Iain T McKinnie and Matthew J Davis 1997 Pure Appl. Opt. 6 759 doi:10.1088/0963-9659/6/6/018
Iain T McKinnie and Matthew J Davis
Show affiliationsTemporal characteristics of tuned and fixed-wavelength Cr:YAG gain-switched oscillators are presented for 1064 nm Nd:YAG laser excitation. Three temporal excitation regimes have been studied with the pump laser operating in free-running and Q-switched modes. Characteristic saturation and rollover behaviour of the Cr:YAG output energy with increasing pump energy is examined in terms of pump pulse duration, polarization orientation and fluence. Increased pump spot sizes yield higher values for the optimum pump energy and effective Cr:YAG energy scaling is demonstrated with only a slight threshold increase. A further enhancement in efficiency is obtained using 500 ns pump pulses. Control of the Cr:YAG pulse duration in the 160 - 300 ns range is obtained, using 6 - 80 ns pump pulses. The Cr:YAG laser output is shifted to the near infrared region using second harmonic generation in KTP.
Issue 6 (November 1997)
Received 13 December 1996, in final form 28 June 1997
Iain T McKinnie and Matthew J Davis 1997 Pure Appl. Opt. 6 759
D Rayner 1990 Class. Quantum Grav. 7 651
D Kim and R I Joseph 1974 J. Phys. C: Solid State Phys. 7 L167
M Matus et al 2002 Metrologia 39 83
W K Hensinger et al 2000 J. Opt. B: Quantum Semiclass. Opt. 2 659
Y Yamada et al 2000 Metrologia 37 71
R Donaldson 1954 Br. J. Appl. Phys. 5 210
B Tokhmechi et al 2009 J. Geophys. Eng. 6 365
Matjaž Perc and Attila Szolnoki 2007 New J. Phys. 9 267
F F T de Araujo and H M Rosenberg 1976 J. Phys. D: Appl. Phys. 9 1025