Patent ID: 6038242
Filing Date: 2000-03-14
Classification: H01S

Abstract:
A multiwavelength light source for emitting light having multiple wavelengths, comprising:a carrier having a first end portion and a second end portion;a laser diode array mounted on said carrier, said laser diode array being formed by integrating a plurality of laser diodes having substantially the same oscillation wavelength;a first temperature control device operatively connected to said first end portion of said carrier, the temperature of said first temperature control device being controlled to a first temperature; anda second temperature control device operatively connected to said second end portion of said carrier, the temperature of said second temperature control device being controlled to a second temperature different from said first temperature;whereby a given temperature gradient is produced in said carrier over its entire width from said first end portion to said second end portion to thereby oscillate said plurality of laser diodes with a given wavelength spacing.