조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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전류 조절로 파장 튜닝 가능한 편광상이 배치구조 기반 광섬유 빗살 필터

Current-Controlled Wavelength-Tunable Fiber Comb Filter based on Polarization-Diversity Loop Configuration

  • 최대호 (부경대학교 전기공학과) ;
  • 이용욱 (부경대학교 전기공학과)
  • 투고 : 2010.09.17
  • 심사 : 2010.10.22
  • 발행 : 2010.12.31
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초록

In this paper, we have demonstrated absolute wavelength tuning in an optical fiber comb filter based on a polarization-diversity loop configuration by controlling the current injected into enameled wires wound on polarization-maintaining fibers (PMF's), that is, adjusting Joule heat generated from enameled wires. The proposed fiber comb filter consists of a polarization beam splitter, a half-wave plate, a quarter-wave plate, and PMF's. And we observed wavelength change of spectral dips in transmission spectra of the fabricated filter by varying an input current applied to enameled wires. The absolute wavelength of the filter could be controlled in proportional to the square of the input current with good linearity, and the rate of the wavelength shift with respect to the input current was measured as 36.79[nm/$A^2$].

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참고문헌

  1. Y. W. Lee, K. J. Han, J. Jung, and B. Lee, “Polarizationindependent tunable fiber comb filter,” IEEE Photonics Technology Letters, vol. 16, no. 9, pp. 2066-2068, 2004. https://doi.org/10.1109/LPT.2004.832601
  2. Y. W. Lee, “Polarization-independent multiwavelengthswitchable filter based on polarization beam splitter and fiber coupler,” Journal of Electrical Engineering & Technology, vol. 4, no. 3, pp. 405-409, 2009. https://doi.org/10.5370/JEET.2009.4.3.405
  3. Y. Shiquan, L. Zhaohui, D. Xiaoyi, Y. Shuzhong, K. Guiyun, and Z. Qida, “Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber loop mirror,” IEEE Photonics Technology Letters, vol. 14, no. 6, pp. 774-776, 2002. https://doi.org/10.1109/LPT.2002.1003089
  4. Y. Han, S. Choi, S. H. Kim, and S. B. Lee, “Voltagecontrollable wavelength-selective optical switching based on multiply cascaded long-period fiber gratings,” Optics Letters, vol. 28, no. 21, pp. 2034-2036, 2003. https://doi.org/10.1364/OL.28.002034
  5. Y. Han, S. H. Kim, and S. B. Lee, “Flexibly tunable multichannel filter and bandpass filter based on long-period fiber gratings,” Optics Express, vol. 12, no. 9, pp. 1902-1907, 2004. https://doi.org/10.1364/OPEX.12.001902