| Autor: |
Jeong Hwan Song, Kyung Shik Lee, Yunkyung Oh |
| Zdroj: |
Journal of Lightwave Technology; Jan2007, Vol. 25 Issue 1, p350-358, 9p |
| Abstrakt: |
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 [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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