The scale and structure of the first and second photodiodes and the magnitude of the reverse bias applied across each photodiode are selected to produce substantially {HEAD ~ the same dark current} flowing through {TAIL ~ each photodiode} 
flowing through
The scale and structure of the first and second photodiodes and the magnitude of the reverse bias applied across each photodiode are selected to produce substantially { HEAD ~ the same dark current } flowing through { TAIL ~ each photodiode }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL