Highly Efficient Fiber Lasers for Wireless Power Transmission, Phase I

Metadata Updated: May 2, 2019

We propose to develop ytterbium (Yb) fiber lasers with an electrical-to-optical efficiency of nominally 64% by directly coupling 80%-efficient diode lasers with Yb fiber laser structures that are capable of 80% optical-to-optical power conversion. These would be single spatial mode lasers, which are diffraction-limited light sources capable of long-range propagation in a narrow beam. As such they would provide a key technology element for wireless power transmission systems that are based on photovoltaic receiver technologies. The high efficiency diode lasers that form a key part of the proposed light source are currently being developed with DARPA funding under the Super High Efficiency Diode Sources (SHEDS) program. Yb fiber lasers have received a great deal of development effort in the broader laser community and have produced both the highest efficiencies and the highest output powers seen to date from fiber lasers. The innovation provided by this project would be the development of a simple, robust and highly efficient means of coupling the specific SHEDS diode structures to Yb fiber lasers by using laser micromachining to form an integral mirror and Brewster input port on the Yb fiber.

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_5224
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
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Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190501230127
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Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2005-07-01
Homepage URL https://techport.nasa.gov/view/5224
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash cec3da02486caa95c019cf82f7ff77446cda069d
Source Schema Version 1.1

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