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  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1987),
  • paper THI6

InGaAsP closely spaced dual-wavelength laser

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Abstract

The information carrying capacity of a lightwave transmission system can be increased using wavelength division multiplexing. In this scheme, instead of one laser beam, light at a few distinct wavelengths (or group of nonoverlapping wavelengths) generated by independent semiconductor lasers is combined (or multiplexed) into a single beam and transmitted through a fiber. We describe a new dual-wavelength laser structure where the emitting regions are sufficiently close so that the light at the two wavelengths can be directly coupled into a single-mode fiber without using a multiplexer.

© 1987 Optical Society of America

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