PS3 Bluray Laser Diode pics (can opened)

[chimo]

Here are some macros of a Sony Bluray Laser Diode that I removed the can from due to a problam with the LD window.

Freshly opened can:


The Business End


Stained Glass Window (note "burned" area)

[jufam44]

Wow, those are great pics! What exactly happened to it? Did it just bust itself up, or was it left on without cooling, or a mysterious act of divine intervention?

-Max

[chimo]

The coating on the window "burned" (by over-driving). I removed the can to get the window off. The laser diode still works.

[IgorT]

The laser diode still works.

This is what i'm amazed about.. It's a reader diode (right?), and you measured 70-80mW!

These Blue Rays are weird.. They are sensitive and sturdy at the same time.


When mine died, i noticed i had to drive them at 220mA to get a beam. And they can still take it. Unfortunatelly, the beam is much less bright, than it was, before they died. They also heat up A LOT and this makes the beam become dimmer, but if they are cooled, they can take this current for a long time.

The other one had 1.6A flowing through it after it died, and after that it started working at between 220 and 300mA again.


They really are weird, but i will treat my next two very gently. Don't want to lose them again.

[chimo]

The high Vf of these (~5V) guarentee that lots of power will be consumed in comparison to a red/IR laser diode.

50mA is going to consume ~ 250mW
220mA is going to consume ~ 1250mW (not surprising it got hot!)

This is what i'm amazed about.. It's a reader diode (right?), and you measured 70-80mW!

These Blue Rays are weird.. They are sensitive and sturdy at the same time.


When mine died, i noticed i had to drive them at 220mA to get a beam. And they can still take it. Unfortunatelly, the beam is much less bright, than it was, before they died. They also heat up A LOT and this makes the beam become dimmer, but if they are cooled, they can take this current for a long time.

The other one had 1.6A flowing through it after it died, and after that it started working at between 220 and 300mA again.


They really are weird, but i will treat my next two very gently. Don't want to lose them again.

[chimo]

Here's a pic of this Bluray laser bouncing inside my watch crystal.

[dr_lava]

I like that photo. That is a very thin beam! did you use an apreture, or what collimator did you use?

[chimo]

I like that photo. That is a very thin beam! did you use an apreture, or what collimator did you use?

Thanks, it's just a plain old Aixiz module (DX version). It's actually from the LD posted above (post can removal).

[Kiessling]

This is a very very cool pic. Thanx for sharing!

[chimo]

This is a very very cool pic. Thanx for sharing!

Why thank you. Here's a hi-res link if you want to see more detail.

[Kiessling]

Saved to HD, thanx

[Skram0]

It's interesting how the beam looks green on the inside. Looks pretty bad.. Nice pic.