Integrated Photonics

Prof.Osgood's optics research group is investigating the core technology of photonic integrated circuits. This area will be important toward optical tele-communication with high speed and large capacity. The following pages will introduce you to the research subjects at Osgood labs.

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Crystal Ion Slicing (CIS)

Crystal Ion Slicing is a novel technology to fabricate a single crystal quality mesoscopic thin film.

Numerical Simulation of Integrated Photonics

• Wide-angle Beam Propagation Method (WA-BPM) based on Pade approximations
• Bidirectional Beam Propagation Method (Bi-BPM)
• Vertical Cavity Surface Emitting Lasers (VCSEL) designs using Bi-BPM (CLEO 2001 presentation)
• Bi-BPM used in nonlinear optics (IPR 2001 presentation)
• Finite-Difference Time-Domain (FDTD) calculations of high-index-constrast photonic structures
• Enhanced Faraday rotation in photonic bandgap structures
• Elliptical-hole photonic crystal fibers (PCF)
• Thin-film modulator

Silicon Photonics

At Columbia University, our Silicon Photonics research group focuses on the design, numerical simulation, fabrication, and performance analysis of integrated optics based on Silicon-On-Insulator (SOI) platform.