Half-mJ All-Fiber-Based Single-Frequency Nanosecond Pulsed Fiber Laser at 2-μm

被引：29

作者：

Fang, Qiang ^{[1
,2
]}

Shi, Wei ^{[1
,2
]}

Petersen, Eliot ^{[1
,3
]}

Kieu, Khanh ^{[2
]}

Chavez-Pirson, Arturo ^{[1
,2
]}

Peyghambarian, Nasser ^{[1
,2
]}

机构：

[1] NP Photon Inc, Tucson, AZ 85747 USA

[2] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA

[3] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 05期

基金：

美国国家科学基金会;

关键词：

Fiber amplifier; single-frequency lasers; 2-mu m nanosecond pulses; 2; MU-M; ENERGY; POWER; CONVERSION;

D O I：

10.1109/LPT.2011.2178824

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report a high energy, high peak power, all-fiber-based single-frequency similar to 15-ns pulsed laser source at similar to 1918.4 nm in master oscillator-power amplifier configuration. The pulsed fiber laser seed was achieved by directly modulating a continuous-wave single-frequency fiber laser using an electro-optic modulator driven by an arbitrary waveform generator to pre-shape the pulses before amplification to mitigate pulse steepening and dynamic gain saturation. One piece of large (25-mu m) core, polarization-maintaining highly thulium-doped germanate glass fiber was used in the power amplifier stage to boost the energy and the peak power of the 15-ns pulses to >0.5 mJ and >33 kW without any nonlinearities.

引用

页码：353 / 355

页数：3

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