Mid-infrared all-fiber gain-switched pulsed laser at 3 μm
Mid-infrared (MIR) fiber pulsed lasers are of tremendous application interest in eye-safe LIDAR, spectroscopy, chemical detection and medicine. So far, these MIR lasers largely required bulk optical elements, complex free-space light alignment and large footprint, precluding compact all-fiber struct...
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Institue of Optics and Electronics, Chinese Academy of Sciences
2020
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oai:doaj.org-article:50091683d53642d2b341a80b8aa22ffa2021-11-10T10:12:42ZMid-infrared all-fiber gain-switched pulsed laser at 3 μm2096-457910.29026/oea.2020.190032https://doaj.org/article/50091683d53642d2b341a80b8aa22ffa2020-05-01T00:00:00Zhttp://www.oejournal.org/article/doi/10.29026/oea.2020.190032https://doaj.org/toc/2096-4579Mid-infrared (MIR) fiber pulsed lasers are of tremendous application interest in eye-safe LIDAR, spectroscopy, chemical detection and medicine. So far, these MIR lasers largely required bulk optical elements, complex free-space light alignment and large footprint, precluding compact all-fiber structure. Here, we proposed and demonstrated an all-fiberized structured gain-switched Ho3+-doped ZBLAN fiber laser operating around 2.9 μm. A home-made 1146 nm Raman fiber pulsed laser was utilized to pump highly concentrated single-cladding Ho3+-doped ZBLAN fiber with different lengths of 2 m or 0.25 m. A home-made MIR fiber mirror and a perpendicular-polished ZBLAN fiber end construct the all-fiberized MIR cavity. Stable gain-switched multiple states with a sub-pulse number tuned from 1 to 8 were observed. The effects of gain fiber length, pump power, pump repetition rate and output coupling ratio on performance of gain-switched pulses were further investigated in detail. The shortest pulse duration of 283 ns was attained with 10 kHz repetition rate. The pulsed laser, centered at 2.92 μm, had a maximum average output power of 54.2 mW and a slope efficiency of 10.12%. It is, to the best of our knowledge, the first time to demonstrate a mid-infrared gain-switched Ho3+:ZBLAN fiber laser with compact all-fiber structure.Zhang XiaojinLi WeiweiLi JinXu HuiyingCai ZhipingLuo ZhengqianInstitue of Optics and Electronics, Chinese Academy of Sciencesarticlefiber lasermid-infraredgain-switchingOptics. LightQC350-467ENOpto-Electronic Advances, Vol 3, Iss 5, Pp 190032-1-190032-10 (2020) |
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fiber laser mid-infrared gain-switching Optics. Light QC350-467 |
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fiber laser mid-infrared gain-switching Optics. Light QC350-467 Zhang Xiaojin Li Weiwei Li Jin Xu Huiying Cai Zhiping Luo Zhengqian Mid-infrared all-fiber gain-switched pulsed laser at 3 μm |
description |
Mid-infrared (MIR) fiber pulsed lasers are of tremendous application interest in eye-safe LIDAR, spectroscopy, chemical detection and medicine. So far, these MIR lasers largely required bulk optical elements, complex free-space light alignment and large footprint, precluding compact all-fiber structure. Here, we proposed and demonstrated an all-fiberized structured gain-switched Ho3+-doped ZBLAN fiber laser operating around 2.9 μm. A home-made 1146 nm Raman fiber pulsed laser was utilized to pump highly concentrated single-cladding Ho3+-doped ZBLAN fiber with different lengths of 2 m or 0.25 m. A home-made MIR fiber mirror and a perpendicular-polished ZBLAN fiber end construct the all-fiberized MIR cavity. Stable gain-switched multiple states with a sub-pulse number tuned from 1 to 8 were observed. The effects of gain fiber length, pump power, pump repetition rate and output coupling ratio on performance of gain-switched pulses were further investigated in detail. The shortest pulse duration of 283 ns was attained with 10 kHz repetition rate. The pulsed laser, centered at 2.92 μm, had a maximum average output power of 54.2 mW and a slope efficiency of 10.12%. It is, to the best of our knowledge, the first time to demonstrate a mid-infrared gain-switched Ho3+:ZBLAN fiber laser with compact all-fiber structure. |
format |
article |
author |
Zhang Xiaojin Li Weiwei Li Jin Xu Huiying Cai Zhiping Luo Zhengqian |
author_facet |
Zhang Xiaojin Li Weiwei Li Jin Xu Huiying Cai Zhiping Luo Zhengqian |
author_sort |
Zhang Xiaojin |
title |
Mid-infrared all-fiber gain-switched pulsed laser at 3 μm |
title_short |
Mid-infrared all-fiber gain-switched pulsed laser at 3 μm |
title_full |
Mid-infrared all-fiber gain-switched pulsed laser at 3 μm |
title_fullStr |
Mid-infrared all-fiber gain-switched pulsed laser at 3 μm |
title_full_unstemmed |
Mid-infrared all-fiber gain-switched pulsed laser at 3 μm |
title_sort |
mid-infrared all-fiber gain-switched pulsed laser at 3 μm |
publisher |
Institue of Optics and Electronics, Chinese Academy of Sciences |
publishDate |
2020 |
url |
https://doaj.org/article/50091683d53642d2b341a80b8aa22ffa |
work_keys_str_mv |
AT zhangxiaojin midinfraredallfibergainswitchedpulsedlaserat3mm AT liweiwei midinfraredallfibergainswitchedpulsedlaserat3mm AT lijin midinfraredallfibergainswitchedpulsedlaserat3mm AT xuhuiying midinfraredallfibergainswitchedpulsedlaserat3mm AT caizhiping midinfraredallfibergainswitchedpulsedlaserat3mm AT luozhengqian midinfraredallfibergainswitchedpulsedlaserat3mm |
_version_ |
1718440100397842432 |