Performance and reliability study on high-power single-mode 980nm semiconductor laser pump

Tong Zhang; Xiaoyu Bai; Song Tang; Xiao Yuan; Guowen Yang

doi:10.1117/12.2691139

16 October 2023 Performance and reliability study on high-power single-mode 980nm semiconductor laser pump

Tong Zhang, Xiaoyu Bai, Song Tang, Xiao Yuan, Guowen Yang

Proceedings Volume 12792, Eighteenth National Conference on Laser Technology and Optoelectronics; 127920T (2023) https://doi.org/10.1117/12.2691139
Event: Eighteenth National Conference on Laser Technology and Optoelectronics, 2023, Shanghai, China

Abstract

We have developed a high-power, high-reliability single-mode 980nm semiconductor laser pump module for all-optical networks in the optical communication industry, including terrestrial long-distance optical fiber communication, submarine optical cables, and satellite communication. This module serves as the core key component of Erbium-Doped Fiber Amplifiers (EDFA). To achieve an 80% coupling efficiency, we utilized the 14-pin butterfly device packaging process, coupling our self-developed single-mode 980nm semiconductor laser chip with a specially designed wedge lens fiber. Fiber Bragg grating, and thermal management technology were employed to ensure stable lock wave performance within a temperature range of -40 to 75°C, and a working current of 900 to 1800 mA. The spectral width is <0.5nm, the side-mode rejection ratio exceeds 25 dB, and the in-band power ratio surpasses 95%. The module delivers a single-mode output power exceeding 1.3 W and exhibits a low power stability of no more than 3.5% at a low power of 30 mW. The module features high single-mode output power, low power stability, narrow spectral width, and high edge-mode rejection ratio. After 2000 hours of high-current aging test and reliability verification, all module samples still maintain stable output power, and passed the verification of Telcordia GR-468-CORE. The successful development of this product fills the gap in the field of high-power single-mode 980nm semiconductor laser pump modules in China. It is expected to play an important role in the fields of optical communication systems, laser sensing and scientific research applications.

Citation Download Citation

Tong Zhang, Xiaoyu Bai, Song Tang, Xiao Yuan, and Guowen Yang "Performance and reliability study on high-power single-mode 980nm semiconductor laser pump", Proc. SPIE 12792, Eighteenth National Conference on Laser Technology and Optoelectronics, 127920T (16 October 2023); https://doi.org/10.1117/12.2691139

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KEYWORDS

Semiconductor lasers

Reliability

Laser soldering

Packaging

High power lasers

Optical communications

Relative humidity

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