Lasers, Fiber Optics, and Communications

Multiwavelength ultrashort pulse generator using a diverging time-lens

[+] Author Affiliations
Xiangyu Jiang, Li Huo, Dong Wang, Xin Chen, Caiyun Lou

Tsinghua University, Tsinghua National Laboratory for Information Science and Technology, and State Key Laboratory of Integrated Optoelectronics, Department of Electronic Engineering, Room 3109, Rohm Building, Beijing 100084, China

Opt. Eng. 54(12), 126107 (Dec 17, 2015). doi:10.1117/1.OE.54.12.126107
History: Received July 9, 2015; Accepted November 9, 2015
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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.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Xiangyu Jiang ; Li Huo ; Dong Wang ; Xin Chen and Caiyun Lou
"Multiwavelength ultrashort pulse generator using a diverging time-lens", Opt. Eng. 54(12), 126107 (Dec 17, 2015). ; http://dx.doi.org/10.1117/1.OE.54.12.126107


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