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Optics Letters

Optics Letters


  • Vol. 25, Iss. 5 — Mar. 1, 2000
  • pp: 305–307

Broadband monolithic acousto-optic tunable filter

H. Gnewuch, N. K. Zayer, C. N. Pannell, G. W. Ross, and P. G. R. Smith  »View Author Affiliations

Optics Letters, Vol. 25, Issue 5, pp. 305-307 (2000)

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Broadband monolithic acousto-optic tunable filters that combine a piezoelectric transducer array and an acousto-optic interaction medium in a single crystal have been investigated. A linearly chirped acoustic superlattice with an optical tuning range of λ = 1.3–1.6 μm was formed by domain inversion in LiNbO3 . X-propagating longitudinal acoustic waves are excited in a crossed-field scheme by a rf Ey field applied to the superlattice and couple collinearly propagating e- and o-polarized optical modes. At μ = 1.319 μm and μ = 1.55 μm the spectral bandwidths (FWHM) were 1.54 and 2.3 nm, respectively. A relative conversion efficiency of 43%/W and a maximum conversion efficiency of 51% were measured at 1.319 μm.

© 2000 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(230.0230) Optical devices : Optical devices
(230.1040) Optical devices : Acousto-optical devices
(260.0260) Physical optics : Physical optics
(260.1180) Physical optics : Crystal optics
(260.5430) Physical optics : Polarization

H. Gnewuch, N. K. Zayer, C. N. Pannell, G. W. Ross, and P. G. R. Smith, "Broadband monolithic acousto-optic tunable filter," Opt. Lett. 25, 305-307 (2000)

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