Ultrawidely tunable single-mode fiber acousto-optic filter

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A single-mode fiber (SMF) acousto-optic tunable filter (AOTF) with a tuning range of more than 300nm is demonstrated. The SMF used in the experiment has a ring of symmetric holes within the cladding, which causes a larger mode-index difference between the first and the second higher-order antisymmetric modes than those of a conventional SMF. As a result, the difference in beatlengths between the core mode and the higher-order modes is highly increased, which makes it possible for the SMF AOTF to exhibit a single resonance peak in the transmission spectrum over the wavelength range of 1: 3-1:6 mu m for given acoustic frequencies of 3: 1-3:8 MHz. (C) 2011 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2011-04
Language
English
Article Type
Article
Keywords

PHOTONIC CRYSTAL FIBER; GRATINGS

Citation

OPTICS LETTERS, v.36, no.7, pp.1101 - 1103

ISSN
0146-9592
URI
http://hdl.handle.net/10203/95313
Appears in Collection
PH-Journal Papers(저널논문)
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