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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 25, Iss. 1 — Jan. 1, 2007
  • pp: 350–358

Triple Wavelength Demultiplexers for Low-Cost Optical Triplexer Transceivers

Jeong Hwan Song, Kyung Shik Lee, and Yunkyung Oh

Journal of Lightwave Technology, Vol. 25, Issue 1, pp. 350-358 (2007)

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We report triple wavelength demultiplexers adopting a thin-film filter (TFF) and a waveguide Bragg grating as a reflector for low-cost integrated optical triplexer transceivers deployed for the triple play service-based fiber-to-the-home (FTTH) networks. In the proposed demultiplexers, 1310- and 1550-nm lights were designed to be divided after passing the planar lightwave circuit-based directional coupler by half-cycle and full-cycle coupling actions, respectively. The 1490-nm light was reflected by a TFF or Bragg grating. The losses of the demultiplexers were less than 2.0 dB at all ports. The average crosstalk among the three lights for the demultiplexers was about 20 dB or better. Through a single reflector, the demultiplexer structures are significantly simplified, and cost is reduced. The proposed triple wavelength demultiplexers provide cost-effective and high-performance solutions for FTTH network systems.

© 2007 IEEE

Jeong Hwan Song, Kyung Shik Lee, and Yunkyung Oh, "Triple Wavelength Demultiplexers for Low-Cost Optical Triplexer Transceivers," J. Lightwave Technol. 25, 350-358 (2007)

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