Review of recent progress on single-frequency fiber lasers

Abstract:In recent years, the exploitation of compact laser sources and amplifiers in fiber form has found extensive applications in industrial and scientific fields. The fiber format offers compactness, high beam quality through single-mode regime and excellent heat dissipation, thus leading to high laser reliability and long-term stability. The realization of devices based on this technology requires an active medium with high optical gain over a short length to increase efficiency while mitigating nonlinear optical effects. Multicomponent phosphate glasses meet these requirements thanks to the high solubility of rare-earth ions in their glass matrix, alongside with high emission cross-sections, chemical stability and high optical damage threshold. In this paper, we review recent advances in the field thanks to the combination of highly-doped phosphate glasses and innovative fiber drawing techniques. We also present the main performance achievements and outlook both in continuous wave (CW) and pulsed mode regimes.Keywords: fiber laser and amplifier; phosphate fiber; all-fiber master oscillator power amplifier (MOPA); rare-earth-doped fiber

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“…This configuration is generally preferred for the fabrication of single-frequency fiber lasers thanks to its compactness and robustness [63].…”

Section: Cw Single-frequency Phosphate Fiber Lasers and Amplifiersmentioning

confidence: 99%

Highly Doped Phosphate Glass Fibers for Compact Lasers and Amplifiers: A Review

et al. 2017

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“…Mid‐infrared (MIR) fiber lasers have the extensive application prospects in the fields of medical operation, remote sensing, and military weapon, etc . At present, the MIR emission, especially the emission at 2 μm can be realized from the Tm 3+ : 3 F 4 → 3 H 6 and Ho 3+ : 5 I 7 → 5 I 8 transitions.…”

Section: Introductionmentioning

confidence: 99%

Quantum‐dots‐precipitated rare‐earth‐doped glass for ultra‐broadband mid‐infrared emissions

et al. 2018

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Mid‐infrared (MIR) fiber lasers have wide application prospects and great commercial value in the fields of medical operation, remote sensing and military weapon, etc. At present, Tm3+‐doped glass can obtain broadband luminescence at 2 μm, the introduction of Ho3+ or Er3+ ions also shows a tunable MIR emission but with limited success. Herein, the rare‐earth (RE) doped glass with quantum dots (QDs) precipitation is proposed for achieving ultra‐broadband MIR emissions. The types and sizes of QDs are determined by the XRD and TEM, and their optical properties are further characterized by the absorption and emission spectra as well as the lifetime decay curves. It is found that the diameter of the QDs is gradually increased from 1.7 to 5.1 nm by increasing the heat‐treated temperature from 490°C to 530°C, respectively. Interestingly, an ultra‐broadband emission covering 1400‐2600 nm is achieved from the heat‐treated glass upon the excitation of 808 nm laser diode as a result of an overlapped emission from Tm3+ and PbS. All results suggest that these QDs‐precipitated RE‐doped glasses have important application prospects in ultra‐broadband MIR laser glass, glass fiber, and fiber lasers.

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“…High energy, high power, single-frequency nanosecond pulsed laser sources have seen broad applications in areas such as coherent lidar, remote sensing, and nonlinear frequency conversion [1][2][3]. Laser sources in all-fiber architecture as a practical technology have been widely investigated and developed due to the advantages on compactness, ruggedness and easy thermal management [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

High-energy 100-ns single-frequency all-fiber laser at 1064 nm

Shi

Tang

et al. 2018

Fiber Lasers XV: Technology and Systems

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A high-energy, single-frequency fiber laser with long pulse duration of 100 ns has been experimentally investigated in an all-fiber architecture. Only 34-cm long heavily Yb-doped phosphate fiber was employed in power scaling stage to efficiently suppress the Stimulated Brillouin effect (SBS). In the experiment, 0.47 mJ single pulse energy was achieved in power scaling stage at the pump power of 16 W. The pre-shaped pulse was gradually broadened from 103 to 140 ns during the amplification without shape distortion.

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Review of recent progress on single-frequency fiber lasers

Cited by 211 publications

References 174 publications

Highly Doped Phosphate Glass Fibers for Compact Lasers and Amplifiers: A Review

Highly Doped Phosphate Glass Fibers for Compact Lasers and Amplifiers: A Review

Quantum‐dots‐precipitated rare‐earth‐doped glass for ultra‐broadband mid‐infrared emissions

High-energy 100-ns single-frequency all-fiber laser at 1064 nm

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