Comparison of a diode pumped Er:YSGG and Er:YAG laser in the bounce geometry at the 3 μm transition | Zendy

E. A. Arbabzadah | Zendy; S. P. Chard | Zendy; Hemmel Amrania | Zendy; Chris C. Phillips | Zendy; M. J. Damzen | Zendy

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Comparison of a diode pumped Er:YSGG and Er:YAG laser in the bounce geometry at the 3 μm transition

Author(s) -

E. A. Arbabzadah,

S. P. Chard,

Hemmel Amrania,

Chris C. Phillips,

M. J. Damzen

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.025860

Subject(s) - laser , optics , materials science , diode , wavelength , slope efficiency , optoelectronics , laser diode , pulse (music) , pulse width modulation , diode pumped solid state laser , distributed feedback laser , fiber laser , physics , power (physics) , detector , quantum mechanics

A comparative study is made of the laser crystals 50 at. % Er:YAG and 50 at. % Er:YSGG. Both lasers are constructed in the bounce geometry with quasi continuous wave (QCW) diode pumping. In Er:YAG, pulse energies of up to ~31mJ, slope efficiency of 12.6% and a red-shift in laser wavelength are observed with a final and dominant wavelength of 2.936μm. In Er:YSGG, higher performance is achieved with pulse energies of ~55mJ, slope efficiency of 20.5% and a single transition wavelength of 2.797μm observed. The study indicates that diode pumped Er:YSGG is a superior laser source at 3μm than Er:YAG and it has greater energy storage potential for Q-switched operation.

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