Laser & Optoelectronics Progress, Volume. 62, Issue 1, 0114005(2025)
Noise Characteristic Analysis of a Vertical-Cavity Surface-Emitting Laser Array using External Cavity Feedback
Figures & Tables(6)
Fig. 1. Schematic diagram of external cavity VCSEL array with hexagonal arrangement
Fig. 2. Variation in RIN and PN of VCSEL array under different injection currents. (a) RIN; (b) PN
Fig. 3. Variation in RIN and PN of VCSEL array under different filling factors. (a) RIN; (b) PN
Fig. 4. Variation in RIN and PN of VCSEL array under different radii of source area. (a) RIN; (b) PN
Fig. 5. Variation in RIN and PN of VCSEL array under different external cavity lengths. (a) RIN; (b) PN
Table 1. Parameters used in the simulation calculation
View tableTable 1. Parameters used in the simulation calculation
Symbol Quantity Value λc Center wavelength /nm 980 τN Carrier lifetime /ns 2.6 τS Photon lifetime /ps 1.9 ε Gain compression factor /cm3 1×10-17 g0 Differential gain coefficient /cm2 5.1×10-16 α Linewidth enhancement factor 2 dw Thickness of quantum well /nm 8 nw Number of quantum well 3 Г Optical limiting factor 0.038 R1 Reflectance of bottom cavity mirror 0.99 R2 Reflectance of front cavity mirror 0.5 R3 Reflectance of external mirror 0.95 ROX Radius of light output aperture /μm 2 R Radius of source area /μm 4 D Center-to-center distance /μm 30
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Wanli Ma, Tian Lan, Jun Qi, Jinghao Zhang, Yiwen Lou, Fengjiao Qin, Feng Yang, Zhiyong Wang. Noise Characteristic Analysis of a Vertical-Cavity Surface-Emitting Laser Array using External Cavity Feedback[J]. Laser & Optoelectronics Progress, 2025, 62(1): 0114005
Paper Information
Category: Lasers and Laser Optics
Received: Mar. 27, 2024
Accepted: May. 14, 2024
Published Online: Dec. 17, 2024
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CSTR:32186.14.LOP240976
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