- Oct 30, 2007
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.
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