High-power, longitudinally fiber-pumped, passively Q-switched Nd:YAG oscillator-amplifier

Peuser, P.; Platz, W.; Zeller, P.; Brand, Thomas; Haag, Matthias; Köhler, Bernd

doi:10.1364/ol.31.001991

Cited by 12 publications

(11 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the Frantz-Nodvik equation [16,17], the amplified pulse energy E out as a function of input signal pulse energy E in can be simulated as following: …”

Section: Resultsmentioning

confidence: 99%

High energy 523nm ND:YLF pulsed slab laser with novel pump beam waveguide design

Qian-Sheng

Zhu

et al. 2015

Optics Communications

View full text Add to dashboard Cite

“…Based on the Frantz-Nodvik equation [16,17], the amplified pulse energy E out as a function of input signal pulse energy E in can be simulated as following: …”

Section: Resultsmentioning

confidence: 99%

High energy 523nm ND:YLF pulsed slab laser with novel pump beam waveguide design

Qian-Sheng

Zhu

et al. 2015

Optics Communications

View full text Add to dashboard Cite

“…This component is necessary to adjust the onset of the oscillator pulse in relation to the pump pulse independently from the pump current, in order to achieve maximum amplification [22]. The resonator has a length of 90 mm and is formed by an outcoupling mirror (OC) with a radius of curvature of 2 m and a reflectivity of 60% at the laser wavelength.…”

Section: Experimental Layoutmentioning

confidence: 99%

“…The lengths of the corresponding four legs were restricted to about 20 cm in order to save sufficient free space for the wavelength converting part of the laser system. In comparison with the amplifier setup reported in [22], this meant a reduction of the distance between the multimirror system and the amplifier crystal, which eventually would cause severe problems with parasitic lasing of the amplifier. By increasing the apex angle of the V-shaped beam paths to a value of 8°, it was observed that the threshold of parasitic lasing for the amplifier raised to a value higher than 100 kW=cm 2 , which is the maximum applied pump intensity for the amplifier.…”

Section: Experimental Layoutmentioning

confidence: 99%

“…The laser system described in the following represents a combination of previous works of the authors on OPO technology with intracavity sum-frequency generation [21] and on fiber-coupled, diode-pumped MOPA configurations [22], with the special goals of miniaturizing overall size, weight, energy consumption, and cooling requirements. In these works it was demonstrated that intracavity sum-frequency mixing provides high optical conversion efficiency for the generation of UV radiation together with high beam quality, whereas longitudinal diode pumping of a MOPA in combination with passive Q-switching allows constructing a compact, efficient, robust laser source for the OPO.…”

Section: Introductionmentioning

confidence: 99%

“…The complete laser setup was planned not to exceed a footprint of 45 cm × 45 cm and an overall height of 10 cm. This condition, first of all, made it necessary to develop a Nd:YAG MOPA with much smaller dimensions than those described in [22]. This meant a smaller amplifier stage in particular, and that required some effort to circumvent optical feedback into the laser oscillator as well as parasitic lasing of the amplifier caused by extremely high inversion densities within such a compact optomechanical configuration.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Compact, passively Q-switched, all-solid-state master oscillator-power amplifier-optical parametric oscillator (MOPA-OPO) system pumped by a fiber-coupled diode laser generating high-brightness, tunable, ultraviolet radiation

Peuser¹,

Platz²,

Fix³

et al. 2009

Appl. Opt.

View full text Add to dashboard Cite

We report on a compact, tunable ultraviolet laser system that consists of an optical parametric oscillator (OPO) and a longitudinally diode-pumped Nd:YAG master oscillator-power amplifier (MOPA). The pump energy for the whole laser system is supplied via a single delivery fiber. Nanosecond pulses are produced by an oscillator that is passively Q-switched by a Cr(4+):YAG crystal. The OPO is pumped by the second harmonic of the Nd:YAG MOPA. Continuously tunable radiation is generated by an intracavity sum-frequency mixing process within the OPO in the range of 245-260 nm with high beam quality. Maximum pulse energies of 1.2 mJ were achieved, which correspond to an optical efficiency of 3.75%, relating to the pulse energy of the MOPA at 1064 nm.

show abstract

Lasers

Photonics

View full text Add to dashboard Cite

The LASER light source, whose name is based on "Light Amplification by Stimulated Emission of Radiation", is the most important device in almost all photonic applications. First built in 1960 [6.1-6.5] it allows the generation of light with properties not available from natural light sources. Modern commercially available laser systems allow output powers of up to 10 20 W for short times with good beam quality and of several kW in continuos operation, usually with less good beam quality. Very short pulses with durations smaller than 5 · 10 −15 s, wavelengths from a few nm in the XUV to the far IR with several 10 µm, pulse energies of up to 10 4 J and frequency stability's and resolutions of better 10 −13 can be generated. The laser prices range from $ 1 to many millions of dollars and their size from less than a cubic mm to the dimensions of large buildings.The good coherence and beam quality of laser light in combination with high powers and short pulses are the basis for many nonlinear interactions, but the laser is a highly nonlinear optical device itself, using nonlinear properties of materials as described in the previous chapters. Therefore, the fundamental laws treated in Chap. 2 for the description of light as well as the description of linear and nonlinear interactions of light with matter in Chaps. 3, 4 and 5 are the basis for the analysis of laser operation and its light properties. Therefore, the theoretical description of laser devices represents an application of these laws and can be presented in this chapter in a compact form. For details the related sections of the previous chapters should be consulted. The different lasers and their constructions, as well as the resulting relevant light and operation parameters, are described and the consequences for photonic applications are discussed. Finally, possible classifications are given and safety aspects are mentioned. For further reading see [M6, M16, M17, M23-M25, M27, M28, M30, M33, M43, M44, M49, M50, M58-M65].

show abstract

High-power, longitudinally fiber-pumped, passively Q-switched Nd:YAG oscillator-amplifier

Cited by 12 publications

References 4 publications

High energy 523nm ND:YLF pulsed slab laser with novel pump beam waveguide design

High energy 523nm ND:YLF pulsed slab laser with novel pump beam waveguide design

Compact, passively Q-switched, all-solid-state master oscillator-power amplifier-optical parametric oscillator (MOPA-OPO) system pumped by a fiber-coupled diode laser generating high-brightness, tunable, ultraviolet radiation

Lasers

Contact Info

Product

Resources

About