A tunable-transmission Sagnac Interferometer using an optical microfiber

Title
A tunable-transmission Sagnac Interferometer using an optical microfiber
Authors
임선도이성구이관일이상배
Issue Date
2010-08
Publisher
Japanese Journal of Applied Physics, Part 1- Regular Papers
Citation
VOL 49, NO 8, 082502-1-082502-4
Abstract
This paper deals with fabrication of an optical microfiber and demonstration of a Sagnac loop interferometer constructed with it. An optical microfiber with a diameter ~2 mm and loss ~0:03 dB/mm is manufactured by tapering a conventional single-mode fiber using a flame-brushing technique. A Sagnac interferometer is assembled by twisting the fabricated microfiber into a loop. The intertwisted section of the loop functions as a directional coupler whose coupling ratio is tunable by changing the twist rate. Transmission characteristics of the interferometer may allow us to use it as a potential photonic device such as a linear edge filter, an optical variable attenuator, or a gain flattening filter.
URI
http://pubs.kist.re.kr/handle/201004/38130
ISSN
0021-4922
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KIST Publication > Article
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