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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 23 — Aug. 10, 2002
  • pp: 4904–4911

Adaptive beam steering implemented in a ferroelectric liquid-crystal spatial-light-modulator free-space, fiber-optic switch

Mathias Johansson, Sverker Hård, Brian Robertson, Ilias Manolis, Timothy Wilkinson, and William Crossland  »View Author Affiliations


Applied Optics, Vol. 41, Issue 23, pp. 4904-4911 (2002)
http://dx.doi.org/10.1364/AO.41.004904


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Abstract

Active alignment of a 1 × 8 free-space optical switch was studied experimentally. Optical signals, carried on single-mode fibers, were switched by a ferroelectric liquid-crystal-on-silicon spatial light modulator. Continuous measurement of the in-coupled power to the fibers provided feedback for the switch control. The switch automatically located and locked to the output fibers. An advantage with adaptive switches of a similar kind is relaxed geometrical tolerances in the switch assembly. Further, such switches can adapt to possible geometrical changes and light wavelength drift during operation.

© 2002 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(230.0230) Optical devices : Optical devices
(230.1950) Optical devices : Diffraction gratings
(230.6120) Optical devices : Spatial light modulators

History
Original Manuscript: April 23, 2001
Revised Manuscript: April 12, 2002
Published: August 10, 2002

Citation
Mathias Johansson, Sverker Hård, Brian Robertson, Ilias Manolis, Timothy Wilkinson, and William Crossland, "Adaptive beam steering implemented in a ferroelectric liquid-crystal spatial-light-modulator free-space, fiber-optic switch," Appl. Opt. 41, 4904-4911 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-23-4904


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References

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