title: Electrically-pumped, broad-area, single-mode photonic crystal lasers.
abstract: Planar broad-area single-mode lasers, with modal widths of the order of tens of microns, are technologically important for high-power applications and improved coupling efficiency into optical fibers. They may also find new areas of applications in on-chip integration with devices that are of similar size scales, such as for spectroscopy in microfluidic chambers or optical signal processing with micro-electromechanical systems. An outstanding challenge is that broad-area lasers often require external means of control, such as injection-locking or a frequency/spatial filter to obtain single-mode operation. In this paper, we propose and demonstrate effective index-guided, large-area, edge-emitting photonic crystal lasers driven by pulsed electrical current injection at the optical telecommunication wavelength of 1550 nm. By suitable design of the photonic crystal lattice, our lasers operate in a single mode with a 1/e(2) modal width of 25 microm and a length of 600 microm.
authors: Department of Electrical Engineering and Department of Applied Physics, California Institute of Technology, Pasadena, CA 91125, USA. linz@caltech.edu
authors: Lin
authors: L
authors: Zhu
authors: Philip
authors: P
authors: Chak
authors: Joyce K S
authors: JK
authors: Poon
authors: Guy A
authors: GA
authors: DeRose
authors: Amnon
authors: A
authors: Yariv
authors: Axel
authors: A
authors: Scherer