Ultra-Low Power Fiber-Coupled Gallium Arsenide Photonic Crystal Cavity Electro-Optical Modulator
Abstract
We demonstrate a gallium arsenide photonic crystal cavity injection-based electro-optic modulator coupled to a fiber taper waveguide. The fiber taper serves as a convenient and tunable waveguide for cavity coupling with minimal loss. Localized electrical injection of carriers into the cavity region via a laterally doped p-i-n diode combined with the small mode volume of the cavity enable ultra-low energy modulation at sub-fJ/bit levels. Speeds of up to 1 GHz are demonstrated with photoluminescence lifetime measurements revealing that the ultimate limit goes well into the tens of GHz.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 11, 2011
- Accession Number
- ADA541392
Entities
People
- Arka Majumdar
- Bryan Ellis
- Eugene E. Haller
- Gary Shambat
- Jelena Vučković
- Marie A. Mayer
Organizations
- Stanford University