1-W average power levels and tunability from a diode-pumped 2. 94-[mu]m[integral] Er:YAG oscillator

Journal Article · Sat Oct 15 00:00:00 EDT 1994 · Optics Letters; (United States)

DOI:https://doi.org/10.1364/OL.19.001627· OSTI ID:6833094

Hamilton, C E; Beach, R J; Sutton, S B; Furu, L H; Krupke, W F ^[1]

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1. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)

A tunable Er:YAG laser, side pumped by a quasi-cw InGaAs diode array, generates [gt] 500 mW of power at 2.936 [mu]m. The cavity is a 4-cm plano-concave resonator that uses total internal reflection on the pump face of the Er:YAG crystal to couple the diode emission into the resonating modes of the oscillator. Tuning is accomplished by angle tuning a 300-[mu]m-thick YAG etalon. The tuning range is 2.933--2.939 [mu]m. Thermal lensing limits the duty factor to 4% or 8%, depending on the Er:YAG crystal thickness (2 or 1 mm). A 2.5-cm-long resonator operates at an 11% duty factor and generates 1.3 W of average power.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6833094
• Journal Information: Optics Letters; (United States), Vol. 19:20; ISSN 0146-9592
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
SOLID STATE LASERS
DESIGN
PERFORMANCE
INFRARED RADIATION
TUNING
ELECTROMAGNETIC RADIATION
LASERS
RADIATIONS
426002* - Engineering- Lasers & Masers- (1990-)