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23 March 1995 Spectral optimization of optical wavelength filters
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Abstract
Appropriate apodization or tapering of the interaction strength in codirectional couplers leads to the suppression of sidelobe levels. It is shown that taper shape optimization may lead to sidelobe suppression on the order of - 125 db and lower. However, lower sidelobe levels are accompanied by a broadening of the passband width. It is shown that there are distinct coupler shapes which minimize the passband width for a desired sidelobe level. The theoretical results are shown to be in excellent agreement with beam propagation method simulations.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brent E. Little, Chi Wu, and Wei-Ping Huang "Spectral optimization of optical wavelength filters", Proc. SPIE 2402, Components for Wavelength Division Multiplexing, (23 March 1995); https://doi.org/10.1117/12.205278
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