20-W average power all-solid-state Nd:YVO4 laser passively mode-locked using a low-loss saturable Bragg reflector

David Burns; M. Hetterich; Allister I. Ferguson; Erwin A. Bente; Martin D. Dawson; J. I. Davies; Stephen W. Bland

doi:10.1117/12.382786

14 April 2000 20-W average power all-solid-state Nd:YVO₄ laser passively mode-locked using a low-loss saturable Bragg reflector

David Burns, M. Hetterich, Allister I. Ferguson, Erwin A. Bente, Martin D. Dawson, J. I. Davies, Stephen W. Bland

Author Affiliations +

Proceedings Volume 3929, Solid State Lasers IX; (2000) https://doi.org/10.1117/12.382786
Event: Symposium on High-Power Lasers and Applications, 2000, San Jose, CA, United States

Abstract

A high damage threshold, strain compensated, double quantum well InGaAs saturable Bragg reflector has been developed and successfully used to modelock a high average power, all- solid-state Nd:YVO₄ laser. A methodology for obtaining single transverse mode oscillation at high output powers was coupled with a `lens relay' approach to access practical cavity configurations. Ultrashort pulses of 21 ps duration were recorded at a repetition rate of 90 MHz and a diffraction limited average output power of greater than 20 W. By extending the laser resonator to give a pulse repetition rate of 36 MHz, a pulse duration of 25 ps was recorded and the Q-switching instability could be eliminated for all output power levels. In this configuration the peak power and pulse energy were in excess of 24 kW and 0.6 (mu) J respectively.

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David Burns, M. Hetterich, Allister I. Ferguson, Erwin A. Bente, Martin D. Dawson, J. I. Davies, and Stephen W. Bland "20-W average power all-solid-state Nd:YVO₄ laser passively mode-locked using a low-loss saturable Bragg reflector", Proc. SPIE 3929, Solid State Lasers IX, (14 April 2000); https://doi.org/10.1117/12.382786

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