A study of Stokes vector direct detection in short-reach optical communication

Yue Zhang; Jinnan Zhang; Yang'an Zhang; Yan Hong; Huihui Ma; Limeng Wang

doi:10.1117/12.2193089

5 August 2015 A study of Stokes vector direct detection in short-reach optical communication

Yue Zhang, Jinnan Zhang, Yang'an Zhang, Yan Hong, Huihui Ma, Limeng Wang

Proceedings Volume 9621, 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications; 96210G (2015) https://doi.org/10.1117/12.2193089
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

Abstract

We propose a detection scheme called Stokes vector direct detection (SV-DD) to realize high electrical spectral efficiency and cost-effective optical communication , which is more suitable than coherent detection for short-reach. At reception, the signal is detected in Stokes space.SV-DD is different from conventional DD technique in the parts of not requiring polarization tracking or narrow band optical filtering for carrier extraction. 2nd-order nonlinearity due to photodetection is a fundamental limitation for DD. The conventional SV-DD systems use 2*4 coupler in the receiver, it makes 2nd-order nonlinearity much serious since there are four photodetections or two balance photodetections. In this paper, we experimentally demonstrate the SVDD scheme in single-carrier system using a 3*3 coupler with three photodetections in the receiver.

Citation Download Citation

Yue Zhang, Jinnan Zhang, Yang'an Zhang, Yan Hong, Huihui Ma, and Limeng Wang "A study of Stokes vector direct detection in short-reach optical communication", Proc. SPIE 9621, 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications, 96210G (5 August 2015); https://doi.org/10.1117/12.2193089

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