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Proceedings Paper

Low Loss Fiber Optic Directional Coupler
Author(s): D. B. Hall; M. H. Yu
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Paper Abstract

Four port single mode fiber optic directional couplers have been fabricated exhibiting coupler losses approaching 0.1% (.005 dB). A new experimental technique with an integrating sphere was used to measure these low losses. The couplers, which can be tuned for any coupling ratio, have coupled as much as 99.8% of the total input power in one fiber to another fiber. In this high coupling, low loss regime new polarization dependent effects were observed in the couplers.

Paper Details

Date Published: 17 September 1984
PDF: 5 pages
Proc. SPIE 0478, Fiber Optic and Laser Sensors II, (17 September 1984); doi: 10.1117/12.942667
Show Author Affiliations
D. B. Hall, Litton Industries (United States)
M. H. Yu, Litton Industries (United States)


Published in SPIE Proceedings Vol. 0478:
Fiber Optic and Laser Sensors II
Emery L. Moore; O. Glenn Ramer, Editor(s)

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