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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 22, Iss. 2 — Feb. 1, 2005
  • pp: 347–353

Power-scalable phase-compensating fiber-array transceiver for laser communications through the atmosphere

Hans Bruesselbach, Shuoqin Wang, Monica Minden, D. Cris Jones, and Metin Mangir  »View Author Affiliations


JOSA B, Vol. 22, Issue 2, pp. 347-353 (2005)
http://dx.doi.org/10.1364/JOSAB.22.000347


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Abstract

We report laboratory experiments demonstrating a phase-compensating 70-mm-diameter aperture transceiver that comprises a hexagonally close-packed array of seven 23-mm-diameter fiber collimator subapertures. Other than the collimators, the transceiver uses only fiber optics, connected as a master oscillator-multiple amplifier. The master oscillator is a fiber-coupled 1.5-µm diode laser, which is split and fed to 1-W fiber amplifiers before it exits the collimators. To obtain a phase-coherent far field we control each subaperture's phase by adjusting the current to its amplifier's pump diodes in a multidither arrangement, maximizing the signal at the receiver. We achieve a diffraction-limited coherent beam combination in the far field that produces 1.4 W of power in the main lobe, in agreement with theory.

© 2005 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.4510) Fiber optics and optical communications : Optical communications

Citation
Hans Bruesselbach, Shuoqin Wang, Monica Minden, D. Cris Jones, and Metin Mangir, "Power-scalable phase-compensating fiber-array transceiver for laser communications through the atmosphere," J. Opt. Soc. Am. B 22, 347-353 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-2-347

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