Title :
Ultra-high-density optical multi/demultiplexer using tandem configuration of primary and secondary AWGs
Author :
Takada, K. ; Abe, M. ; Shibata, T. ; Okamoto, K.
Author_Institution :
Photonics Labs., NTT Corp., Ibaraki, Japan
Abstract :
Summary form only given. The most effective way to expand network capacity is to increase the number of WDM channels, and a persistent demand has emerged for a large-scale multiplexer/demultiplexer with a narrow channel spacing that can support the maximum number of channels. We have found a way to extend the channel number beyond 1,000 by using a tandem configuration. This consists of a one l × N primary filter and a number of secondary 1 × N 10 GHz-spaced arrayed waveguide gratings (AWGs). The primary filter has flat-top passbands whose channel spacing is 1 THz. We connect one secondary AWG to each output port through an optical fiber
Keywords :
demultiplexing equipment; diffraction gratings; multiplexing equipment; optical arrays; optical waveguides; telecommunication channels; telecommunication traffic; wavelength division multiplexing; GHz-spaced arrayed waveguide gratings; WDM channels; channel number; channel spacing; flat-top passbands; large-scale multiplexer/demultiplexer; narrow channel spacing; optical fiber; output port; photonic networks; primary AWGs; primary filter; secondary AWGs; tandem configuration; ultra-high-density optical multi/demultiplexer; Channel spacing; Crosstalk; Demultiplexing; Optical fiber filters; Optical filters; Passband; Phase measurement; Phased arrays; Photonics; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969260
