Analysis of a multisection and phase-shift-controlled DFB wavelength-tunable optical filter

We have proposed a new multisection and phase‐shift‐controlled distributed‐feedback wavelength‐tunable optical filter structure. The analysis, which is based on the transfer matrix method, reveals that this filter can achieve a tuning range of 32 and 42 Å for grating coupling coefficients of 6 and 1...

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Bibliographic Details
Published in:Microwave and optical technology letters 2000-11, Vol.27 (3), p.171-175
Main Authors: Low, Andy L. Y., Ghafouri-Shiraz, H., Chuah, H. T.
Format: Article
Language:English
Subjects:
DFB laser diodes
optical-tunable filter
phase shift
SMSR
wavelength-division multiplexing
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Summary:We have proposed a new multisection and phase‐shift‐controlled distributed‐feedback wavelength‐tunable optical filter structure. The analysis, which is based on the transfer matrix method, reveals that this filter can achieve a tuning range of 32 and 42 Å for grating coupling coefficients of 6 and 10 mm−1, respectively with an almost constant peak transmissivity (gain) of more than 30 dB. The side‐mode suppression ratio (SMSR) ranges from 12 to 30.21 dB. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 27: 171–175, 2000.
ISSN:0895-2477
1098-2760
DOI:10.1002/1098-2760(20001105)27:3<171::AID-MOP6>3.0.CO;2-K