maximum power. So a 200mW diode can handle any power till 200mW. The power will be set by the driver, not the diode.
__________________
405nm 400mW S06J C6
445nm 3W Big Boy, 2.8W Dominator, 2.4W Steel Laser
450nm 240mW PL450 C6
473nm 100mW PGL-III-C-473
520nm 55mW Skylaser PL520
532nm 821mW Skylaser PL532, 133mW Jetlasers Ti-B
589nm 100mW PGL-III-C-589
635nm 70mW Sanyo SenTorch
638nm 175mW Ehgemus, 1W Rook
660nm 1216mW Skylaser PL660, 263mW LPC826 C6
685nm 33mW Fujitsu FLD6A2TK C6
780nm 150mW Dilda
808nm 640mW C6

I have copper 501B and Dominator lasers for sale !
Blord is offline   Reply With Quote
Old 03-17-2012, 01:39 AM #13
tsteele93's Avatar
Class 3R Laser
 
Join Date: Dec 2011
Location: South Cackalackey, USA
Posts: 2,065
Rep Power: 321
tsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond repute
tsteele93 tsteele93 is offline
Class 3R Laser
tsteele93's Avatar
 
Join Date: Dec 2011
Location: South Cackalackey, USA
Posts: 2,065
Rep Power: 321
tsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond reputetsteele93 has a reputation beyond repute
Default Re: what's a laser diode driver?

Quote:
Originally Posted by apoelistas77 View Post
Hi guys! Sorry for the stupid question, but when i searched in google what's the job of a laser diode driver, i couldn't find anything helpful. So far i have made a circuit using a laser diode, batteries and a resistor. Can someone help?
thanks
One of the best first questions I have seen so far. Usually we get, "where can I get a laser that will start my school on fire?" or "how many watts does it take to blind someone I don't like?"

Your question isn't stupid at all!

Also, different diodes require different voltages AND different currents. As a rule, the longer the wavelength, the lower the voltage. It will also depend on what kind of battery you want to use.

If you want to use two 3.7 v batteries to drive a red diode then you need a driver that can buck (decrease) the voltage in addition to supplying the correct current for the diode.

If you want to use a low voltage setup, lke two AA's at a total of 3v then you need a driver that can boost (increase) the voltage as well as provide the correct current for the diode.

Hang on, I'll get a post that explains it really well.

EDIT:.FREE DIY open source BOOST driver!!! Tested & working!!
__________________
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Tom Steele

Why I'm Here

405nm tsteele93 12x build @ 545mW

445nm Survival Laser @ 1.25W - GIFTED
445nm Stainless Steel Monster with H140 diode @1.62A - 2.15W!
450nm rhd single mode @ 190mW

532nm O-like 50 mW pen from Cajun Lasers - small dot, tight beam!
532nm O-like Crown, rated @ 400mW, metered @ ~450mW with AW battery!
532nm O-like Crown rated @ 500mW, not yet tested
532nm RPL-165 @ 204mW
532nm RPL-375 @ 427mW

635nm rhd Lipstick Tube @ ~485+ mW
638nm Fat Boy @ 825mW - custom build

650nm Bolly BL-8006 @ 319mW

Laser Safety and Eye Injury

Last edited by tsteele93; 03-17-2012 at 01:56 AM.
tsteele93 is offline   Reply With Quote
Old 03-17-2012, 01:45 AM #14
Elektrotechniker's Avatar
Class 3B Laser
 
Join Date: Nov 2008
Location: Germany
Posts: 4,240
Rep Power: 409
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Elektrotechniker Elektrotechniker is offline
Class 3B Laser
Elektrotechniker's Avatar
 
Join Date: Nov 2008
Location: Germany
Posts: 4,240
Rep Power: 409
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Default Re: what's a laser diode driver?

apoelistas77, are you from Cyprus? Welcome, btw...

Last edited by Elektrotechniker; 03-17-2012 at 01:46 AM.
Elektrotechniker is offline   Reply With Quote
Old 03-17-2012, 02:06 AM #15
vk2fro's Avatar
Class 3R Laser
 
Join Date: Nov 2009
Location: Sydney, Australia
Posts: 1,154
Rep Power: 57
vk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond repute
vk2fro vk2fro is offline
Class 3R Laser
vk2fro's Avatar
 
Join Date: Nov 2009
Location: Sydney, Australia
Posts: 1,154
Rep Power: 57
vk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond reputevk2fro has a reputation beyond repute
Default Re: what's a laser diode driver?

Diodes (laser diodes) are current driven devices. The driver is like a tube in a water system.

It restricts the flow of the water (current) to the diode (sprinkler) so the top doesnt blow off with the pressure (too much current).

In the case of a laser diode, they usually have a spec sheet that is either delivered with the diode, or can be found online. The sheet tells you what size pipe to fit between the tap and the sprinkler (what the maximum current the diode can handle before going POP!). A driver has a potentiometer or pot. You adjust this pot to set the current to the recommended value. This is like getting the right sized hose for our sprinkler analogy.

Once the potentiometer is set, there is usually no further reason to change it, hence on 99% of laser pointers, you wont find a knob to adjust.

Pot modding (the act of increasing the water flow, or current) was one way of getting more power out of a cheap ebay green, at the expense of shortening the diode life, or possibly simply blowing it up.

Drivers come in different styles. Some diodes need 5V to run, and wont work off a 3.7-4.2v lipo, so the boost driver was invented. It pumps the voltage up to 5V, and regulates the current. For 2 battery models that have a battery voltage of up to 8.4 volts, the buck driver was invented. What this guy does is uses the excess voltage and converts it into current.

Both types dispense heat while operating.

Some of our drivers are very simple, but perform the work needed.

Finally, a laser diode is NOT a LED but soon will be if you continue to use the resistor alone as your current regulator.
__________________
Taipan Projector: 3.5-4 W B(445nm)1.5W, G(532nm)1.5W R(637nm)1W DT30 Still building!
All solid state PJ: 1W B(462)400mw G(520)200mw R(638) 400mw DT40W (collecting bits)
Pointers: 1.0 watt "Z-Lase" - 520 nm diode by DTR attached to segelei zmax V5 Vaporizer
Gassers: Omnichrome 643 Multi Line AR/KR+ ION!!!! doing ~190mW Low hours too!
Siemens 3 mw 632nm helium neon

Last edited by vk2fro; 03-17-2012 at 05:00 PM.
vk2fro is offline   Reply With Quote
Old 03-17-2012, 03:44 AM #16
GAtkins's Avatar
Class 2 Laser
 
Join Date: Nov 2011
Location: Arkansas
Posts: 296
Rep Power: 33
GAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond repute
GAtkins GAtkins is offline
Class 2 Laser
GAtkins's Avatar
 
Join Date: Nov 2011
Location: Arkansas
Posts: 296
Rep Power: 33
GAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond reputeGAtkins has a reputation beyond repute
Default Re: what's a laser diode driver?

Or "i want to burn the arse hairs on my cat at 10 feet!"




Quote:
Originally Posted by tsteele93 View Post
One of the best first questions I have seen so far. Usually we get, "where can I get a laser that will start my school on fire?" or "how many watts does it take to blind someone I don't like?"

Your question isn't stupid at all!

Also, different diodes require different voltages AND different currents. As a rule, the longer the wavelength, the lower the voltage. It will also depend on what kind of battery you want to use.

If you want to use two 3.7 v batteries to drive a red diode then you need a driver that can buck (decrease) the voltage in addition to supplying the correct current for the diode.

If you want to use a low voltage setup, lke two AA's at a total of 3v then you need a driver that can boost (increase) the voltage as well as provide the correct current for the diode.

Hang on, I'll get a post that explains it really well.

EDIT:.FREE DIY open source BOOST driver!!! Tested & working!!
__________________
1x OEM Laser Systems TRI - KTP, 808nm, 980nm, YAG, FS 38, OD4-OD7
2x Eagle Pair 190-540 & 800-2000nm OD4+ CE
1x Eagle Pair 190-540nm OD4+ CE
LaserBee 2.5W USB LPM
GAtkins is offline   Reply With Quote
Reply

Tags
a laser, diode, driver, what's





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











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 09:54 AM.


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