A joule-class, TEM 00 spatial profile, narrow-linewidth laser system

Vaupel, Andreas; Bodnar, Nathan; Hemmer, Michaël; Richardson, Martin

doi:10.1117/12.881786

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…However, these techniques always induce additional cavity losses and the selected laser spectrum is usually with line-width of several nanometers. Volume Bragg gratings (VBGs) are ideal spectrum selectors with high diffraction efficiency, low insertion loss and narrow spectrum line-width on sub-nanometer scale [13,14]. Meanwhile, they have high damage threshold and excellent thermal stability in high power operations.…”

Section: Introductionmentioning

confidence: 99%

Widely tunable, narrow line-width Ho:CaYAlO_4 laser with a volume Bragg grating

Zhang

Shen

et al. 2016

Opt. Mater. Express

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We report on a widely tunable Ho:CYA laser resonantly pumped by a high power Tm:fiber laser at ~1922 nm. A volume Bragg grating is used as a resonator mirror for wavelength selection and spectrum narrowing. A wavelength tuning range of 2055-2100 nm with ~0.1 nm of spectrum line-width has been achieved. Output power of 7.4 W has been obtained at 2095 nm under an incident pump power of 32 W. In freerunning mode, over 11.3 W of output power at ~2085 nm has been generated under 40 W of incident pump power, corresponding to a slope efficiency of 30.7%.

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Section: Introductionmentioning

confidence: 99%

Widely tunable, narrow line-width Ho:CaYAlO_4 laser with a volume Bragg grating

Zhang

Shen

et al. 2016

Opt. Mater. Express

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“…One of well-known schemes of high-energy pulsed laser systems is master oscillator -power amplifier system. A master oscillator generates low-energy laser beam with high spatial and temporal quality [5,7]. A power amplifier (or many amplifiers) gives high energy laser output, but results in degradation of the beam quality.…”

Section: Introductionmentioning

confidence: 99%

High power Nd:YAG laser with self-pumped phase-conjugate loop cavity and repetitive pulsed diode-matrix side-pumping

Pogoda

Lebedeva

Yusupov

et al. 2013

XIX International Symposium on High-Power Laser Systems and Applications 2012

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The joule-range high-beam-quality Nd 3+ :YAG laser oscillation in the multiloop self-pumped phase-conjugate cavity without an output coupling mirror at four-wave mixing of intracavity beams directly in the 110-mm long Nd 3+ :YAG rod with 12.6 kW diode side-pumping is developed and studied. The oscillation efficiency of up to 18 % and average power of up to 22 W were achieved in the optimized geometry of the laser cavity at the 13.9 kW pumping with repetition rate of up to 20 Hz and pulse duration of up to 475 μs. The laser generated a single high-intensive 200-ns giant laser pulse (or series of such pulses with microsecond period at increased pumping) oscillated at self-Q-switch on gain gratings with relatively narrow linewidth of about 2 GHz followed by low-intensive free-running wideband lasing. We also realized a passive Q-switch by the F 2 -:LiF and Cr 4+ :YAG crystals with oscillation of pulse trains and also 30-ns single-pulse oscillation with an individual pulse energy of up to 60 mJ and peak power of up to 4 MW at narrowed laser spectra down to 1.7 GHz.

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A joule-class, TEM 00 spatial profile, narrow-linewidth laser system

Cited by 2 publications

References 8 publications

Widely tunable, narrow line-width Ho:CaYAlO_4 laser with a volume Bragg grating

Widely tunable, narrow line-width Ho:CaYAlO_4 laser with a volume Bragg grating

High power Nd:YAG laser with self-pumped phase-conjugate loop cavity and repetitive pulsed diode-matrix side-pumping

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