Efficient lasing at 2.1 {mu}m in a Ho:YAG laserpumped by a Tm:YLF laser

Journal Article · Sun Feb 28 00:00:00 EST 2010 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2010V040N02ABEH014258· OSTI ID:21471046

Zakharov, N G; Sharkov, V V; Savikin, A P ^[1]; Antipov, Oleg L ^[2]

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1. N.I. Lobachevsky Nizhnii Novgorod State University, Nizhnii Novgorod (Russian Federation)
2. Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod (Russian Federation)

A laser based on a Ho:YAG crystal operating at a wavelength of {approx}2.1 {mu}m under pumping by Tm:YLF laser radiation with a wavelength of 1.908 {mu}m is studied. The laser operates in cw and repetitively pulsed regimes with a high beam quality (quality factor M{sup 2{<=}}1.2). The cw radiation power reached 15 W with the total optical efficiency of {approx}55 %. In the active Q-switched regime (achieved using an acousto-optic Q-switch), a highly stable repetitively pulsed lasing was obtained with a pulse repetition rate of 2.5-10 kHz, a pulse duration of 25-55 ns, and an average power up to 14.7 W. Using intracavity frequency selection, lasing was obtained at individual spectral lines in three wavelength regions, near 2.09, 2.097, and 2.123 {mu}m. (lasers)

• OSTI ID: 21471046
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 40, Issue 2; Other Information: DOI: 10.1070/QE2010v040n02ABEH014258; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CRYSTALS
FREQUENCY SELECTION
KHZ RANGE
LASER CAVITIES
LASER RADIATION
NEODYMIUM LASERS
OPTICAL PUMPING
PHOTON BEAMS
PULSES
Q-SWITCHING
QUALITY FACTOR
WAVELENGTHS
BEAMS
DIMENSIONLESS NUMBERS
ELECTROMAGNETIC RADIATION
FREQUENCY RANGE
LASERS
PUMPING
RADIATIONS
SOLID STATE LASERS
TUNING