High performance 716 nm actively Q-switched Pr:ZBLAN fiber lasers

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-02-09 DOI:10.1016/j.optlastec.2025.112587

Bo Xiao, Ziang Xiong, Yue Wu, Xiaoliang Liu, Canlin Jiang, Zhuang Li, Huiying Xu, Zhiping Cai

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引用次数: 0

Abstract

Direct generation of deep-red lasers while preserving high output performance has become increasingly important for the applications in scientific research and industry. In this study, the efficient deep-red laser operation of a Pr³⁺-doped fluoride fiber directly pumped by a commercial blue laser diode (LD) is experimentally investigated at two different active fiber lengths. In the free-running cavity structure, we achieved a maximum continuous-wave (CW) output power of 185 mW at 716 nm with a slope efficiency of 54.57 %, which represents the highest direct output power recorded in a single clad Pr:ZBLAN fiber. Moreover, by utilizing an AOM, stable actively Q-switched lasers are successfully generated. Under the 1 kHz repetition rate, the pulse has a duration of 40 ns, a single-pulse energy of 40 μJ, and a peak power of 1 kW. To the best of our knowledge, this is the first demonstration of an actively Q-switched laser at a deep-red wavelength of 716 nm. We believe that this work could provide an appreciable alternative for the next generation of pulsed deep-red laser sources.

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems