Title :
Lithographic tuning of a two-dimensional photonic crystal laser array
Author :
Painter, O. ; Husain, A. ; Scherer, A. ; Lee, P.T. ; Kim, I. ; O´Brien, J.D. ; Dapkus, P.D.
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
Abstract :
One attraction of photonic crystals is the ability to control optical device characteristics by lithographically varying the geometry. In this letter, we demonstrate a 10/spl times/10 array of optically pumped two-dimensional (2-D) photonic crystal defect lasers with varying lattice parameters. By adjusting the photonic crystal interhole spacing as well as the hole diameter we are able to tune the laser wavelength from 1500 to 1625 nm on a monolithic InP-InGaAsP wafer. A wavelength resolution of 10 nm from device to device was obtainable, limited by the lithography and etching tolerances of our fabrication method.
Keywords :
laser tuning; microcavity lasers; micromechanical resonators; optical fabrication; photolithography; photonic band gap; semiconductor laser arrays; 10/spl times/10 array; 1500 to 1625 nm; 2D photonic crystal laser array; InP-InGaAsP; etching tolerances; fabrication method; lithographic tuning; monolithic InP-In-GaAsP wafer; optical device characteristics control; optically pumped 2D photonic crystal defect lasers; two-dimensional photonic crystal laser array; wavelength resolution; Geometrical optics; Laser excitation; Laser tuning; Optical arrays; Optical control; Optical devices; Optical pumping; Optical tuning; Photonic crystals; Pump lasers;
Journal_Title :
Photonics Technology Letters, IEEE
