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Your search keyword '"H. Riris"' showing total 2 results
Start Over Author "H. Riris" Database NASA Technical Reports
2 results on '"H. Riris"'

1. Measuring Mars Atmospheric Winds from Orbit

Author

Scott D Guzewich, J B Abshire, M M Baker, J M Battalio, T Bertrand, A J Brown, A Colaprete, A M Cook, D R Cremons, M M Crismani, A I Dave, M Day, M -C Desjean, M Elrod, L K Fenton, J Fisher, L L Gordley, P O Hayne, N G Heavens, J L Hollingsworth, D Jha, V Jha, M A Kahre, A SJ Khayat, A M Kling, S R Lewis, B T Marshall, G Martinez, L Montabone, M A Mischna, C E Newman, A Pankine, H Riris, J Shirley, M D Smith, A Spiga, X Sun, L K Tamppari, R M B Young, D Viudez-moreiras, G L Villanueva, M J Wolff, and R J Wilson

Subjects
Lunar And Planetary Science And Exploration
Published
2020

2. 1.6-μm Er:YGG Waveguide Amplifiers

Author

J I Mackenzie, S V Kurilchik, J J Prentice, J A Grant-Jacob, L G Carpenter, J C Gates, P G R Smith, H Riris, A W Yu, and R W Eason

Subjects
Geosciences (General)
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 pulsed-laser-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.

Published
2019
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