DocumentCode
1120899
Title
9A4 - Laser action by enhanced total internal reflection
Author
Koester, Charles J.
Author_Institution
American Optical Company, Southbridge, Mass.
Volume
2
Issue
9
fYear
1966
fDate
9/1/1966 12:00:00 AM
Firstpage
580
Lastpage
584
Abstract
Oscillation and amplification have been observed in a fiber in which the core is passive glass and the cladding is neodymium-doped glass. As in conventional fiber optics, the refractive index of the core is greater than that of the cladding, so that light is carried in the core by total internal reflection. The results are interpreted as meaning that the reflection coefficient at the interface between passive core and laser cladding is greater than unity. Expressed in waveguide terminolgy, modes which are guided by the high index passive core, but have a substantial portion of their energy in the cladding, can be amplified by means of an active cladding.
Keywords
Fiber lasers; Glass; Laser feedback; Laser modes; Neodymium; Optical fibers; Optical reflection; Optical surface waves; Optical waveguides; Optimized production technology;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1966.1074097
Filename
1074097
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