| Popis: |
Due to the lack of supply of wavelength division multiplexer components and emerging communications protocols, single- mode fiber coarse wavelength division multiplexers (WDMs), multimode fiber WDMs, and single-mode fiber dense WDMs are being considered in the metropolitan core and metropolitan access networks. This paper describes the evolving specifications for WDMs placed in metropolitan transport equipment. Comparisons of WDM components from various technologies such as arrayed waveguides, bulk grating, thin film filters, and fiber bragg gratings will be presented.© (2001) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. |
