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Accession Number:
ADA564598
Title:
Electrically Driven Photonic Crystal Nanocavity Devices
Descriptive Note:
Journal article
Corporate Author:
STANFORD UNIV CA DEPT OF ELECTRICAL ENGINEERING
Report Date:
2012-01-01
Pagination or Media Count:
12.0
Abstract:
Interest in photonic crystal nanocavities is fueled by advances in device performance, particularly in the development of low-threshold laser sources. Effective electrical control of highperformance photonic crystal lasers has thus far remained elusive due to the complexities associated with current injection into cavities. A fabrication procedure for electrically pumping photonic crystal membrane devices using a lateral p-i-n junction has been developed and is described in this study. We have demonstrated electrically pumped lasing in our junctions with a threshold of 181 nA at 50 K. The lowest threshold ever demonstrated in an electrically pumped laser. At room temperature, we find that our devices behave as single-mode light-emitting diodes LEDs, which when directly modulated, have an ultrafast electrical response up to 10 GHz corresponding to less than 1 fJbit energy operation. The lowest for any optical transmitter. In addition, we have demonstrated electrical pumping of photonic crystal nanobeam LEDs and have built fiber taper coupled electro-optic modulators. Fibercoupled photodetectors based on two-photon absorption are also demonstrated as well as multiply integrated components that can be independently electrically controlled. The presented electrical injection platform is a major step forward in providing practical low power and integrable devices for on-chip photonics.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE
