High-power InGaAs/GaAs VCSEL's two-dimension arrays

Li Te; Yongqiang Ning; Yanfang Sun; Zhenhua Jin; Liu Yun; Li-jun Wang

doi:10.1117/12.667173

23 December 2005 High-power InGaAs/GaAs VCSEL's two-dimension arrays

Li Te, Yongqiang Ning, Yanfang Sun, Zhenhua Jin, Liu Yun, Li-jun Wang

Proceedings Volume 6028, ICO20: Lasers and Laser Technologies; 602816 (2005) https://doi.org/10.1117/12.667173
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

Selectively oxidized InGaAs/GaAs vertical-cavity surface-emitting lasers (VCSEL) array at an emission wavelength of 980nm was reported. A 16 elements array with 200μm aperture size (250μm center spacing) of individual elements shows a CW output power of 1.21W at room temperature, resulting in 1KW/cm² average optical power density. The device threshold current is 1.32A The lasing peak wavelength is 981.9 nm, the full width at half-maximum is 0.7 nm, and the far-field divergence angle is about 17^o.The characteristics of a single device with a active region diameter of 800μm is compared with that of a 2-D array with active region diameter of individual element of 200μm. These two kinds of devices have the same total lasing area. At the same current injection, the single device has a higher threshold and a higher output power than the array. The red shift of single device is more obvious than that of the array's.

Citation Download Citation

Li Te, Yongqiang Ning, Yanfang Sun, Zhenhua Jin, Liu Yun, and Li-jun Wang "High-power InGaAs/GaAs VCSEL's two-dimension arrays", Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 602816 (23 December 2005); https://doi.org/10.1117/12.667173

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