The present invention is directed toward optical filters, and in particular to optical filters having {HEAD ~ a center wavelength} that is substantially independent of {TAIL ~ temperature} 
is substantially independent of
The present invention is directed toward optical filters , and in particular to optical filters having { HEAD ~ a center wavelength } that is substantially independent of { TAIL ~ temperature }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL