A wavelength- and loss-tunable band-rejection filter based on corrugated long-period fiber grating
Resource
IEEE Photonics Technology Letters 13 (4): 332-334
Journal
IEEE Photonics Technology Letters
Journal Volume
13
Journal Issue
4
Pages
332-334
Date Issued
2001
Date
2001
Author(s)
Lin, C.Y.
Abstract
We demonstrate a long-period fiber grating composed of an etched corrugated structure that can be used as a wavelength- and loss-tunable band-rejection filter. The tunabilities are based on the index modulation capable of being varied in the corrugated structure under externally applied mechanical forces. The new type of fiber filter enables wavelength and loss tuning ranges of more than 40 nm and 25 dB by adjusting the applied amounts of torsion and tensile forces, respectively.
Subjects
Corrugated structure; Fiber gratings; Tunable filters
Other Subjects
Fiber Bragg gratings; Optical fibers; Photosensitivity; Strain rate; Tensile stress; Torsional stress; Long-period fiber gratings (LPFG); Tunable filters; Notch filters
Type
journal article
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