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A Miniaturized Tunable Filter Based on a Fiber Bragg Grating Loaded by a Ceramic-Tube Microheater

  • PHOTONICS AND OPTOELECTRONICS
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Abstract

A miniaturized 1.55 μm tunable fiber Bragg grating (FGB) filter is proposed and successfully demonstrated using an aluminum ceramic-tube with a tungsten thick film sleeve microheater. Fine tuning of the Bragg reflective wavelength with 0.0135 nm/oC is achieved by adding the constant thermal distribution along the uniform FBG with a 0.3 nm bandwidth. Furthermore, a 1.5 nm linearly chirped reflection bandwidth is obtained by thermal gradient loading.

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Authors and Affiliations

  1. NTT Opto-electronics Laboratories, 9-11, Midori-cho 3-chome, Musashino, Tokyo, 180, Japan

    Yoshiaki Tachikawa, Sinji Nagaoka & Yoshio Suzuki

Authors
  1. Yoshiaki Tachikawa
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  2. Sinji Nagaoka
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  3. Yoshio Suzuki
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Correspondence to Yoshiaki Tachikawa.

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Tachikawa, Y., Nagaoka, S. & Suzuki, Y. A Miniaturized Tunable Filter Based on a Fiber Bragg Grating Loaded by a Ceramic-Tube Microheater. OPT REV 4, 442–443 (1997). https://doi.org/10.1007/s10043-997-0442-1

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  • DOI: https://doi.org/10.1007/s10043-997-0442-1

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