Cancellation of birefringence in DBR laser through principal axis offset by a rotation of 90°
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The cancellation of birefringence in the distributed Bragg reflector based on 90° rotation offset method is demonstrated. It is found that the birefringence, which causes the peak bifurcation has been eliminated and a single peak is produced at each resonance in the output spectrum. This modification is an economic solution for eliminating the birefringence of the optical fibre devices.
KeywordsBirefringence Fiber Bragg grating Distributed Bragg reflector
PACS Nos.42.25.Lc 42.79.Dj 42.79.Fm
This work is supported by FP033-2017A, and PR001-2015A.
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