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13 February 2016 Comparison of cost and complexity for various 16-QAM transmitter structures in coherent optical systems
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Abstract
This article present several possible implementations for an optical square 16-QAM transmitter structures. Two efficient carrier phase estimation techniques with feed-forward structure have been tested in a real-time transmission and compared with each other to present the influence of phase noise; Blind Phase Search (BPS) and QPSK partitioning. 2.5 Gbit/s synchronous coherent 16-QAM data is transmitted and received in a real-time heterodyne setup with BER below FEC (7% overhead) threshold.
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Ali Al-Bermani and Reinhold Noé "Comparison of cost and complexity for various 16-QAM transmitter structures in coherent optical systems", Proc. SPIE 9774, Next-Generation Optical Communication: Components, Sub-Systems, and Systems V, 977404 (13 February 2016); https://doi.org/10.1117/12.2211264
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