Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published November 1999 | Published
Journal Article Open

Room temperature photonic crystal defect lasers at near-infrared wavelengths in InGaAsP

Abstract

Room temperature lasing from optically pumped single defects in a two-dimensional (2-D) photonic bandgap (PBG) crystal is demonstrated. The high-Q optical microcavities are formed by etching a triangular array of air holes into a half-wavelength thick multiquantum-well waveguide. Defects in the 2-D photonic crystal are used to support highly localized optical modes with volumes ranging from 2 to 3 (lambda/2n)(3). Lithographic tuning of the air hole radius and the lattice spacing are used to match the cavity wavelength to the quantum-well gain peak, as well as to increase the cavity Q. The defect lasers were pumped with 10-30 ns pulses of 0.4-1% duty cycle. The threshold pump power was 1.5 mW (approximate to 500 μW absorbed).

Additional Information

© 1999 IEEE. Reprinted with permission. Manuscript received July 28, 1999; revised August 27, 1999. This work was supported by the Army Research Office under Contracts DAAH04-96-1-0389 and DAAD19-99-1-0121, and the NSF under Contract ECS-9632937. O. J. Painter would like to thank K. Vahala and T. Yoshie for many helpful discussions and R. Johnson for his help in setting up the experimental apparatus.

Attached Files

Published - PAIjlt99.pdf

Files

PAIjlt99.pdf
Files (539.1 kB)
Name Size Download all
md5:0253f93c94a73e996ac61bb4718dddad
539.1 kB Preview Download

Additional details

Created:
August 22, 2023
Modified:
March 5, 2024