I'm looking for some LD/LED emitters centered around these bands, no more than 100 nm wide. I can't seem to find much more than 2 mW available for $20 ea. Aren't there some pump LDs available in this range? I thought mid-IR would have been a common pump band, causing the 1970s USA government to fund the development of manufacture of billions of emitters in anticipation of the DPSS age.
What gives?
I don't even need a good beam, just lots of light for a remote sensing application. Any ideas?