METHOD OF FABRICATING AND OPERATING AN OPTICAL MODULATOR

摘要

A semiconductor device comprising a substrate; a monolithic gain region disposed on the substrate and operable to produce optical gain in response to current injection, including a first electrode over a first portion of the gain region having a first length L1, with a first current I1 being applied; and a second electrode over a second portion of the gain region having a second length L2, with a second current I2 being applied; wherein I1/L1 is greater than I2/L2.

主权项

1. A semiconductor device comprising:
a substrate; a monolithic gain region forming a first semiconductor region disposed on the substrate and operable to produce optical gain in response to current injection, including an optical waveguide layer extending from a first end of the substrate to a second end of the substrate opposite to the first end, the optical waveguide layer including an active layer formed on the upper surface of the substrate; a reflective mirror provided at one end of the optical waveguide layer, and an exit aperture on the other end of the optical waveguide layer for emitting optical energy; a first electrode over a first portion of the gain region having a first length L1, with a first current I1 being applied; a second electrode over a second portion of the gain region having a second length L2, with a second current I2 being applied; and wherein I1/L1 is greater than I2/L2.