Chinese Optics Letters, Volume. 22, Issue 4, 041407(2024)
Design of a high frequency accuracy heterodyne laser source working in a wide temperature range
Figures & Tables(6)
Fig. 1. (a) Thermal equilibrium state; (b) thermal equilibrium temperature of the laser free-running experiment; (c) comparison of the preset temperature and actual temperature of the laser cavity.
Fig. 2. (a) Laser beat frequency at different temperatures; (b) nonequilibrium power-locking principle; (c) variation in laser frequency with error signal.
Fig. 3. (a) Structural solution of laser; (b) frequency stabilization system.
Fig. 4. Beat frequency with ISL at different ambient temperatures. (a) −20.13°C, (b) −9.22°C, (c) 8.64°C, (d) 16.13°C, (e) 28.32°C, (f) 40.13°C.
Fig. 5. (a) Comparison of nonequilibrium power and equilibrium power frequency stabilization schemes; (b) beat frequencies of the other two lasers at different temperatures.
Table 1. Allan Variance of Laser Frequency Stabilization at Different Temperatures
View tableView in ArticleTable 1. Allan Variance of Laser Frequency Stabilization at Different Temperatures
Sampling Time/s Ambient Temperature/°C −20.13 −9.22 8.64 16.13 28.32 40.13 0.1 2.44 × 10−10 7.51 × 10−11 6.39 × 10−11 3.29 × 10−10 4.40 × 10−10 1.17 × 10−10 1 6.40 × 10−11 1.15 × 10−10 3.41 × 10−11 1.14 × 10−10 1.65 × 10−10 1.32 × 10−10 10 3.97 × 10−11 3.98 × 10−11 5.07 × 10−11 3.41 × 10−11 5.14 × 10−11 4.00 × 10−11 100 5.28 × 10−11 2.53 × 10−11 5.22 × 10−11 1.58 × 10−11 4.37 × 10−11 6.74 × 10−11 1000 6.12 × 10−11 2.85 × 10−11 3.17 × 10−11 2.52 × 10−11 5.44 × 10−11 2.33 × 10−11
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Hongxing Yang, Yan Wang, Ziqi Yin, Pengcheng Hu, Ruitao Yang, Jing Li. Design of a high frequency accuracy heterodyne laser source working in a wide temperature range[J]. Chinese Optics Letters, 2024, 22(4): 041407
Paper Information
Category: Lasers, Optical Amplifiers, and Laser Optics
Received: Oct. 10, 2023
Accepted: Jan. 6, 2024
Published Online: Apr. 26, 2024
The Author Email: Pengcheng Hu (hupc@hit.edu.cn)
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