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What are the latest advances in Thulium-doped fiber laser?

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Recent advances in Thulium-doped fiber laser (TDFL) technology include the development of dual-wavelength lasers with wide switchable single-wavelength ranges . Another advancement is the demonstration of individually switchable and tunable multiwavelength TDFLs, which can operate in at most sextuple wavelength states . Additionally, a single-oscillator monolithic TDFL has been developed, allowing for high-power emission at the uncommon 2.09 µm wavelength . Efficient TDFLs at the wavelength region of 1.7 μm have also been achieved by optimizing pump absorption and reducing re-absorption loss . Furthermore, a TDFL with bidirectional output and the potential application of a strain sensor have been demonstrated, showcasing the versatility of TDFLs in optical fiber sensing and communication systems .

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Journal Article•DOI Thulium-doped fiber laser with bidirectional output in a ring laser cavity Qi Qin, Fengping Yan, Yang Liu, Dan Cheng, Chenhao Yu, Dandan Yang, Xiangdong Wang, Youchao Jiang, Yuping Suo, Kazuo Kumamoto, Ting Feng - Show less +10 more 01 Nov 2022-Optics and Laser Technology 3 Citations	The latest advance in Thulium-doped fiber laser is the demonstration of bidirectional output with different lasing wavelengths and the potential application as a strain sensor.
Journal Article•DOI High-efficiency Thulium-doped fiber laser at 1.7 μm Lu Zhang, Junxiang Zhang, Quan Sheng, Shijie Fu, Wei Shi, Jianquan Yao - Show less +5 more 01 Aug 2022 5 Citations	The latest advance in Thulium-doped fiber laser is the demonstration of a high-efficiency laser at 1.7 μm using commercial silica Tm-doped fiber.
Open access•Journal Article•DOI High-Efficiency 2.09 μm Single-Oscillator Monolithic Thulium-Doped Fiber Laser 15 May 2023-IEEE Photonics Technology Letters	The latest advance in Thulium-doped fiber laser is the development of a single-oscillator monolithic laser that can emit 193 W at 2.09 µm.
Journal Article•DOI Wavelength-switchable dual-wavelength thulium-doped fiber laser utilizing photonic crystal fiber 01 Feb 2023-Optics Communications	The latest advance in Thulium-doped fiber laser is the demonstration of a dual-wavelength laser with a wide switchable single-wavelength range using a polarization-maintaining photonic crystal fiber.
Journal Article•DOI Switchable Multi-Wavelength Thulium-Doped Fiber Laser using a Two-Taper fiber filter Ting Li, Fengping Yan, Pengfei Wang, Xiangdong Wang, Yuping Suo, Hong Zhou - Show less +5 more 01 Jun 2022-Infrared Physics & Technology	The latest advance in Thulium-doped fiber laser is the development of a switchable and tunable multi-wavelength laser using a two-taper fiber filter.

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