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Analysis of a multisection and phase‐shift‐controlled DFB wavelength‐tunable optical filter
Author(s) -
Low Andy L. Y.,
GhafouriShiraz H.,
Chuah H. T.
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/1098-2760(20001105)27:3<171::aid-mop6>3.0.co;2-k
Subject(s) - materials science , wavelength , microwave , optics , filter (signal processing) , grating , phase (matter) , optoelectronics , transfer matrix method (optics) , optical communication , telecommunications , engineering , physics , electrical engineering , quantum mechanics
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.