Pacific Wave Industries, Inc.

University of Southern California

Ewha University-Industry Collaboration Foundation

Pusan National University

Jeongkwan Co., Ltd

Min-Cheol Oh

Joseph Michael

Harold R Fetterman

William H Steier

Jan Grinberg

Seh-Won Ahn

Kyung Woon Jang

Youngmi Lee

Hua Zhang

Myung Hwa Kim

Hyun-Chae Song

Hyunkyung Do

Ji-Hyang Jang

The present disclosure relates to a gas sensor including a nanopore electrode and a fluorine compound coated on the nanopore electrode, and also relates to a preparing method of the gas sensor.

Gas sensor and preparing method of the same

Provided is an integrated optical current sensor for measuring the magnitude of current. The integrated optical current sensor is fabricated by integrating optical elements, such as a thermo-optic phase modulator, a waveguide polarizer and an optical coupler, on a single substrate. As compared to the known current sensors using optical fibers, the integrated optical current sensor is more compact and enables measurement of current with higher reliability. Provided also is a method for producing current sensor chips in a large scale by using a process for fabricating integrated optical elements.

Integrated polymer optical waveguide current sensor

An electro-optic modulator is formed from all flexible materials, to form a flexible electro-optic modulator. The formation process uses a photoresist which selectively adheres to one material more than it adheres to another material. This allows selective liftoff, where only parts of the substrate are lifted off. For example, this allows silicon ends on the modulator, thereby facilitating pig tailing and also facilitates handling. Another aspect describes testing the bending radius.

Low-voltage flexible optic polymer modulators

A tapered electrooptic (EO) polymer waveguide interconnection structure coupling an EO polymer waveguide and a passive polymer waveguide and a method of fabricating the same.

Tapered waveguide interconnection structure and method of fabricating the same

An electro-optical modulator and a method for biasing a Mach-Zehnder modulator. The inventive modulator includes a layer of material at least partially transparent to electromagnetic energy. A first conductive layer is disposed on a first surface of the layer of at least partially transparent material. A second conductive layer is disposed on a second surface of the layer of at least partially transparent material. A layer of insulating material is disposed on the second conductive layer and a third conductive layer is disposed on the layer of insulating material. In the illustrative application, the modulator is a Mach-Zehnder modulator. A biasing potential is applied to the second conductive layer of the modulator and a modulating voltage is applied across the first and the third conductive layers.

Back biased electro-optical modulator

Method for manufacturing an electro-optic polymer waveguide device including the step of electrode poling an electro-optic polymer material of the device in an oxygen-free environment. In a preferred embodiment, the electrode poling is performed at a temperature close to a glass transition temperature of the electro-optic polymer material.

Techniques for electrode poling of electro-optic polymers to eliminate poling induced optical loss and poling induced damage to electro-optic chromophores

Growing community of inventors

Busan, South Korea

Min-Cheol Oh