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1.6-μm Er:YGG waveguide amplifiers
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Paper Abstract

We report on the fabrication and characterization of Er:YGG films suitable for waveguide amplifiers that could in principle be used in integrated path differential absorption lidar systems. Presented is our fabrication technique, comprising pulsedlaser- deposition growth of ~10 μm-thick crystalline films, their channeling via ultraprecision ductile dicing with a diamond-blade, producing optical quality facets and sidewalls, and amplifier performance. Net gain at 1572 nm and 1651 nm is obtained for the first time in Er-doped YGG waveguide amplifiers. Additionally, in a channel waveguide a maximum internal gain of 3.5 dB/cm at the 1533nm peak was realized. Recent crystal film quality improvements promise further performance enhancements needed for the intended application for high-peak power sources in the 1.6-μm spectral region targeting Earth observation systems for monitoring greenhouse gases.

Paper Details

Date Published: 7 March 2019
PDF: 8 pages
Proc. SPIE 10896, Solid State Lasers XXVIII: Technology and Devices, 1089604 (7 March 2019); doi: 10.1117/12.2513665
Show Author Affiliations
J. I. Mackenzie, Univ. of Southampton (United Kingdom)
S. V. Kurilchik, Univ. of Southampton (United Kingdom)
J. J. Prentice, Univ. of Southampton (United Kingdom)
J. A. Grant-Jacob, Univ. of Southampton (United Kingdom)
L. G. Carpenter, Univ. of Southampton (United Kingdom)
J. C. Gates, Univ. of Southampton (United Kingdom)
P. G. R. Smith, Univ. of Southampton (United Kingdom)
C. B. E. Gawith, Univ. of Southampton (United Kingdom)
H. Riris, NASA Goddard Space Flight Ctr. (United States)
A. W. Yu, NASA Goddard Space Flight Ctr. (United States)
R. W. Eason, Univ. of Southampton (United Kingdom)


Published in SPIE Proceedings Vol. 10896:
Solid State Lasers XXVIII: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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