Table of Contents
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) |
|---|---|---|
| 30.0 | 4.10 | |
| 40.0 | 4.26 | 0.83 |
| 43.0 | 2.2 | |
| 45.0 | 2.4 | |
| 46.0 | 2.9 | |
| 47.0 | 3.7 | |
| 48.0 | 4.1 | |
| 49.0 | 4.4 | |
| 50.0 | 4.41 | 5.7 |
| 60.0 | 4.52 | 9.8 |
Pinout
| Pin | Description |
|---|---|
| 1 | Anode(+) |
| 2 | Case Ground |
| 3 | Cathode (-) |
| 4 | nc |
Diode Driver
| Component | Digikey Part# | Description | Price |
|---|---|---|---|
| IC1 | LM317 | LM317 | $ |
| R1 | CT6EP500-ND | POT 50 OHM 6MM CERMET TOP | $0.73 |
| D1,D2 | MBRA140T3GOSCT-ND | DIODE 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
Pictures
Click to enlarge, Mouseover for description
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.
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
- Toshiba Laser Diode Product Catalog - Should be very useful - Local Copy
- Toshiba HDA2 Service Manual - Not as useful as you might think. Should be useful for scavenging other parts off of the board, especially the display and the TOSLINK connector.
- Blu-Ray
- Dissection of a Blu-ray Reader Assembly - Different than what I encountered