A 2 kW, 8 GHz-Linewidth Yb-Doped Polarization-Maintained Fiber Laser with Quasi-Flat-Top Pseudo Random Binary Sequence Phase Modulation for SBS Suppression

被引：7

作者：

Kim, Dong Joon ^{[1
]}

Koo, Joonhoi ^{[1
]}

Jun, Seung Won ^{[1
]}

Jeong, Hwanseong ^{[1
]}

Lee, Hwihyeong ^{[1
]}

Lee, Jung Hwan ^{[1
]}

Jo, Minsik ^{[1
]}

机构：

[1] Agcy Def Dev, Ground Technol Res Inst, Daejeon 34186, South Korea

来源：

NANOMATERIALS | 2023年 / 13卷 / 08期

关键词：

fiber laser; narrow linewidth; polarization-maintaining fiber; pseudo random binary sequence; NARROW-LINEWIDTH; HIGH-POWER; ALL-FIBER; AMPLIFIER; KILOWATT; SYSTEMS;

D O I：

10.3390/nano13081329

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrated a narrow-linewidth high-power Yb-doped polarization-maintaining (PM) fiber laser with near-diffraction-limited beam. The laser system consisted of a phase-modulated single-frequency seed source and four-stage amplifiers in the master oscillator power amplifier configuration. A quasi-flat-top pseudo random binary sequence (PRBS) phase-modulated single-frequency laser with a linewidth of 8 GHz was injected into the amplifiers for suppressing stimulated Brillouin scattering. The quasi-flat-top PRBS signal was readily generated from the conventional PRBS signal. The maximum output power was 2.01 kW with polarization extinction ratio (PER) of similar to 15 dB. The beam quality (M2) was less than 1.3 over the power scaling range.

引用

页数：9

共 41 条

[1]

Anderson B., 2017, FIBER LASERS, VVolume 10083, P156

[2] Comparison of phase modulation schemes for coherently combined fiber amplifiers [J].

Anderson, Brian ;

Flores, Angel ;

Holten, Roger ;

Dajani, Iyad .

OPTICS EXPRESS, 2015, 23 (21) :27046-27060

[3] Experimental investigations on the TMI thresholds of low-NA Yb-doped single-mode fibers [J].

Beier, Franz ;

Moeller, Friedrich ;

Sattler, Bettina ;

Nold, Johannes ;

Liem, Andreas ;

Hupel, Christian ;

Kuhn, Stefan ;

Hein, Sigrun ;

Haarlammert, Nicoletta ;

Schreiber, Thomas ;

Eberhardt, Ramona ;

Tuennermann, Andreas .

OPTICS LETTERS, 2018, 43 (06) :1291-1294

[4] 1.5 kW polarization-maintained Yb-doped amplifier with 13 GHz linewidth by suppressing the self-pulsing and stimulated Brillouin scattering [J].

Chang, Zhe ;

Wang, Yanshan ;

Sun, Yinhong ;

Peng, Wanjing ;

Ke, Weiwei ;

Ma, Yi ;

Zhu, Rihong ;

Tang, Chun .

APPLIED OPTICS, 2019, 58 (23) :6419-6425

[5] Spectral evolution and stimulated Brillouin scattering suppression in phase-modulated fiber amplifier [J].

Chu, Qiuhui ;

Lin, Honghuan ;

Tang, Chuanxiang ;

Jing, Feng ;

Tang, Xuan .

JOURNAL OF PHYSICS COMMUNICATIONS, 2018, 2 (04)

[6]

Dragic P.D., 2015, P C LAS EL BALT MD U, P1984

[7] Pseudo-random binary sequence phase modulation for narrow linewidth, kilowatt, monolithic fiber amplifiers [J].

Flores, Angel ;

Robin, Craig ;

Lanari, Ann ;

Dajani, Iyad .

OPTICS EXPRESS, 2014, 22 (15) :17735-17744

[8] Active phase and polarization locking of a 1.4 kW fiber amplifier [J].

Goodno, Gregory D. ;

McNaught, Stuart J. ;

Rothenberg, Joshua E. ;

McComb, Timothy S. ;

Thielen, Peter A. ;

Wickham, Michael G. ;

Weber, Mark E. .

OPTICS LETTERS, 2010, 35 (10) :1542-1544

[9] Increase of the SBS threshold in a short highly nonlinear fiber by applying a temperature distribution [J].

Hansryd, J ;

Dross, F ;

Westlund, M ;

Andrekson, PA ;

Knudsen, SN .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2001, 19 (11) :1691-1697

[10] Pump-modulation-induced beam stabilization in high-power fiber laser systems above the mode instability threshold [J].

Jauregui, Cesar ;

Stihler, Christoph ;

Tuennermann, Andreas ;

Limpert, Jens .

OPTICS EXPRESS, 2018, 26 (08) :10691-10704

← 1 2 3 4 5 →