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Narrow Bandwidth Grating-Assisted Acousto-Optic Tunable Filter



E G. Paek, Joon Y. Choe, Tae K. Oh


An experimental acousto-optic tunable filter that has a narrow spectral bandwidth [0.2 nm at 1550 nm] and a fast [10 [mu]sec] tuning capability with a continuous tuning range of 52 nm is described. By combining a conventional diffraction grating with an acousto-optic beam deflector, spectral bandwidth has been significantly reduced and the number of usable wavelength channels within the erbium-doped fiber amplifier [EDFA] passband is increased by approximately 20 times. The filter also permits simultaneous and independent selection/routing of many wavelength channels for multi-channel wavelength division multiplexing [WDM] filters/routers/switches or fast scan optical spectrum analyses
- 6051
Report Number


acousto-optic tunable filters, networks, optical communications, wavelength-division multiplexing


Paek, E. , Choe, J. and Oh, T. (1998), Narrow Bandwidth Grating-Assisted Acousto-Optic Tunable Filter, - 6051, National Institute of Standards and Technology, Gaithersburg, MD (Accessed March 2, 2024)
Created January 1, 1998, Updated October 16, 2008