An intra-cavity Raman laser using synthetic single-crystal diamond.
Low birefringence synthetic single-crystal diamond was used as a Raman laser medium inside a Q-switched Nd:YVO(4) laser. A maximum average output power of 375 mW was achieved at a wavelength of 1240 nm and a repetition rate of 6.3 kHz. This equates to a conversion efficiency of 4% from the diode laser to the first Stokes component at 1240 nm. Optical losses within the diamond (approximately 1% per single pass) limited the performance and are currently the main barrier to the demonstration of an efficient CW diamond Raman laser.
Lubeigt
Walter
W
Institute of Photonics, University of Strathclyde, Wolfson Centre, 106 Rottenrow, Glasgow G4 0NW, UK. walter.lubeigt@strath.ac.uk
Bonner
Gerald M
GM
Hastie
Jennifer E
JE
Dawson
Martin D
MD
Burns
David
D
Kemp
Alan J
AJ
D018130:Diamond; D004867:Equipment Design; D053844:Lasers, Solid-State; D013059:Spectrum Analysis, Raman / Q000295:instrumentation*
D018130:Diamond