Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers
How to Register on LPF | LPF Donations
Laser Pointer Forums - Discuss Laser Pointers | High Power Lasers
this is the front facet of a red 1-5mW chip-on-board LD into which i put catastrophic amount of current (on purpose 
). naturally, it doesnt lase anymore. the junction is electrically intact, which suggest that it suffered COD. The colored archs werent there prior to the "accident". The innermost oval is where the actual laser beam emerges. the facet in this tiny region is probably ruptured and the AR coating /blue stuff/ is oxidized.
). naturally, it doesnt lase anymore. the junction is electrically intact, which suggest that it suffered COD. The colored archs werent there prior to the "accident". The innermost oval is where the actual laser beam emerges. the facet in this tiny region is probably ruptured and the AR coating /blue stuff/ is oxidized.