Germanium (Ge) has played a key role in silicon photonics as an enabling material for
datacom applications. Indeed, the unique properties of Ge have been leveraged to develop …

Germanium/Silicon-Germanium (Ge/SiGe) multiple quantum wells receive great attention for
the realization of Si-based optical modulators, photodetectors, and light emitters for short …

We present a theoretical optimisation of 1D apodized grating couplers in a “pure” Silicon-On-
Insulator (SOI) architecture, ie without any bottom reflector element, by means of a general …

The paper reports on the developments of Ge/SiGe quantum well (QW) waveguide
modulators operating at 1.3 μm. Two modulator configurations have been studied: The first …

Electro-absorption from GeSi heterostructures is receiving growing attention as a high
performance optical modulator for short distance optical interconnects. Ge incorporation with …

An optoelectronic device and method of making the same. The device comprising: a
substrate; an epitaxial crystalline cladding layer, on top of the substrate; and an optically …

SiGe optical waveguide, each of the left and right optical waveguides including a junction
region and a plurality of electrodes for providing a bias across the junction to enable control …

A Mach-Zehnder waveguide modulator. In some embodiments, the Mach-Zehnder
waveguide modulator includes a first arm including a first optical waveguide, and a second …

2022-05-27 Assigned to WILMINGTON SAVINGS FUND SOCIETY, FSB, AS COLLATERAL
AGENT reassignment WILMINGTON SAVINGS FUND SOCIETY, FSB, AS COLLATERAL …

We report on the design and simulation of a waveguide-integrated Ge/SiGe quantum-
confined Stark effect (QCSE) optical modulator based on the use of a Ge-rich SiGe relaxed …