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Optical Engineering

Multiwavelength ultrashort pulse generator using a diverging time-lens
Author(s): Xiangyu Jiang; Li Huo; Dong Wang; Xin Chen; Caiyun Lou
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Paper Abstract

A self-starting optoelectronic oscillator that employs a diverging time lens and a Mach–Zehnder modulator (MZM) in a fiber-extended cavity to generate a multiwavelength ultrashort pulse train is demonstrated. The switching window formed by the MZM is narrowed by the use of a diverging time lens, which is a phase modulator in our study. A wavelength assignment scheme is deployed to simultaneously suppress the pedestals of pulses on different wavelengths. A detailed analysis is given, and the results are presented by experiment. We have generated 25 GHz optical pulses simultaneously on four wavelengths as a proof-of-concept demonstration. The pulse width of the optical pulse, the phase noise, and the timing jitter performance of the generated microwave signal are experimentally measured.

Paper Details

Date Published: 17 December 2015
PDF: 6 pages
Opt. Eng. 54(12) 126107 doi: 10.1117/1.OE.54.12.126107
Published in: Optical Engineering Volume 54, Issue 12
Show Author Affiliations
Xiangyu Jiang, Tsinghua Univ. (China)
Li Huo, Tsinghua Univ. (China)
Dong Wang, Tsinghua Univ. (China)
Xin Chen, Tsinghua Univ. (China)
Caiyun Lou, Tsinghua Univ. (China)

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