OPTICAL PHASE-LOCK LOOPS WITH PHOTOCONDUCTIVE SEMICONDUCTOR PHASE-DETECTORS

Citation
F. Davidson et al., OPTICAL PHASE-LOCK LOOPS WITH PHOTOCONDUCTIVE SEMICONDUCTOR PHASE-DETECTORS, Optics letters, 19(11), 1994, pp. 774-776
Citations number
6
Categorie Soggetti
Optics
Journal title
ISSN journal
01469592
Volume
19
Issue
11
Year of publication
1994
Pages
774 - 776
Database
ISI
SICI code
0146-9592(1994)19:11<774:OPLWPS>2.0.ZU;2-J
Abstract
Photoconductive semiconductors that contain deep-level traps can be us ed as optical phase detectors because of photocurrents generated by mo ving space-charge electric fields formed inside the material by transi ent optical interference patterns. Two narrow-linewidth Nd:YAG nonplan ar ring oscillator lasers were successfully phase locked with InP:Fe, GaAs:Cr, GaAs, and CdTe:V crystals used as optical phase detectors.