Optical functional integrated unit and method for manufacturing thereof

摘要

It is provided that an optical functional integrated unit and a method for manufacturing thereof in which a positive optical device and a passive optical device including a silicon waveguide can be readily integrated. An optical functional integrated unit includes a semiconductor optical amplifier, a photonics device, a mounting board, pedestals and. The pedestals and are provided on the mounting board. The semiconductor optical amplifier is mounted on the pedestal and outputs a light from an active layer. The photonics device is mounted on the pedestal. The photonics device includes silicon waveguide to which the light output from the semiconductor optical amplifier is guided.

主权项

1. An optical functional integrated unit comprising:
a mounting board;
a first pedestal and a second pedestal that are provided on the mounting board;a positive optical device that is a semiconductor optical amplifier mounted on the first pedestal and configured to output a light from an active layer; anda passive optical device that is an external oscillator mounted on the second pedestal,wherein the passive optical device comprises:
a silicon waveguide through which the light output from the positive optical device is guided;a substrate;a first ring resonator that is formed on the substrate and optically connected to the silicon waveguide, the first ring resonator being configured by silicon;a second ring resonator that is formed on the substrate and optically connected to the silicon waveguide, the second ring resonator having a different diameter from the first ring resonator, the second ring resonator being configured by silicon;a mirror that is formed at an end opposite to an end at a side of the positive optical device;a first electrode that is formed on the first ring resonator;a second electrode that is formed on the second ring resonator;a first polarization-separation unit that separates a polarization-multiplexed and phase-modulated optical signal input from outside into a first TE component and a first TM component;a second polarization-separation unit that separates a laser light exiting from the mirror into a second TE component and a second TM component;a first interferometer that causes the first TE component to interfere with the second TE component to output two optical signals, the phases of the two optical signals being different by 90 degrees; anda second interferometer that causes the first TM component to interfere with the second TM component to output two optical signals, the phases of the two optical signals being different by 90 degrees.