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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 23, Iss. 9 — Sep. 1, 2006
  • pp: 2246–2250

Maximum fiber coupling efficiency and optimum beam size in the presence of random angular jitter for free-space laser systems and their applications

Morio Toyoshima  »View Author Affiliations


JOSA A, Vol. 23, Issue 9, pp. 2246-2250 (2006)
http://dx.doi.org/10.1364/JOSAA.23.002246


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Abstract

Free-space laser communication systems use optical-fiber-based technology such as optical amplifiers, receivers, and high-speed modulators. In these systems using single-mode fibers, the fiber coupling efficiency is one of the most significant issues to be solved. Optimum relationships between a focused optical beam and mode field size of the optical fiber in the presence of random angular jitter are discussed in relation to fiber-coupled optical systems. Maximum fiber coupling efficiency is analytically derived with the optimum Airy disk radius normalized by the mode field radius as a function of random angular jitter. The fade level of fiber-coupled signals at desired fade probability is investigated. It is shown that the average bit error ratio significantly degrades with the random angular jitter normalized by the mode field radius larger than about 0.3 when the Airy disk size is optimally selected.

© 2006 Optical Society of America

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(060.4510) Fiber optics and optical communications : Optical communications
(220.4830) Optical design and fabrication : Systems design
(350.6090) Other areas of optics : Space optics

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: December 6, 2005
Revised Manuscript: March 29, 2006
Manuscript Accepted: April 11, 2006

Citation
Morio Toyoshima, "Maximum fiber coupling efficiency and optimum beam size in the presence of random angular jitter for free-space laser systems and their applications," J. Opt. Soc. Am. A 23, 2246-2250 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-9-2246

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