Investigation of diode-pump absorption efficiency and thermo-optical effects in a high-power Yb:KGW laser

Journal Article · Tue Mar 31 00:00:00 EDT 2015 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2015V045N03ABEH015684· OSTI ID:22551287

Kim, G H; Yang, J H; Lee, B; Sall, E G; Chizhov, S A; Kang, U ^[1]; Yashin, V E ^[2]

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1. RSS Center, Korea Electrotechnology Research Institute, Seoul (Korea, Republic of)
2. Federal State Unitary Enterprise ' Scientific and Industrial Corporation 'Vavilov State Optical Institute', St. Petersburg (Russian Federation)

Diode-pump absorption is experimentally studied in a high-power Yb:KGd(WO{sub 4}){sub 2} (Yb:KGW) laser in the presence and absence of lasing. The maximum absorption efficiency in the cw regime exceeds 77% which is by a factor of 1.4 greater than the maximum absorption efficiency in the absence of lasing. The powers of thermo-optical lenses induced in laser crystals during lasing are measured. A strong dependence of the lens power and aberrations on the orientation of laser crystals relative to the propagation direction and polarisation is confirmed. (lasers)

• OSTI ID: 22551287
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 45, Issue 3; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
CRYSTALS
DIODE-PUMPED SOLID STATE LASERS
EFFICIENCY
GRAIN ORIENTATION
POLARIZATION
TUNGSTATES