Parabolic waveguide-type collimated lens and tunable external cavity laser diode including the same

摘要

The present invention is a single integrated tunable external resonator relates to a laser diode light source, a gain medium, the gain of the optical signal is generated, the parallel light lens of the semiconductor-based parabolic waveguide type, including this and parallel to the optical lens of the parabolic waveguide in the form of semiconductor-based , slab waveguide, and the electrically or thermally as to be controlled in the refractive index relates to a wavelength tunable external resonator laser diode light source consisting of a light deflector and the diffraction grating to change the direction of the beam incident on the diffraction grating, and these compound semiconductor single-material system or yi single integrated it is possible to silica (SiO _2), polymer, lithium niobate (LiNbO _3). Additionally, the compound semiconductor or a rare earth as a hybrid type (Rare-earth) a doped silica (SiO _2), rare earth (Rare-earth) is a polymer, a rare earth (Rare-earth) is doped with doping lithium niobate ( LiNbO ₃₎ implementing the gain medium and the parabolic waveguide in the form of parallel light lens and the silica (SiO _2), polymer, lithium niobate (LiNbO ₃₎ implemented in the optical deflector and the grating structure using a tunable external resonator laser diode light source. which relates to a composition and manufacturing method. ; Parabola waveguide parallel light lens, the wavelength variable light source, an external resonator, Littman-Metcalf, Littrow, the slab waveguide, the optical deflector