Chinese Journal of Lasers, Volume. 47, Issue 7, 701022(2020)
Generation of Two-Channel Broadband Optical Frequency Comb Using Gain-Switched 850 nm-VCSEL Under Orthogonal Optical Injection
Fig. 2. Bifurcation diagrams of power extrema of X-PC and Y-PC outputs from a 850 nm-VCSEL versus modulation frequency fm when m is 0.75
Fig. 3. Time series and optical spectra of X-PC and Y-PC outputs of 850 nm-VCSEL when modulation parameters m=0.75 and fm=4.2 GHz, where the frequency zero corresponds the central frequency of free-running 850 nm-VCSEL in the optical spectra. (a) Time series of X-PC; (b) time series of Y-PC; (c) optical spectrum of X-PC; (d) optical spectrum of Y-PC
Fig. 4. Time series (first and second columns) and optical spectra (third and fourth columns) of X-PC and Y-PC outputs of VCSEL under frequency detuning Δv=10.0 GHz with different values of Einj. (a)-(d) Einj=0.004; (e)-(h) Einj=0.020; (i)-(l) Einj=0.048; (m)-(p) Einj=0.070
Fig. 5. Bandwidths of X-OFC and Y-OFC outputs of VCSEL and σPMSR as a function of Einj under Δv=10.0 GHz, m=0.75 and fm=4.2 GHz
Fig. 6. Distribution of OFC output from 850 nm-VCSEL in the parameter space of Einj and Δv under fm=4.2 GHz
Fig. 7. Optical spectra of X-PC and Y-PC outputs from 850 nm-VCSEL under Δv=10.0 GHz and m=0.75 with different fm and Einj values. (a)(b) Optical spectra of X-PC and Y-PC when fm and Einj are 3.8 GHz and 0.008, respectively; (c)(d) optical spectra of X-PC and Y-PC when fm and Einj are 5.2 GHz and 1.17, respectively
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Fan Li, Zheng Xiaomei, Xia Guangqiong, Wu Zhengmao. Generation of Two-Channel Broadband Optical Frequency Comb Using Gain-Switched 850 nm-VCSEL Under Orthogonal Optical Injection[J]. Chinese Journal of Lasers, 2020, 47(7): 701022
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Received: Jan. 15, 2020
Accepted: --
Published Online: Jul. 10, 2020
The Author Email: Zhengmao Wu (zmwu@swu.edu.cn)