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