Analysis of modulator-induced higher-order harmonics influence on flat and stable optical comb generation based on re-circulating frequency shifter for all-optical OFDM

Lin Zhang; Yingxiong Song; Shujia Zhou; Yingchun Li; Jiajun Ye; Rujian Lin

doi:10.1364/ACP.2011.83091K

Optical Transmission Systems, Subsystems, and Technologies
Proceedings of SPIE (Optica Publishing Group, 2011),
paper 83091K
•https://doi.org/10.1364/ACP.2011.83091K

Analysis of modulator-induced higher-order harmonics influence on flat and stable optical comb generation based on re-circulating frequency shifter for all-optical OFDM

Lin Zhang, Yingxiong Song, Shujia Zhou, Yingchun Li, Jiajun Ye, and Rujian Lin

Asia Communications and Photonics Conference and Exhibition 2011

Shanghai China
13–16 November 2011
ISBN: 978-0-8194-8957-9

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Modulation, Detection, and Transmission II (MDTII)

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L. Zhang, Y. Song, S. Zhou, Y. Li, J. Ye, and R. Lin, "Analysis of modulator-induced higher-order harmonics influence on flat and stable optical comb generation based on re-circulating frequency shifter for all-optical OFDM," in Optical Transmission Systems, Subsystems, and Technologies, X. Liu, E. Ciaramella, N. Wada, and N. Chi, eds., Vol. 8309 of Proceedings of SPIE (Optica Publishing Group, 2011), paper 83091K.

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Abstract

The influence of higher-order harmonics produced in modulator on flat and stable optical comb generation based on recirculating frequency shifter (RFS) for all-optical OFDM is analyzed and demonstrated in this paper. We also theoretically analyze the condition for flatness of the optical frequency comb. The resulting theoretical analysis is confirmed by a 16 comb lines and 12.5 GHz spacing RFS generation system. The results demonstrate that flat and stable optical comb generation based on RFS can be a useful solution for multi-wavelength source in all-optical OFDM.

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