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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 22, Iss. 5 — May. 1, 2004
  • pp: 1358–

Analysis of Two Parallel Long-Period Fiber Gratings

Kin Seng Chiang, Florence Yuen Ming Chan, and Mei Nar Ng

Journal of Lightwave Technology, Vol. 22, Issue 5, pp. 1358- (2004)


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Abstract

A wavelength-selective coupler constructed with two parallel identical uniform long-period fiber gratings (LPFGs) is analyzed by the coupled-mode theory. The effects of introducing a longitudinal offset distance between the two gratings on the transmission characteristics of the coupler are discussed and the conditions for achieving a 100% coupling efficiency are highlighted. It is found that 100% coupling can be achieved with a practical grating length by using a proper grating design and a suitable index-matching surrounding medium. The theoretical results agree well with the experimental data.

© 2004 IEEE

Citation
Kin Seng Chiang, Florence Yuen Ming Chan, and Mei Nar Ng, "Analysis of Two Parallel Long-Period Fiber Gratings," J. Lightwave Technol. 22, 1358- (2004)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-22-5-1358

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