Optical module

摘要

An optical modulator includes: laser diodes disposed in parallel with each other, each laser diode having a different lasing wavelength; optical waveguides disposed in parallel with each other with first ends facing the laser diodes; an optical isolator inserted between the laser diodes and the optical waveguides and attenuating return light reflected from the optical waveguides toward the laser diodes; a lens focusing light emitted from the laser diodes onto the optical waveguides through the optical isolator; an optical switch selecting one of the light beams exiting from the optical waveguides; and an optical modulator modulating the light beam selected by and output from the optical switch.

主权项

1. An optical module comprising:
a plurality of laser diodes disposed in parallel with each other, each laser diode having a different lasing wavelength; a plurality of optical waveguides having first and second ends and disposed in parallel with each other, with the first end of each optical waveguide facing the laser diodes, wherein light from the laser diodes exits from the second ends of the optical waveguides as light beams; an optical isolator inserted between the laser diodes and the optical waveguides and attenuating return light reflected from the optical waveguides toward the laser diodes; a lens focusing light emitted from the laser diodes onto the optical waveguides through the optical isolator; an optical switch selecting one of the light beams exiting the second ends of the optical waveguides and outputting the light beam selected; an optical modulator modulating the light beam selected and output from the optical switch; and a wavelength monitor for monitoring wavelength of the light beam output from the optical switch, wherein the wavelength monitor is monolithically integrated with the optical modulator.