Laser diode assembly

特許 係属中 The invention discloses a laser diode assembly and semiconductor optical amplifier assembly. The laser diode assembly includes a mode-locked laser diode device, where a light output spectrum shows long-wavelength shift by self-phase modulation, an external resonator, and a wavelength selective element (82,92,94-97). A long wavelength component of a pulsed laser beam emitted through the external resonator from the mode-locked laser diode device is extracted by the wavelength selective element, and output to the outside.