Local tuning of photonic crystal cavities using chalcogenide glasses

Date

2008

Authors

Faraon, Andrei
Englund, Dirk
Bulla, Douglas
Luther-Davies, Barry
Eggleton, Benjamin J.
Stoltz, Nick
Petroff, Pierre
Vuckovic, Jelena

Journal Title

Journal ISSN

Volume Title

Publisher

American Institute of Physics (AIP)

Abstract

We demonstrate a method to locally change the refractive index in planar optical devices by photodarkening of a thin chalcogenide glass layer deposited on top of the device. The method is used to tune the resonance of GaAs-based photonic crystal cavities by up to 3 nm at 940 nm, with only 5% deterioration in cavity quality factor. The method has broad applications for postproduction tuning of photonic devices.

Description

Keywords

refractive index, planar optical devices, photodarkening, chalcogenide glass, resonance

Citation

Source

Applied Physics Letters

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1063/1.2839308

Restricted until