Waveguide Isolator With Phase Mismatch |
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| Authors: | Kang Xie Jiang HM Zeng WY Ming Xie |
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| Affiliation: | Sch. of Optoelectron. Inf., UESTC, Chengdu, China; |
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| Abstract: | A novel optical waveguide isolator constructed from mode convertors with unsuppressed phase mismatch is proposed. The troublesome requirement of phase matching for transverse electric (TE)-transverse magnetic (TM) mode conversion is eliminated without degradation on the performances. It is found that a kind of self-phase compensation phenomenon occurs during TE-TM mode conversion that facilitates the operation of the isolator. An isolator based on this mechanism is designed and simulated. An isolation of -24.4 dB is obtained. |
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