Direct phase control method for binary phase-shift keying space coherent laser communication

Weijie Ren; Jianfeng Sun; Peipei Hou; Ronglei Han; Hongyu He; Haisheng Cong; Chaoyang Li; Longkun Zhang; Yuxin Jiang

doi:10.3788/COL202220.060601

Chinese Optics Letters, Volume. 20, Issue 6, 060601(2022)

Direct phase control method for binary phase-shift keying space coherent laser communication

Weijie Ren^1,2, Jianfeng Sun^3、*, Peipei Hou¹, Ronglei Han^1,2, Hongyu He¹, Haisheng Cong^1,2, Chaoyang Li¹, Longkun Zhang¹, and Yuxin Jiang^1,2

Author Affiliations

¹Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

²Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

³Department of Aerospace Laser Engineering, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

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Figures & Tables(7)

Fig. 1. Schematic of the experimental device for direct phase control method.

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Fig. 2. Specific structure diagram of direct phase generation external modulation module.

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Fig. 3. Double phase difference curve before and after direct phase control method.

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Fig. 4. Partial image of double phase difference curve in Fig. 3: (a) left dashed box; (b) right dashed box.

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Fig. 5. Eye diagram of 2.5 Gbit/s baseband signal after phase locking.

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Fig. 6. BER versus received signal power for 2.5 Gbit/s.

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Table 1. Experimental Parameters
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Table 1. Experimental Parameters
Parameter Symbol Value
Laser wavelength $λ$ 1554.94 nm
Received signal power P_S −45 to −33 dBm
Communication rate R_b 2.5 Gbit/s
Line width (TX/RX) $Δ$ v 5000 Hz
Responsivity R 0.75 A/W
Power-splitting ratio k_S 0.5

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Weijie Ren, Jianfeng Sun, Peipei Hou, Ronglei Han, Hongyu He, Haisheng Cong, Chaoyang Li, Longkun Zhang, Yuxin Jiang, "Direct phase control method for binary phase-shift keying space coherent laser communication," Chin. Opt. Lett. 20, 060601 (2022)

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