High-power diode-laser-pumped CW solid-state lasers using stable-unstable resonators

Mudge, D.; Veitch, P. J.; Münch, J.; Ottaway, D. J.; Hamilton, M. W.

doi:10.1109/2944.585808

Cited by 21 publications

(14 citation statements)

References 43 publications

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“…1 Schematic of single-frequency oscillator and amplifier frequency laser achieved by using the resonance-detection technique in Q-Switching operation. Four zigzag Nd: YAG slabs were adopted in amplifier stage for minimizing thermal distortion and stress-induced birefringences which were used in many high-power solid-state laser designs [8][9][10]. The laser provides an output pulse energy of 800 mJ with pulse duration of 11 ns and near 3× diffraction-limited beam at a repetition of 100 Hz with optical-optical efficiency over 18%.…”

Section: Introductionmentioning

confidence: 99%

Conductively-cooled, high-energy, single-frequency diode pumped slab laser for space applications

wang

Zhou

et al. 2010

Appl. Phys. B

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A laser-diode-pumped high efficiency, high pulse energy and single-frequency oscillator and amplifier for potential space environment applications have been developed and demonstrated using conductively-cooled heat removal. A diode-pumped injection seeded single-frequency oscillator was achieved by using the resonance-detection technique in Q-Switching operation, and Nd: YAG zigzag slabs based on "pump on bounce" are used in power amplifier stage for high-efficiency pulse energy extraction. Output pulse energy of 800 mJ with 11 ns pulse duration is obtained at a repetition rate of 100 Hz, with a near 3× diffraction-limit beam and an optical-to-optical efficiency of 18%. The experimental result shows that the laser has compact structure, high efficiency, reliability, conductive cooling and can be used for space environments.

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Section: Introductionmentioning

confidence: 99%

Conductively-cooled, high-energy, single-frequency diode pumped slab laser for space applications

wang

Zhou

et al. 2010

Appl. Phys. B

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“…The high gain that can be achieved with diode-laser pumping has also allowed the development of cw Nd:YAG lasers that use unstable resonators. [1][2][3] To exploit this capability fully, the increased pumping required ultimately leads back to significant thermal loading and thermally induced birefringence, which depolarizes the laser mode and can cause poor efficiency. Slab gain media are often used to mitigate these effects, as they minimize the impact of thermally induced birefringence and have a higher stress induced fracture limit than rod configurations.…”

Section: Introductionmentioning

confidence: 99%

“…6 This is particularly relevant for the high gain cw laser heads that are necessary for use with unstable resonators. 1,3,7 This paper will investigate thermally induced birefringence in practical crystalline Nd:YAG slabs. While only Nd:YAG is considered here, the general principles can be applied to other crystals with a cubic lattice.…”

Section: Introductionmentioning

confidence: 99%

Thermally induced birefringence in Nd:YAG slab lasers

et al. 2006

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“…Since the slave laser should be compact to improve servo reliability, the former requirement often leads to a modulation frequency 50-150 MHz, and the technique thus requires an electro-optic modulator (EOM). For injection-locked chain architectures, in which a medium power injection-locked laser is used to injection-lock a high power slave laser [9], [13], [14], the EOM must be able to transmit relatively large CW powers without introducing intensity or polarization modulation. Alternatively, the phase-modulation side-bands could be imposed using a Mach-Zehnder interferometer that has a low-power EOM in one of its arms and uses a control system to minimize the power transmitted into one of the outputs of the recombination beamsplitter.…”

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confidence: 99%