Title :
Polarisation insensitive meander-type wavelength demultiplexer with large tuning range
Author :
Trommer, D. ; Arps, M. ; Kreissl, J. ; Steingrüber, R. ; Ebert, W. ; Venghaus, H.
Author_Institution :
Heinrich-Hertz-Inst. fur Nachrichtentech. Berlin GmbH, Germany
Abstract :
A polarisation insensitive narrow band filter with large tuning range of about 20 nm based on InP technology is reported for the first time. A record low insertion loss of 2.5 dB and a through suppression at the centre wavelength of 20 dB has been achieved. We present a polarisation insensitive narrow band dropping filter with a large tuning range. The filter device is a meander-type codirectional coupler, fabricated in GaInAsP-InP
Keywords :
III-V semiconductors; gallium arsenide; gallium compounds; indium compounds; optical communication equipment; optical directional couplers; optical fibre losses; optical tuning; optical waveguide filters; sensitivity; wavelength division multiplexing; 2.5 dB; GaInAsP-InP; InP technology; centre wavelength suppression; large tuning range; low insertion loss; meander-type codirectional coupler; optical fabrication; polarisation insensitive meander-type wavelength demultiplexer; polarisation insensitive narrow band dropping filter; polarisation insensitive narrow band filter; Bandwidth; Filters; Heating; Indium phosphide; Insertion loss; Optical fiber devices; Optical fiber polarization; Shape; Tellurium; Temperature distribution;
Conference_Titel :
Optical Communication, 1998. 24th European Conference on
Conference_Location :
Madrid
Print_ISBN :
84-89900-14-0
DOI :
10.1109/ECOC.1998.732460
