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Optics Letters

Optics Letters


  • Vol. 23, Iss. 23 — Dec. 1, 1998
  • pp: 1843–1845

Rapid ultrafine-tunable optical delay line at the 1.55-μm wavelength

Weiguo Yang, Dorine Keusters, Debabrata Goswami, and Warren S. Warren  »View Author Affiliations

Optics Letters, Vol. 23, Issue 23, pp. 1843-1845 (1998)

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A fast, ultrafine-tunable delay line at 1550 nm is demonstrated by use of acousto-optic pulse shaping. Delays of up to 30 ps can be achieved without any optical readjustment. The delay is linear to the rf center frequency applied to the acousto-optic modulator and is fully electronic. It takes only 3µs to switch between different time slots, irrespective of the time separation in the tuning range of 30 ps; for a smaller tuning range the tuning speed can be faster. The tuning resolution and range depend on the choice of system parameters. The pulse energy can be regulated by rf power.

© 1998 Optical Society of America

OCIS Codes
(060.2630) Fiber optics and optical communications : Frequency modulation
(060.4510) Fiber optics and optical communications : Optical communications
(070.2590) Fourier optics and signal processing : ABCD transforms
(230.1040) Optical devices : Acousto-optical devices
(250.0250) Optoelectronics : Optoelectronics
(320.5540) Ultrafast optics : Pulse shaping

Weiguo Yang, Dorine Keusters, Debabrata Goswami, and Warren S. Warren, "Rapid ultrafine-tunable optical delay line at the 1.55-μm wavelength," Opt. Lett. 23, 1843-1845 (1998)

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