I think maybe he wants to build a Blu-Ray 405nm Violet Laser...:thinking:
BTW...
to the Forum...
there are many tutorials on building Laser on the Forum...
All you need to do is a little research and reading and most of
your questions will be answered...
Enjoy your stay....
[Edit]... I hope this time you will use a driver or it will become expensive
to keep replacing your LD...