Polymer-based compact comb filter with flat top response

Qiang Wu; Pak L. Chu; Hau Ping Chan; Bishnu Pal

doi:10.1109/LPT.2005.859548

Polymer-based compact comb filter with flat top response

Qiang Wu, Pak L. Chu, Hau Ping Chan, Bishnu Pal

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

A polymer-based compact comb filter with flat top spectral characteristics is reported. A design equation has been derived from which the values of the device parameters can be optimized to render the desired performance characteristics of the filter. The polymer waveguide version of this filter has been fabricated and its experimental spectral characteristics agree very well with the theoretical one. This filter is compact with dimensions 26 × 8 mm2 because no cascade of unbalanced Mach-Zehnder interferometers is used. Its flat top extends to 50% of the channel width and channel isolation is 22 dB. The filter covers both the C-band and L-band wavelength range with channel spacing 1.6 nm.

Original language	English
Pages (from-to)	2619-2621
Journal	IEEE Photonics Technology Letters
Volume	17
Issue number	12
DOIs	https://doi.org/10.1109/LPT.2005.859548
Publication status	Published - Dec 2005

Keywords

cmb filter
Mach–Zehnder interferometer

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10.1109/LPT.2005.859548

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author = "Qiang Wu and Chu, \{Pak L.\} and Chan, \{Hau Ping\} and Bishnu Pal",

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AU - Chan, Hau Ping

AU - Pal, Bishnu

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AB - A polymer-based compact comb filter with flat top spectral characteristics is reported. A design equation has been derived from which the values of the device parameters can be optimized to render the desired performance characteristics of the filter. The polymer waveguide version of this filter has been fabricated and its experimental spectral characteristics agree very well with the theoretical one. This filter is compact with dimensions 26 × 8 mm2 because no cascade of unbalanced Mach-Zehnder interferometers is used. Its flat top extends to 50% of the channel width and channel isolation is 22 dB. The filter covers both the C-band and L-band wavelength range with channel spacing 1.6 nm.

KW - cmb filter

KW - Mach–Zehnder interferometer

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 12

ER -

Polymer-based compact comb filter with flat top response

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Keywords

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