Compact, highly efficient, single-frequency 25 W, 2051 nm Tm fiber-based MOPA for CO2 trace-gas laser space transmitter

被引：2
|
作者：
Engin, Doruk [1 ]
Chuang, Ti [1 ]
Storm, Mark [1 ]
机构：
[1] Fibertek Inc, 13605 Dulles Technol Dr, Herndon, VA 20171 USA
来源：
FIBER LASERS XIV: TECHNOLOGY AND SYSTEMS | 2017年 / 10083卷
关键词：
Thulium; fiber amplifier; CO2; sensing; space; laser lidar;
D O I：
10.1117/12.2250516
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：
A cladding-pumped polarization maintaining (PM) Thulium (Tm) fiber-based amplifier optimized for high efficiency and high power operation at 2051 nm is presented. The two-stage amplifier has been demonstrated to achieve 25 W average power, >16 dB polarization extinction ratio (PER) out of a single-mode PM fiber using a <500 kHz linewidth Jet Propulsion Laboratory (JPL) distributed feedback (DFB) laser(1-3) and 43 dB gain. The power amplifier's optical conversion efficiency is 53%. An internal efficiency of 58% is calculated after correcting for passive losses. The two-stage amplifier sustains its highly efficient operation for a temperature range of 5-40(omicron)C. The absence of stimulated Brillouin scattering (SBS) for the narrow linewidth amplification shows promise for further power scaling.
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页数：3
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