- Sep 20, 2013
When testing these Sharp diodes, I keep them at 18* C and test first just above threshold current, about 50 mA. They don't tend to shift a lot from there up to 300 mA. I have run through several dozens of these Sharp single mode diodes over the past year or so. I've found they stay very stable at 275 mA when heat sinked to a fairly large aluminum heat sink or a copper one half that size. They will shift if you allow them to heat up by as much as 45* Delta C. You can expect to see a shift by as much as 4nm.