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Proceedings Paper

Segmented frequency offset compensation algorithm in coherent optical sub-sampling system
Author(s): Qingzhao Tan; Aiying Yang; Weirui Zhao; Lihui Feng
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Paper Abstract

An inter-partitioned FFT algorithm is proposed to estimate the difference between the frequency of local optical sampling pulse and the signal to be sampled in coherent optical sampling system. By dividing the sampled data into several parts, the frequency difference of each part is estimated using FFT, respectively. The experiment demonstrated that, with the inter-partitioned FFT algorithm, the measured Q factor of 32GB QPSK signal is improved by 6dB, and matched the results obtained by the commercially available optical signal analyzer (EXFO PSO-200).

Paper Details

Date Published: 5 August 2015
PDF: 6 pages
Proc. SPIE 9618, 2015 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 961813 (5 August 2015); doi: 10.1117/12.2193392
Show Author Affiliations
Qingzhao Tan, Beijing Institute of Technology (China)
Aiying Yang, Beijing Institute of Technology (China)
Weirui Zhao, Beijing Institute of Technology (China)
Lihui Feng, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 9618:
2015 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Xiaodi Tan; Kimio Tatsuno, Editor(s)

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