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Proceedings Paper

Optical frequency comb generator based on interference among parallel phase modulators
Author(s): Jun Wen; Ming Li; Ning Hua Zhu; Wei Li
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Paper Abstract

We propose an optical frequency comb (OFC) generator for ultra-flat and multiple frequency-spaced OFC. By appropriately set the amplitude and phase of radio frequency (RF) signals fed to the parallel phase modulators, an ultraflat OFC with multiple frequency spacing can be generated. Since the frequency spacing of the generated OFC can be multiplied, it can be much larger than the typical modulation bandwidth of electro-optic modulators. Previously reported ultra-flat and multiple frequency-spaced OFC generators suffer from complex and invalid configuration since they employed either more than one-stage modulators or single-stage modulators attached with other components such as optical switches, which suffer from light leakage and limited extinction ratio in practice. Compared with previously reported method, Our scheme has much simpler configuration since only single-stage parallel modulators are used. The operating conditions for generation of multiple frequency spacing and spectrum flattening are clarified. The concept is verified in numerical analysis for generation of N×25GHz-spaced OFC. Performance analysis of the proposed scheme is also investigated.

Paper Details

Date Published: 25 October 2018
PDF: 7 pages
Proc. SPIE 10822, Real-time Photonic Measurements, Data Management, and Processing III, 108220H (25 October 2018); doi: 10.1117/12.2503853
Show Author Affiliations
Jun Wen, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Ming Li, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Ning Hua Zhu, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Wei Li, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 10822:
Real-time Photonic Measurements, Data Management, and Processing III
Ming Li; Bahram Jalali; Keisuke Goda; Kevin K. Tsia, Editor(s)

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