High-numerical-aperture, contact-bonded, planar waveguides for diode-bar-pumped lasers

OPTICS COMMUNICATIONS

卷:160

Article

Shepherd, DP ; Bonner, CL ; Brown, CTA ; Clarkson, WA ; Tropper, AC ; Hanna, DC ; Meissner, HE

关键词: lasers;    waveguides;    diode-pumped lasers;    contact-bonding;    Nd : YAG;   

DOI  :  10.1016/S0030-4018(98)00653-1

来源: Elsevier

【 摘 要 】

We report on the design and fabrication of Nd:YAG planar waveguides suitable for in-plane, diode-bar pumping. Contact-bonded Nd:YAG on sapphire waveguides are shown to have high numerical aperture (0.46), low propagation loss (< 0.2 dB/cm), and good thermal properties necessary to make efficient diode-bar-pumped lasers and amplifiers. Coupling efficiencies of 73% and 60% have been demonstrated between a 20-W diode-bar and an 8-mu m and a 4-mu m thick planar waveguide, respectively, leading to 3.7 W of waveguide laser output. (C) 1999 Elsevier Science B.V. All rights reserved.

【 授权许可】

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