Title :
Hybrid optical star coupler suitable for wavelength reuse
Author :
Chae, Chang-Joon ; Park, Heesang ; Park, Youngil
Author_Institution :
Opt. Commun. Res. Sect., Korea Telecom Transmission Technol. Res. Lab., Taejeon, South Korea
Abstract :
A hybrid optical star coupler is proposed for wavelength-division multiplexed (WDM) star networks where a portion of wavelengths are reused. Local star couplers of n/sup 2//spl times/n/sup 2/ type are adopted to prevent ghost signals from being generated. An arrayed waveguide grating is also utilized to interconnect these couplers with low loss and for partial security. We experimentally investigated transmission performance and the result showed that interconnecting links require more power penalty than local links by 0.23 dB.
Keywords :
arrays; diffraction gratings; optical couplers; optical fibre networks; optical losses; optical waveguide components; optical waveguides; wavelength division multiplexing; WDM star networks; arrayed waveguide grating; ghost signals; hybrid optical star coupler; interconnecting links; local links; local star couplers; low loss; partial security; power penalty; transmission performance; wavelength reuse; wavelength-division multiplexed; Arrayed waveguide gratings; Optical coupling; Optical fiber networks; Optical interconnections; Optical receivers; Optical transmitters; Optical waveguides; Stimulated emission; WDM networks; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
