Femtosecond pulses at 50-W average power from an Yb:YAG planar waveguide amplifier seeded by an Yb:KYW oscillator

Leburn, C.G.; Ramírez-Corral, Cristtel Y.; Thomson, I.; Hall, D. R.; Baker, H. J.; Reid, Derryck T.

doi:10.1364/oe.20.017367

Cited by 11 publications

(11 citation statements)

References 16 publications

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“…When compared to previous experiments with a low-doped transversally single-sided pumped Yb:YAG planar waveguide amplifier, where 5 passes through a 13 mm long amplifier were necessary to obtain 12 dB of gain [29], the higher doping concentration and the better laser mode confinement in our fs-written waveguide permit an improved efficiency and amplification factor.…”

Section: (C) (D)]mentioning

confidence: 85%

High-power amplification of a femtosecond vertical external-cavity surface-emitting laser in an Yb:YAG waveguide

Jornod¹,

Wittwer²,

Kränkel³

et al. 2017

Opt. Express

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We present the amplification of a mode-locked vertical external-cavity surface-emitting laser (VECSEL) using an Yb:YAG crystalline waveguide as gain medium. The VECSEL seed laser operates at a center wavelength of 1030 nm and generates 300-fs pulses at a repetition rate of 1.77 GHz. An average seed power of 60 mW was launched onto a 8.3 mm long fs-laser written Yb:YAG waveguide pumped by 7.7 W from a 969-nm continuous-wave VECSEL. The amplifier achieves an average output power of up to 2.9 W, corresponding to an amplification factor of 17 dB. Due to gain narrowing, the pulse duration increases to 629 fs. Our results show that crystalline waveguides are a promising technique for the realization of compact multi-watt ultrafast amplifier systems.

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Section: (C) (D)]mentioning

confidence: 85%

High-power amplification of a femtosecond vertical external-cavity surface-emitting laser in an Yb:YAG waveguide

Jornod¹,

Wittwer²,

Kränkel³

et al. 2017

Opt. Express

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“…An APCVD-grown graphene layer was transferred to the upper surface of the waveguide and Q-switched output was obtained at average powers approaching 0.5 W [82]. An alternative approach to power scaling would be to adopt a master-oscillator-power-amplifier configuration, either using further high-power planar-waveguide amplifiers [83] or utilizing optical-fiber amplifiers [84].…”

Section: Discussionmentioning

confidence: 99%

Ultrafast High-Repetition-Rate Waveguide Lasers

Shepherd

Choudhary

Lagatsky

et al. 2016

IEEE J. Select. Topics Quantum Electron.

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“…In addition, the wide bandwidth of the Yb:YAG laser later allowed this technology to enable the amplification of 1030 nm femtosecond pulses to many tens of watts [148] , with relevance to high-throughput femtosecond laser machining.…”

Section: Planar Waveguide Lasersmentioning

confidence: 99%

A history of high-power laser research and development in the United Kingdom

Danson

White

Barr

et al. 2021

High Pow Laser Sci Eng

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The first demonstration of laser action in ruby was made in 1960 by T. H. Maiman of Hughes Research Laboratories, USA. Many laboratories worldwide began the search for lasers using different materials, operating at different wavelengths. In the UK, academia, industry and the central laboratories took up the challenge from the earliest days to develop these systems for a broad range of applications. This historical review looks at the contribution the UK has made to the advancement of the technology, the development of systems and components and their exploitation over the last 60 years.

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Femtosecond pulses at 50-W average power from an Yb:YAG planar waveguide amplifier seeded by an Yb:KYW oscillator

Cited by 11 publications

References 16 publications

High-power amplification of a femtosecond vertical external-cavity surface-emitting laser in an Yb:YAG waveguide

High-power amplification of a femtosecond vertical external-cavity surface-emitting laser in an Yb:YAG waveguide

Ultrafast High-Repetition-Rate Waveguide Lasers

A history of high-power laser research and development in the United Kingdom

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