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Optics Letters

Optics Letters


  • Vol. 14, Iss. 21 — Nov. 1, 1989
  • pp: 1240–1242

Integrated-optic acoustically tunable reflection filter

D. A. Smith, J. J. Johnson, J. E. Baran, V. S. Shah, L. Curtis, and K. W. Cheung  »View Author Affiliations

Optics Letters, Vol. 14, Issue 21, pp. 1240-1242 (1989)

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We demonstrate a two-stage, integrated-optic, acoustically tunable filter formed by reflecting the output of a single-stage acousto-optic filter back through the filter by means of an integral mirror. Relative to a single-stage device, this double-pass configuration provides greatly improved sidelobe suppression (to approximately −20 dB) and a 72% reduction in filter bandwidth (to less than 0.9 nm at a wavelength of 1.52 μm). The performance of this device is shown to be equal to the far more difficult to fabricate cascaded pair of strictly matched acousto-optic filters.

© 1989 Optical Society of America

Original Manuscript: June 2, 1989
Manuscript Accepted: August 16, 1989
Published: November 1, 1989

D. A. Smith, J. J. Johnson, J. E. Baran, V. S. Shah, L. Curtis, and K. W. Cheung, "Integrated-optic acoustically tunable reflection filter," Opt. Lett. 14, 1240-1242 (1989)

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  1. B. L. Heffner, D. A. Smith, J. E. Baran, A. Yi-Yan, K. W. Cheung, Electron. Lett. 24, 1562 (1988). [CrossRef]
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