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Rapid ultrafine-tunable optical delay line at the 1.55-mum wavelength.

Authors
  • Yang, W
  • Keusters, D
  • Goswami, D
  • Warren, W S
Type
Published Article
Journal
Optics letters
Publication Date
Dec 01, 1998
Volume
23
Issue
23
Pages
1843–1845
Identifiers
PMID: 18091932
Source
Medline
License
Unknown

Abstract

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 3micros 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.

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