Phosistor Technologies, Incorporated

Nanyang Technological University

Acoustical Technologies Singapore Pte. Ltd.

Shide Cheng

Yan Zhou

Seng-Tiong Ho

Yee Loy Lam

Woon Siong Gan

Chan Hin Kam

A surface acoustic wave device that can operate in alternate-phase mode and single-phase mode, and thus generate surface acoustic waves at two different frequencies. The device is based on a piezoelectric film deposited on an elastic substrate, and includes an electrode layer patterned as two interdigital electrodes and electrical source (). The device is operated in alternate-phase mode by connecting the two electrodes to different ends of an electrical source (). The device is operated in single-phase mode by connecting the two electrodes to the same end of an electrical source.

Surface acoustic wave device

Optical modules and methods for making optical modules are described. In one embodiment, an optical module includes a substrate assembly including a photonic chip mounting region, and a groove extending towards the photonic chip mounting region. A waveguide is disposed within the groove. A plurality of spacers is on the chip mounting region, each spacer having a predetermined height. A photonic chip is placed on the plurality of spacers and above the chip mounting region, and an optical coupler is between the photonic chip and the waveguide.

Optical beam transformer module for light coupling between a fiber array and a photonic chip and the method of making the same

In a connection between an optical fiber or optical fiber array and an integrated optical waveguide or integrated optical waveguide array mounted or fabricated on a grooved substrate, an end face of an optical fiber array has a first facet and a second facet. The first facet has an inclination angle substantially equal to the inclination angle of an end wall of the substrate groove; the second facet has an inclination angle substantially equal to the inclination angle of the end face of the integrated optical waveguide. When the optical fiber array is mounted on the grooved substrate, each of the fibers rests in one of the substrate grooves. The first facet of each optical fiber end face is aligned with the end wall of the groove in which it rests, and the second facet is aligned with the end face of the integrated optical waveguide.

Connection between a waveguide array and a fiber array

Growing community of inventors

Pleasanton, CA, United States of America

Shide Cheng