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