11 November 2008 Broadband optical directional full couplers based on Blackman function
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Proceedings Volume 7134, Passive Components and Fiber-based Devices V; 71342N (2008) https://doi.org/10.1117/12.803417
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China
Abstract
A mismatched optical coupler with waveguide weighted by the Blackman function is numerically investigated in the demand of short-length, C+L-band, low crosstalk, and process tolerance. Utilizing the full factorial design, the structure parameters of coupling waveguide are obtained by beam propagation method. In the condition of crosstalk of -33.5 dB, the mismatched optical coupler with proper selected waveguide structure parameters is found to have a coupling length of 2.80 mm in the transmission wavelength ranges of C+L-band (1.53~1.61 μm). Obviously, the selection and design of waveguide structure are very important to satisfy the qualities of a mismatched optical coupler for the demand of short-length, bandwidth, and low-crosstalk.
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Chi-Feng Chen, Chi-Feng Chen, Yun-Sheng Ku, Yun-Sheng Ku, } "Broadband optical directional full couplers based on Blackman function", Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 71342N (11 November 2008); doi: 10.1117/12.803417; https://doi.org/10.1117/12.803417
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