An efficient long-wavelength single-frequency DBR Tm<sup>3+</sup>-doped fiber laser at 2.1 μm based on 1610 nm in-band pumping

Abstract Based on a 2.0 cm long Tm 3+ -doped fiber (TDF) and in-band pumped configuration, an efficient long-wavelength single-frequency distributed Bragg reflector (DBR) fiber laser at 2097 nm is demonstrated experimentally. With delicate optimization of the TDF length and the pump wavelength to consider the effective cavity length and pump absorption, a stable single-longitudinal-mode laser output of 10.4 mW is achieved under 1610 nm in-band pumping. The measured optical signal-to-noise ratio of the fiber laser is more than 59 dB, the linewidth is less than 9.1 kHz, and the relative intensity-noise is below −130 dB Hz −1 for the frequencies above 4 MHz. To the best of our knowledge, this is the first demonstration of a single-frequency DBR Tm 3+ -doped fiber laser at a long operation wavelength of 2.1 μm.

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Publication Details

Journal
Applied Physics Express
Published
2025-04-16
DOI
https://doi.org/10.35848/1882-0786/adcdbc
Primary Topic
Advanced Fiber Optic Sensors
Type
article
Field-Weighted Citation Impact
0.00

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article

An efficient long-wavelength single-frequency DBR Tm3+-doped fiber laser at 2.1 μm based on 1610 nm in-band pumping

Changsheng Yang, Weichao Wang, Guowu Tang, Zhongmin Yang et al.
Applied Physics Express
Advanced Fiber Optic Sensors
article

An efficient long-wavelength single-frequency DBR Tm3+-doped fiber laser at 2.1 μm based on 1610 nm in-band pumping

Changsheng Yang, Weichao Wang, Guowu Tang, Zhongmin Yang, Pengxing Huang, Hui Huang, Kana Wu, Shanhui Xu, Xin Zhang, Qilai Zhao, Chun Zeng
article en

Abstract

Abstract Based on a 2.0 cm long Tm 3+ -doped fiber (TDF) and in-band pumped configuration, an efficient long-wavelength single-frequency distributed Bragg reflector (DBR) fiber laser at 2097 nm is demonstrated experimentally. With delicate optimization of the TDF length and the pump wavelength to consider the effective cavity length and pump absorption, a stable single-longitudinal-mode laser output of 10.4 mW is achieved under 1610 nm in-band pumping. The measured optical signal-to-noise ratio of the fiber laser is more than 59 dB, the linewidth is less than 9.1 kHz, and the relative intensity-noise is below −130 dB Hz −1 for the frequencies above 4 MHz. To the best of our knowledge, this is the first demonstration of a single-frequency DBR Tm 3+ -doped fiber laser at a long operation wavelength of 2.1 μm.

Applied Physics ExpressVol. 18(5)
Guangdong University of Technology (CN), Zhuhai Fudan Innovation Research Institute (CN), Zhuhai Institute of Advanced Technology (CN), South China University of Technology (CN)
National Natural Science Foundation of China, Special Project for Research and Development in Key areas of Guangdong Province, Basic and Applied Basic Research Foundation of Guangdong Province
Openalex Percentile: Top 94%
Advanced Fiber Optic Sensors
DOIOpen Access PDFOpenAlex
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