In the present invention, the sensor readout includes optics for producing {HEAD ~ an interference fringe pattern} to impinge upon {TAIL ~ a pair} of photodetectors 
to impinge upon
In the present invention , the sensor readout includes optics for producing { HEAD ~ an interference fringe pattern } to impinge upon { TAIL ~ a pair } of photodetectors
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH