Title :
Analysis and Development of Fixed and Variable Waveband MUX/DEMUX Utilizing AWG Routing Functions
Author :
Kakehashi, Shoji ; Hasegawa, Hiroshi ; Sato, Ken-Ichi ; Moriwaki, Osamu ; Kamei, Shin
Author_Institution :
Nagoya Univ., Nagoya
Abstract :
We develop and analyze a new waveband multi/demultiplexer that exploits the routing functions of arrayed-waveguide gratings (AWG). The device can accommodate multiple input/output fibers simultaneously and be implemented monolithically using silica planar lightwave circuit (PLC) technology. We analyze AWG port usage for variants of the proposed multi/demultiplexers. The important characteristic of the device, its coherent and incoherent crosstalk performance is investigated. A technique to reduce the crosstalk is presented. We extend the capability of the device so that the waveband bandwidth can be changed by adding small switches. Experiments confirm the excellent performance of the proposed waveband multi/demultiplexer.
Keywords :
arrayed waveguide gratings; demultiplexing equipment; multiplexing equipment; optical communication equipment; optical crosstalk; optical fibre communication; optical planar waveguides; optical switches; silicon compounds; telecommunication network routing; AWG routing functions; SiO2; arrayed-waveguide gratings; coherent crosstalk; fixed waveband demultiplexer; fixed waveband multiplexer; incoherent crosstalk; multiple input-output fibers; optical switches; silica planar lightwave circuit technology; variable waveband demultiplexer; variable waveband multiplexer; waveband bandwidth; Arrayed waveguide gratings; Bandwidth; Circuits; Communication system traffic control; Optical crosstalk; Optical fiber devices; Optical filters; Programmable control; Routing; Switches; Arrayed-waveguide gratings (AWG); crosstalk; planar lightwave circuit (PLC); waveband; waveband cross connect; waveband multi/demultiplexer (MUX/DEMUX);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2008.929125
