405nm Laser Diode

Blue, Violet, almost Ultraviolet really. I made a driver board and just need to finish the heatsink and mount it in a case. I bought a translucent blue project box from Hammond that I'll be mounting the laser in.

  • 405nm (Blue) Laser
  • 3 pin
  • 3.6mm diameter

Power Measurements

Current (mA)Voltage (V)Power (mW)
30.04.10
40.04.260.83
43.0 2.2
45.0 2.4
46.0 2.9
47.0 3.7
48.0 4.1
49.0 4.4
50.04.415.7
60.04.529.8

Pinout

PinDescription
1Anode(+)
2Case Ground
3Cathode (-)
4nc

Diode Driver

ComponentDigikey Part#DescriptionPrice
IC1LM317LM317$
R1CT6EP500-NDPOT 50 OHM 6MM CERMET TOP$0.73
D1,D2MBRA140T3GOSCT-NDDIODE SCHOTTKY 40V 1A SMA$

Based on schematic from http://www.repairfaq.org/sam/Blu-ray/site1/diode.html

Collimating Lens

Currently I am using a plastic collimating lens intended for a red laser diode.

I need to get a quote on a proper lens such as this one from Lightpath, 352673-A or 352671-A

Both Edmund and Thorlabs carry as well as Newport.

Pictures

Click to enlarge, Mouseover for description

Diode connected to driver board Violet diode Violet diode Violet diode Red/UV? diode from DVD Green fluorescing marble UV Laser on paper Copper heatsink Lasing at 60mA Same setup, just with lights on Datamatrix barcode on back of Violet diode 405nm diode freshly removed from DVD player Driver board

Pictures of a red laser diode and driver

You can see the photodiode in the back of the can. The Violet LD dosen't have a photodiode.

Red Diode driver front Red Diode driver front Red Diode Red Diode

4 pin Laser Diode

  • 650nm (Red) Laser
  • 760nm (IR) Laser

3.6mm diameter

Optics

  • Dichroic mirror
  • Beam splitter

Hardware

HD DVD player which was disassembled.

Toshiba HD DVD Player

Model HD-A2KU

Newport Laser diode driver notes

Require a DB9 Male

Pin # Description
1,2 Interlock Shorting jumper or external closure
3 Chassis Gnd AC coupled to chassis shield or drain wire
4,5 Laser Cathode
6 Photodiode Cathode
7 Photodiode Anode
8,9 Laser Anode

Useful Links

 
projects/405nmlaser.txt · Last modified: 2014/11/13 10:50 (external edit)
 
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