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Browse Prior Art Database

Mode-Locked Laser for Wavelength Division Multi-Access Network

IP.com Disclosure Number: IPCOM000034724D
Original Publication Date: 1989-Apr-01
Included in the Prior Art Database: 2005-Jan-27

Publishing Venue

IBM

Related People

Authors:
Dono, NR Green, PE [+details]

Abstract

A technique is described whereby a mode-locked laser for wavelength division multi-access networks generates the desired spectral comb of wavelengths in one operation. The concept simplifies previously described centralized wavelength division multi-access networking by replacing a large number of individual lasers with the mode-locked laser. The concept described herein is designed to be used in a number of wavelength division multi-access (WDMA) applications. It is particularly relevant to a centralized architecture, which not only centralizes most functions, but adds several methods of performing coherent homodyne detection. (Image Omitted) In a typical WDMA network, as shown in Fig. 1, each terminal transmitter sends on a different wavelength (under the command of the controller).