Abstract
We report an all-fiber ultra-short pulse burst laser operating at around 1.98 µm that is obtained through a nonlinear wavelength converter and Tm-doped fiber amplifier. A mode-locked Er-doped fiber laser was first built and then amplified in subsequent amplifiers to an average power of 1.3 W. Ultra-short pulse burst output was achieved through a pulse multiplier and a fiber-pigtailed acousto-optic modulator. It was then injected into an all-fiber nonlinear wavelength converter constructed from P-doped fiber and Tm-doped fiber, obtaining an ultra-short pulse burst laser of 540 mW around 1.98 µm. Its average output power was then amplified to 4.33 W in a Tm-doped fiber amplifier with an intra-burst pulse repetition frequency of 0.9 GHz, a burst repetition frequency of 200 kHz, and a duty cycle of 2%, corresponding to about 200 pulses within each burst. This 1.98 µm pulse burst laser has enormous potential to be applied in bio-medical areas.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Xing Luo, Yating Tang, Fanlong Dong, Jiachen Wang, Linpeng Yu, Peiguang Yan, Jinzhang Wang, Qitao Lue, Chunyu Guo, and Shuangchen Ruan
Opt. Lett. 48(7) 1790-1793 (2023)
Parviz Elahi, Hamit Kalaycioğlu, Önder Akçaalan, Çağri Şenel, and F. Ömer Ilday
Opt. Lett. 42(19) 3808-3811 (2017)
Jinzhang Wang, Shenghua Lin, Xiaoyan Liang, Mengmeng Wang, Peiguang Yan, Guohua Hu, Tom Albrow-Owen, Shuangchen Ruan, Zhipei Sun, and Tawfique Hasan
Opt. Lett. 42(18) 3518-3521 (2017)