Okay, here's one for the laser chemistry pros. I just completed the build of one of the GB blu-ray diodes, and I noticed that when powering the diode at the very low end (below the commonly reported threshold), this diode was indeed lasing and also putting out non-coherent white light! At first, I thought it was the acrylic lens, but a close examination revealed this was not the case. Is it possible that this chemistry may have very, very diminished lines that 'leak' and in combination, appear white?
Configuration specs:
LM317 current regulator, 6V input, 13.7mA supplied to LD.
PS3 stacked LD, only blu-ray wired and pinned out. Other LD lines left open.
Aixiz standard 12x30mm housing, unmodified acrylic lens.
Additional test operation at 45mA. TEM00 output at <=15mW. No noticeable artifacts in output. Negligible thermal output. Duty cycle 30s:120s
Configuration specs:
LM317 current regulator, 6V input, 13.7mA supplied to LD.
PS3 stacked LD, only blu-ray wired and pinned out. Other LD lines left open.
Aixiz standard 12x30mm housing, unmodified acrylic lens.
Additional test operation at 45mA. TEM00 output at <=15mW. No noticeable artifacts in output. Negligible thermal output. Duty cycle 30s:120s