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