Performance characteristics of 1.5micron single frequency semiconductor laser with external waveguide Bragg reflector.
01 January 1988
Single frequency operation of 1.5micron semiconductor lasers was obtained by combining a regular Fabry-Perot laser with an external waveguide Bragg reflector. The laser is characterized by very pure single frequency operation, 1 MHz lindwidth, and greatly reduced frequency chirp under direct modulation. The laser has been tested in 1.7 Gbit/s transmission experiments over 82.5 km of fiber.