Thin film filter-embedded triplexing-filters based on directional couplers for FTTH networks.

Autor: Jeong Hwan Song, Kyoung-Youm Kim, Jaegeol Cho, Dongkyoon Han, Joohoon Lee, Yu Sheop Lee, Suntae Jung, Yunkyung Oh, Dong-Hoon Jang, Kyung Shik Lee
Zdroj: IEEE Photonics Technology Letters; Aug2005, Vol. 17 Issue 8, p1668-1670, 3p
Abstrakt: We designed and experimentally demonstrated a thin film filter (TFF)-embedded directional coupler-type triplexing-filter on the planar-lightwave-circuit platform. The triple-play multiplexing was significantly simplified by using one TFF. The 1.31- and 1.55-μm lights were designed to be divided after passing the directional coupler by half-cycle and full-cycle coupling actions, respectively. The 1.49-μm light was reflected by a TFF inserted in a trench on the directional coupler. The insertion losses of fabricated triplexing-filters were less than 2.0 dB with bandwidths of 20 nm. The newly proposed triplexing-filter provides a cost-effective high-performance solution for fiber-to-the-home networks. [ABSTRACT FROM PUBLISHER]
Databáze: Complementary Index