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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 1 — Jan. 1, 2000
  • pp: 124–128

Guided Wave Acousto-Optic and Electro-Optic Tunable Filter Designs with Relaxed Beam-Splitter Requirements

Henry F. Taylor and Ohannes Eknoyan  »View Author Affiliations


Applied Optics, Vol. 39, Issue 1, pp. 124-128 (2000)
http://dx.doi.org/10.1364/AO.39.000124


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Abstract

New designs for acousto-optic tunable filters and electro-optic tunable filters with the Mach–Zehnder configuration are proposed. The new designs differ from conventional designs in three respects: (1) polarizing beam splitters are not required, (2) the optical path difference for the waveguides between the beam splitters is a half-wavelength, and (3) the relative positions of the polarization coupling regions in the two waveguides are displaced in the propagation direction by half of the spatial period of the perturbation responsible for the coupling. Because the new designs provide an additional degree of freedom in achieving the required beam-splitter performance, they are expected to be much easier to fabricate than conventional filter designs with polarizing beam splitters.

© 2000 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(130.0130) Integrated optics : Integrated optics
(130.3120) Integrated optics : Integrated optics devices
(130.3730) Integrated optics : Lithium niobate

Citation
Henry F. Taylor and Ohannes Eknoyan, "Guided Wave Acousto-Optic and Electro-Optic Tunable Filter Designs with Relaxed Beam-Splitter Requirements," Appl. Opt. 39, 124-128 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-1-124

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