High-Q microwave photonic filter with self-phase modulation spectrum broadening and third-order dispersion compensation | Zendy

Dan Zou | Zendy; Xiaoping Zheng | Zendy; Shangyuan Li | Zendy; Hanyi Zhang | Zendy; Bingkun Zhou | Zendy

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High-Q microwave photonic filter with self-phase modulation spectrum broadening and third-order dispersion compensation

Author(s) -

Dan Zou,

Xiaoping Zheng,

Shangyuan Li,

Hanyi Zhang,

Bingkun Zhou

Publication year - 2014

Publication title -

chinese optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.617

H-Index - 37

ISSN - 1671-7694

DOI - 10.3788/col201412.080601

Subject(s) - optics , self phase modulation , phase modulation , dispersion (optics) , modulation (music) , filter (signal processing) , compensation (psychology) , phase (matter) , photonics , microwave , physics , phase noise , nonlinear optics , computer science , laser , quantum mechanics , acoustics , computer vision , psychology , psychoanalysis

We propose and experimentally demonstrate a scheme of high-Q microwave photonic filter (MPF) using the techniques of self-phase modulation (SPM) spectrum broadening and third-order dispersion (TOD) com-pensation. The optical pulses from a mode-locking laser are spectrally broadened by the SPM in the highly nonlinear fiber. A wideband optical frequency comb with 365 spectral lines within 10-dB power variation from the highest spectral power is obtained. By applying a cubic phase modulation via a waveshaper, the effect of TOD which broadens the MPF passband is eliminated. The final implemented MPF has a Q-value as high as 296 and a tuning range of 700 MHz.

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