Title :
Fabrication-Error-Tolerant Triplexer based on Planar Lightwave Circuit
Author :
Lee, Taehyung ; Lee, Donghyun ; Kim, Suhyun ; Chung, Youngchul
Author_Institution :
Dept. of Electron. & Comm. Eng., Kwangwoon Univ., Seoul
Abstract :
A fabrication-error-tolerant planar lightwave circuit triplexer is proposed and analyzed. The triplexer is composed of cascaded Mach-Zehnder interferometer structures with carefully designed path length difference and robust 3-dB couplers. The channel crosstalk at upstream channel is maintained to be less than -50 dB and those at downstream channels less than -20 dB when the waveguide width error is as much as plusmn0.2 mum.
Keywords :
Mach-Zehnder interferometers; multiplexing equipment; optical communication equipment; optical fabrication; Mach-Zehnder interferometer structures; channel crosstalk; downstream channels; fabrication-error-tolerant triplexer; path length difference; planar lightwave circuit; upstream channel; waveguide width error; Circuits; Couplers; Gratings; Lenses; Optical crosstalk; Optical device fabrication; Optical refraction; Optical waveguides; Refractive index; Region 1;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391419
