Title :
Waveguide Isolator With Phase Mismatch
Author :
Xie, Kang ; Jiang, Hai M. ; Zeng, Wei Y. ; Xie, Ming
Author_Institution :
Sch. of Optoelectron. Inf., UESTC, Chengdu, China
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.
Keywords :
optical phase matching; optical waveguide components; mode convertors; optical waveguide isolator; phase mismatch; self-phase compensation phenomenon; Isolators; magneto-optic devices; nonreciprocal wave propagation; phase matching;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2029867
