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Optical Engineering

Investigation of microwave photonic filter based on multiwavelength phase modulation and spectral shaping
Author(s): Yuan Cao; Haiyan Shang; Xinhuan Feng; Zhaohui Li; Bai-Ou Guan
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Paper Abstract

An incoherent microwave photonic filter (MPF), based on multiwavelength phase modulation (PM) and a WaveShaper, is proposed and investigated. The multiwavelength erbium-doped fiber laser provides multiple taps, while the WaveShaper and a dispersive device perform PM to amplitude modulation (AM) conversion. The WaveShaper can also induce both spectral shaping effect for the taps and a different phase for radio-frequency signal during the PM-to-AM conversion. Principle analysis of MPF based on PM-to-AM conversion is discussed. Simulation is carried out to investigate the influence of WaveShaper parameters on the frequency response of the MPF. Through adjustment of the WaveShaper, MPFs with positive, negative, or complex coefficients are also obtained in the experiment. Experimental observations agree well with the simulation results and discussions are given.

Paper Details

Date Published: 2 November 2012
PDF: 5 pages
Opt. Eng. 51(11) 115002 doi: 10.1117/1.OE.51.11.115002
Published in: Optical Engineering Volume 51, Issue 11
Show Author Affiliations
Yuan Cao, Jinan Univ. (China)
Haiyan Shang, Shandong Univ. (China)
Xinhuan Feng, Jinan Univ. (China)
Zhaohui Li, Jinan Univ. (China)
Bai-Ou Guan, Jinan Univ. (China)

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