✦ LIBER ✦

A novel variable optical attenuator and temperature sensor based on high-birefringence fiber-loop mirror

✍ Scribed by Y. Yan; Q. Zhao; S. Chen; L. Liu; H. Zhang; X. Dong

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 80 KB
Volume: 44
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.20604

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✦ Synopsis

Abstract

A novel variable optical attenuator (VOA) based on high‐birefringence (HiBi) fiber‐loop mirror is proposed. The HiBi fiber‐loop mirror is put into the temperature‐controlling box. As the temperature increases, the transmission spectrum shifts with nearly unaltered shape. The attenuation at 1558 nm is more than 30 dB with about 2.5‐dB insertion loss. Meanwhile, the wavelength shift with the temperature is vigorously linear. In this scheme, we propose a temperature sensor with fairly good linearity of 0.9997. Moreover, using theoretical analysis and numerical simulation, we explicitly explain our experimental results. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 259–261, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20604

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