Effect of an imperfect antireflection coating on a birefringent interleaver in an optical communications system

Shuping Wang; Chi-Hao Cheng; Yangqing Lu; Charles Wong

doi:10.1117/1.2783389

1 September 2007 Effect of an imperfect antireflection coating on a birefringent interleaver in an optical communications system

Shuping Wang, Chi-Hao Cheng, Yangqing Lu, Charles Wong

Author Affiliations +

Optical Engineering, Vol. 46, Issue 9, 095005 (September 2007). https://doi.org/10.1117/1.2783389

Abstract

The effect of an imperfect antireflection (AR) coating on a birefringent interleaver (an important optical communication component) and on an optical communications system containing such a birefringent interleaver is investigated. We demonstrate how the imperfect AR coating on the rhomb surfaces affects the birefringent interleaver's intensity spectrum and generates undesirable chromatic dispersion (CD) ripples for an interleaver that should be dispersion-free by design. Our results show that a rhomb with a close-to-perfect AR surface coating (T=99.8%) can still generate a ±30-ps/nm CD ripple, causing a nonnegligible power penalty in an optical communications system. We also demonstrate a simple and practical approach to reduce the CD ripple caused by the imperfect AR coating.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Shuping Wang, Chi-Hao Cheng, Yangqing Lu, and Charles Wong "Effect of an imperfect antireflection coating on a birefringent interleaver in an optical communications system," Optical Engineering 46(9), 095005 (1 September 2007). https://doi.org/10.1117/1.2783389

Published: 1 September 2007

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