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Proceedings Paper

Waveguide interleaving filters
Author(s): Takafumi Chiba; Hideaki Arai; Hideki Nounen; Katsumi Ohira
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Paper Abstract

Optical Interleaving filters are attractive components in WDM systems especially narrower than 100GHz channel spacing system. Several types of interleaving filters have been proposed and realized. An interleaving filter is required to have the Box-like characteristics such as the periodic response, flat-passband, low insertion loss and low crosstalk. In addition, low chromatic dispersion (CD) is indispensable for DWDM systems. We focus on planar lightwave circuit interleaving filters. In this paper, we present interleaving filters with a tandem configuration of Fourier transform-based MZIs. The circuit using PLC technique is fabricated with high index contrast waveguides of Δ1.5%. We also have demonstrated monolithically integrated 1×4 (50-200GHz) interleaving filters and arrayed waveguide gratings(AWGs) with 200GHz-channel spacing suitable for interleaving WDM system.

Paper Details

Date Published: 14 August 2003
PDF: 7 pages
Proc. SPIE 5246, Active and Passive Optical Components for WDM Communications III, (14 August 2003); doi: 10.1117/12.514003
Show Author Affiliations
Takafumi Chiba, Hitachi Cable, Ltd. (Japan)
Hideaki Arai, Hitachi Cable, Ltd. (Japan)
Hideki Nounen, Hitachi Cable, Ltd. (Japan)
Katsumi Ohira, Hitachi Cable, Ltd. (Japan)

Published in SPIE Proceedings Vol. 5246:
Active and Passive Optical Components for WDM Communications III
Achyut K. Dutta; Abdul Ahad S. Awwal; Niloy K. Dutta; Kazuo Fujiura, Editor(s)

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