J
John O'Brien
Researcher at California Institute of Technology
Publications - 13
Citations - 562
John O'Brien is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Photonics & Laser. The author has an hindex of 9, co-authored 13 publications receiving 560 citations. Previous affiliations of John O'Brien include University of Southern California.
Papers
More filters
Proceedings ArticleDOI
Two-dimensional photonic bandgap defect laser
TL;DR: In this paper, a new type of optical microcavity using 2D photonic crystals embedded in a half-wavelength thick waveguide was proposed, which enables one to tailor the device for vertical emission or coupling into an in-plane waveguide.
Journal ArticleDOI
Modal reflectivity in finite-depth two-dimensional photonic-crystal microcavities
TL;DR: In this article, the authors present finite-difference time-domain calculations of the Q factor for an optical microcavity defined by a slab waveguide and two-dimensional photonic-crystal end mirrors.
Journal ArticleDOI
Lasers incorporating 2D photonic bandgap mirrors
TL;DR: In this paper, a 2D hexagonal close-packed array with a lattice constant of 220 nm was used as a one end mirror in a Fabry-Perot cavity.
Patent
Vertical-cavity-surface-emitting semiconductor devices with fiber-coupled optical cavity
TL;DR: In this article, a vertical-cavity surface-emitting laser can be constructed to produce single-mode tunable laser oscillation and signal wavelength conversion using a fiber grating.
Patent
Semiconductor device with electrostatic control
TL;DR: In this paper, a semiconductor light-emitting device having one or more depletion regions that are controlled by control electrodes to vary the spatial distribution of the carriers in an active layer is presented.