A high power, continuous-wave, single-frequency fiber amplifier at 1091 nm and frequency doubling to 545.5 nm

We present a high power single-frequency ytterbium fiber amplifier system with an output power of 30 W at 1091 nm. The amplifier system consists of two stages, a preamplifier stage in which amplified spontaneous emission is efficiently suppressed (>40 dB) and a high power amplifier with an efficiency of 52%. Two different approaches to frequency doubling are compared. We achieve 8.6 W at 545.5 nm by single-pass frequency doubling in a MgO-doped periodically poled stoichiometric LiTaO3 crystal and up to 19.3 W at 545.5 nm by frequency doubling with a lithium-triborate crystal in an external enhancement cavity.

[1]  Benno Willke,et al.  Continuous-wave single-frequency 532 nm laser source emitting 130 W into the fundamental transversal mode. , 2010, Optics letters.

[2]  D. Kracht,et al.  Narrow-linewidth ytterbium-doped fiber amplifier system with 45 nm tuning range and 133 W of output power. , 2007, Optics letters.

[3]  A. B. Ruffin,et al.  502 Watt, single transverse mode, narrow linewidth, bidirectionally pumped Yb-doped fiber amplifier. , 2007, Optics express.

[4]  M. Fejer,et al.  Room-Temperature Stable Generation of 19 Watts of Single-Frequency 532-nm Radiation in a Periodically Poled Lithium Tantalate Crystal , 2008, Journal of Lightwave Technology.

[5]  K. Bartschat,et al.  Complementary imaging of the nuclear dynamics in laser-excited diatomic molecular ions in the time and frequency domains , 2014 .

[6]  Lu Xiuquan.  Ytterbium-doped Fiber Amplifiers:Selection of Pump Wavelength , 2000 .

[7]  A. Tünnermann,et al.  All-solid-state neodymium-based single-frequency master-oscillator fiber power-amplifier system emitting 5.5 W of radiation at 1064 nm. , 1999, Optics letters.

[8]  G. K. Samanta,et al.  High-power, single-frequency, continuous-wave second-harmonic-generation of ytterbium fiber laser in PPKTP and MgO:sPPLT. , 2009, Optics express.

[9]  Sunao Kurimura,et al.  Thermal effects in high-power CW second harmonic generation in Mg-doped stoichiometric lithium tantalate. , 2008, Optics express.

[10]  J. Limpert,et al.  100-W single-frequency master-oscillator fiber power amplifier. , 2003, Optics letters.

[11]  Kenji Kitamura,et al.  High power continuous-wave green light generation by quasiphase matching in Mg stoichiometric lithium tantalate , 2007 .

[12]  Martin Scheid,et al.  4W continuous-wave narrow-linewidth tunable solid-state laser source at 546nm by externally frequency doubling a ytterbium-doped single-mode fiber laser system. , 2007, Optics express.

[13]  John M. Fini,et al.  11.2 dB SBS gain suppression in a large mode area Yb-doped optical fiber , 2008, SPIE LASE.

[14]  J. Walz,et al.  Continuous Lyman-alpha generation by four-wave mixing in mercury for laser-cooling of antihydrogen , 2010, 1009.5480.

[15]  T. Hänsch,et al.  Continuous-wave Lyman-alpha generation with solid-state lasers. , 2009, Optics express.

[16]  Andrew D. Yablon,et al.  All-fiber 194 W single-frequency single-mode Yb-doped master-oscillator power-amplifier , 2007 .

[17]  F. Schmidt-Kaler,et al.  Rydberg excitation of trapped cold ions: a detailed case study , 2011, 1104.3102.

[18]  P. Skovgaard,et al.  Fiber Lasers V: Technology, Systems, and Applications , 2008 .

[19]  T. Walther,et al.  Ultranarrow-linewidth, efficient amplification of low-power seed sources by a fiber amplifier. , 1999, Applied optics.

[20]  G. Boyd,et al.  Parametric Interaction of Focused Gaussian Light Beams , 1968 .

[21]  J. Walz,et al.  Triple resonant four-wave mixing boosts the yield of continuous coherent vacuum ultraviolet generation. , 2012, Physical review letters.

[22]  C. Zimmermann,et al.  Laser spectroscopy of hydrogen and antihydrogen , 1993 .

[23]  Y. Jaouën,et al.  High power Yb/sup 3+/-doped double clad fibre amplification at 1127 nm: 977 against 920 nm pumping comparison , 2003 .

[24]  M C George,et al.  Trapped Antihydrogen in Its Ground State , 2012 .

[25]  D N Payne,et al.  Single-frequency, single-mode, plane-polarized ytterbium-doped fiber master oscillator power amplifier source with 264 W of output power. , 2005, Optics letters.