Spectral slicing optical waveguide filters for dense wavelength division multiplexing

Designs for optical waveguide filters for selecting alternate channels in a dense wavelength division multiplexing (WDM) system are described. Each filter consists of a single mode optical waveguide with N equally spaced reflectors positioned along its length. Proper selection of the mirror reflecta...

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Bibliographic Details
Published in:Optics communications 2004-03, Vol.233 (1), p.113-117
Main Authors: Yim, Seongmin, Taylor, Henry F
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber optics
Fiber waveguides, couplers, and arrays
Filters, zone plates, and polarizers
Fundamental areas of phenomenology (including applications)
Integrated optics. Optical fibers and wave guides
Optical and optoelectronic circuits
Optical elements, devices, and systems
Optical filter
Optics
Physics
Waveguide filter
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Description
Summary:Designs for optical waveguide filters for selecting alternate channels in a dense wavelength division multiplexing (WDM) system are described. Each filter consists of a single mode optical waveguide with N equally spaced reflectors positioned along its length. Proper selection of the mirror reflectance values gives flat-top response for both transmitted and reflected channels. Calculated transmittance and reflectance spectra as well as dispersion characteristics for the filters are presented for N as high as 12. In a design example with a channel spacing of 25 GHz, the “usable bandwidth” was 14.1 GHz.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2004.01.036