On the other hand, {TAIL ~ a small tuning coefficient} will yield small changes in center wavelength with {HEAD ~ temperature} 
On the other hand , { TAIL ~ a small tuning coefficient } will yield small changes in center wavelength with { HEAD ~ temperature }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD