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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 17, Iss. 6 — Jun. 1, 2000
  • pp: 919–926

High-average-power (>20-W) Nd:YVO4 lasers mode locked by strain-compensated saturable Bragg reflectors

D. Burns, M. Hetterich, A. I. Ferguson, E. Bente, M. D. Dawson, J. I. Davies, and S. W. Bland  »View Author Affiliations


JOSA B, Vol. 17, Issue 6, pp. 919-926 (2000)
http://dx.doi.org/10.1364/JOSAB.17.000919


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Abstract

Strain-compensated double InGaAs quantum-well saturable Bragg reflectors (SBR’s) with high damage thresholds have been developed for use as mode-locking elements in high-average-power neodymium lasers. Nd:YVO<sub>4</sub> lasers have been developed with these new SBR’s, which produce transform-limited pulses of 21-ps duration at 90 MHz and an average power of 20 W in a diffraction-limited output beam. The peak pulse power at an output power of 20 W was 10.6 kW. A comparison of the operating parameters of strained single and strain-compensated double-well SBR’s indicates that the damage threshold increased by a factor of at least 2–3. Long cavity laser variants were investigated to assess the limitations of further power scaling. At a repetition frequency of 36-MHz stable mode-locked pulses with peak pulse powers of 24.4 kW and pulse energies of 0.6 μJ could be generated.

© 2000 Optical Society of America

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.7090) Lasers and laser optics : Ultrafast lasers
(160.6000) Materials : Semiconductor materials

Citation
D. Burns, M. Hetterich, A. I. Ferguson, E. Bente, M. D. Dawson, J. I. Davies, and S. W. Bland, "High-average-power (>20-W) Nd:YVO4 lasers mode locked by strain-compensated saturable Bragg reflectors," J. Opt. Soc. Am. B 17, 919-926 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-6-919


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