The temperature tuning coefficient is {HEAD ~ a measure} of {TAIL ~ the center wavelength dependence} on temperature 
of
The temperature tuning coefficient is { HEAD ~ a measure } of { TAIL ~ the center wavelength dependence } on temperature
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH