Integrated Photonics


Prof.Osgood’s Optics research group is investigating the core technology of photonic integrated circuits. This area will be important towards optical telecommunication with high speed and large capacity. The following pages will introduce you to the research subjects at Osgood labs.


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 Propogation 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.