Frequency-Doubled Triangular Pulse Signal Generation with Variable Symmetry Based on a Dual-Polarization Quadrature Phase-Shift Keying Modulator

Chuangye Wang; Tigang Ning; Jing Li; Li Pei; Jingjing Zheng; Jianshuai Wang

doi:10.3788/LOP222005

Laser & Optoelectronics Progress, Volume. 60, Issue 15, 1506004(2023)

Frequency-Doubled Triangular Pulse Signal Generation with Variable Symmetry Based on a Dual-Polarization Quadrature Phase-Shift Keying Modulator

Chuangye Wang, Tigang Ning, Jing Li^*, Li Pei, Jingjing Zheng, and Jianshuai Wang

Author Affiliations

Key Laboratory of All Optical Network and Advanced Telecommunication Network of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China

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Figures & Tables(9)

Fig. 1. Structure diagram of proposed scheme

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Fig. 2. Function values of Bessel function of first kind

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Fig. 3. Generated temporal waveforms of triangular pulse signals with δ from 0% to 100%

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Fig. 4. Generated triangular pulse signal with δ =30%. (a) Corresponding electrical spectrum; (b) temporal waveform

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Fig. 5. Synthesis schematic diagram of generated triangular pulse signal with δ=30%

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Fig. 6. RMSE of triangular pulse signals with different symmetry coefficients generated by simulation

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Fig. 7. Generated square pulse signal. (a) Temporal waveform; (b) corresponding electrical spectrum

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Table 1. Conditions for generating triangular pulse signals with different symmetry coefficients

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Table 1. Conditions for generating triangular pulse signals with different symmetry coefficients

δ /%	θ₁	θ₂	θ₃	m₁	m₂
0	π/4	0	π/2	1.25	2.22
10	π/4	0	π/2	1.26	2.19
20	π/4	0	π/2	1.30	2.07
30	π/4	0	π/2	1.32	1.67
40	3π/8	π/4	0	1.07	1.81
50	0	π/4	0	0	1.95
60	π/8	π/4	0	1.07	1.81
70	π/2	0	π/2	1.32	1.67
80	π/2	0	π/2	1.30	2.07
90	π/2	0	π/2	1.26	2.19
100	π/2	0	π/2	1.25	2.22

Table 2. Conditions for generating square pulse signal
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Table 2. Conditions for generating square pulse signal
Pulse signal type θ₁ θ₂ θ₃ m₁ m₂
Square 0 0 π/2 0 2.22

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Chuangye Wang, Tigang Ning, Jing Li, Li Pei, Jingjing Zheng, Jianshuai Wang. Frequency-Doubled Triangular Pulse Signal Generation with Variable Symmetry Based on a Dual-Polarization Quadrature Phase-Shift Keying Modulator[J]. Laser & Optoelectronics Progress, 2023, 60(15): 1506004

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