Title :
Characteristics of mismatched twin-core fiber spectral filters
Author :
Ortega, B. ; Dong, L.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
fDate :
7/1/1998 12:00:00 AM
Abstract :
Both bandstop and bandpass filters can be easily implemented with mismatched twin-core fibers designed to phase-match at a certain wavelength. These filters are highly stable with very low temperature and strain sensitivity. We studied the spectral quality of these filters and that of cascaded filters designed to achieve improved bandpass response. We have also demonstrated the feasibility of achieving designed loss profile from these filters. This is very useful in gain spectrum flattening in Er-doped fiber amplifiers.
Keywords :
band-pass filters; band-stop filters; optical communication equipment; optical fibre filters; optical fibre losses; optical fibre testing; sensitivity; Er-doped fiber amplifiers; bandpass filters; bandpass response; bandstop filters; cascaded filters; designed loss profile; gain spectrum flattening; highly stable; mismatched twin-core fiber spectral filters; mismatched twin-core fibers; phase-match; spectral quality; strain sensitivity; very low temperature sensitivity; Band pass filters; Capacitive sensors; Optical devices; Optical fiber couplers; Optical fiber devices; Optical fiber filters; Optical fibers; Optical filters; Optical noise; Temperature sensors;
Journal_Title :
Photonics Technology Letters, IEEE
