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Optics Letters

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  • Vol. 23, Iss. 8 — Apr. 15, 1998
  • pp: 603–605

Digital operation of an ytterbium-doped two-mode fiber interferometric optical intensity switch

G. R. Atkins, Z. Brodzeli, and J. W. Arkwright  »View Author Affiliations


Optics Letters, Vol. 23, Issue 8, pp. 603-605 (1998)
http://dx.doi.org/10.1364/OL.23.000603


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Abstract

Digital operation of an all-optical intensity switch is demonstrated in a two-mode interferometer constructed from ytterbium-doped fiber. We clamp the resonantly enhanced phase shift responsible for the switching by allowing the fiber to lase, resulting in a bistable, digital response. The degree of phase shift at the clamping point can be controlled by adjustment of the laser threshold, and for complete switching (phase shift of π) the power length product PLπ was estimated to be 1.3 mW m . Isolation of 11 dB was observed, with switching speed limited by the relaxation time of ytterbium.

© 1998 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(160.5690) Materials : Rare-earth-doped materials
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(230.1150) Optical devices : All-optical devices

Citation
G. R. Atkins, Z. Brodzeli, and J. W. Arkwright, "Digital operation of an ytterbium-doped two-mode fiber interferometric optical intensity switch," Opt. Lett. 23, 603-605 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-8-603


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References

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