Share Email Print

Optical Engineering • new

Power efficient ultraflat optical frequency comb generation by cascading modulators
Author(s): Xu Xiao; Kan Wu; Siqi Liu; Jianping Chen
Format Member Price Non-Member Price
PDF $20.00 $25.00

Paper Abstract

A power efficient optical frequency comb (OFC) is highly desired for applications with limited power supply, e.g., microwave photonics applications in moving vehicles. An ultraflat OFC generation is demonstrated with 0.19-dB flatness, 15 comb lines, and 18.3-dBm total RF power consumption. The scheme is based on spectral convolution. A five-line comb with 0.06-dB flatness and 4.0-GHz spacing is first generated in an intensity modulator. Then the signal is injected to a phase-modulator driven by × 5 frequency of 20.0 GHz to obtain the ultraflat 15-line comb with 0.19-dB flatness. The comb spacing is adjustable by controlling the input frequency of microwave source within the bandwidth of phase-modulation. Our work demonstrates a power efficient approach to obtain ultraflat comb and may benefit microwave photonics applications requiring low-power consumption.

Paper Details

Date Published: 27 October 2017
PDF: 6 pages
Opt. Eng. 56(10) 106115 doi: 10.1117/1.OE.56.10.106115
Published in: Optical Engineering Volume 56, Issue 10
Show Author Affiliations
Xu Xiao, Shanghai Jiao Tong Univ. (China)
Kan Wu, Shanghai Jiao Tong Univ. (China)
Siqi Liu, Shanghai Jiao Tong Univ. (China)
Jianping Chen, Shanghai Jiao Tong Univ. (China)

© SPIE. Terms of Use
Back to Top