Method and apparatus for narrow bandwidth distributed bragg reflector semiconductor lasers

A semiconductor laser comprising:

• a narrow bandwidth distributed Bragg reflector having a narrow wavelength range of a relatively high reflectivity response centered around a center wavelength, the narrow bandwidth distributed Bragg reflector to reflect photons having a wavelength within the narrow wavelength range;
• an active region over the narrow bandwidth distributed Bragg reflector, the active region formed to lase and emit photons at a wavelength within the narrow wavelength range and couple photons into the narrow bandwidth distributed Bragg reflector;
• and
• the narrow bandwidth distributed Bragg reflector to reflect photons having the wavelength within the narrow wavelength range back into the active region for amplification.

An edge emitting semiconductor laser comprising:

• a narrow bandwidth distributed Bragg reflector having a narrow wavelength range of a relatively high reflectivity response centered around a center wavelength, the narrow bandwidth distributed Bragg reflector to reflect photons having a wavelength within the narrow wavelength range;
• an active region over the narrow bandwidth distributed Bragg reflector, the active region formed to lase and emit photons at a wavelength within the narrow wavelength range and couple photons into the narrow bandwidth distributed Bragg reflector, the active region having a forty five degree angle facet at one end for reflection and a straight facet at another end to emit photons from the active region on an edge of the edge emitting laser;
• and
• the narrow bandwidth distributed Bragg reflector to reflect photons having the wavelength within the narrow wavelength range back into the active region for amplification.

A method of lasing in a semiconductor laser, the method comprising:

• electrically exciting the semiconductor laser to generate a plurality of photons over varying wavelengths in a laser cavity;
• steering the plurality of photons into a narrow bandwidth distributed Bragg reflector, the narrow bandwidth distributed Bragg reflector adjacent to the laser cavity;
• reflecting photons having a wavelength in a narrow wavelength range of the narrow distributed Bragg reflector back into the laser cavity;
• and
• emitting the photons having the wavelength in the narrow wavelength range out from the semiconductor laser.

A fiber optic communication system for transceiving information over optical fibers, the fiber optic communication system including:

• a semiconductor laser, the semiconductor laser having,
• a narrow bandwidth distributed Bragg reflector having a narrow wavelength range of a relatively high reflectivity response centered around a center wavelength, the narrow bandwidth distributed Bragg reflector to reflect photons having a wavelength within the narrow wavelength range;
• an active region over the narrow bandwidth distributed Bragg reflector, the active region formed to lase and emit photons at a wavelength within the narrow wavelength range and couple photons into the narrow bandwidth distributed Bragg reflector;
• and
• the narrow bandwidth distributed Bragg reflector to reflect photons having the wavelength within the narrow wavelength range back into the active region for amplification.