Title :
Wideband frequency response measurement of photodetectors using optical heterodyne detection technique
Author :
Kawanishi, S. ; Saruwatari, M.
Author_Institution :
NTT Telecommunication Networks Laboratories, Yokosuka, Japan
Abstract :
A novel wideband frequency-response measurement system for photodetectors is demonstrated using the optical heterodyne detection technique. By sweeping the frequency difference of two DFB-LDs with temperature control, a 3 dB bandwidth of 18 GHz of an InGaAs PIN photodiode has been successfully measured.
Keywords :
frequency response; measurement by laser beam; photodetectors; photodiodes; semiconductor device testing; 18 GHz; 3 dB bandwidth; DFB laser diodes; InGaAs p-i-n photodiode; PIN devices; frequency difference sweeping; frequency-response measurement system; optical heterodyne detection; photodetectors; semiconductor device testing; temperature control; wideband technique;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860231
