Title :
On the modulation bandwidth of semiconductor microcavity lasers
Author :
Karlsson, Anders ; Schatz, Richard ; Björk, Gunnar
Author_Institution :
Lab. of Photonics & Microwave Eng., R. Inst. of Technol., Kista, Sweden
Abstract :
The small signal injection current modulation bandwidth of vertical cavity microlasers in the conventional macroscopic regime and in the microscopic regime of "controlled spontaneous emission" is investigated. A microlaser, under constraint of nonlinear gain or current density limitations, is found to have the same intrinsic modulation bandwidth as conventional edge-emitting lasers with the same cavity losses and photon density.<>
Keywords :
current density; laser cavity resonators; optical losses; optical modulation; semiconductor lasers; spontaneous emission; cavity losses; controlled spontaneous emission; conventional edge-emitting lasers; current density; intrinsic modulation bandwidth; microscopic regime; modulation bandwidth; nonlinear gain; photon density; semiconductor microcavity lasers; small signal injection current modulation bandwidth; vertical cavity microlasers; Bandwidth; Charge carrier density; Current density; Frequency; Geometry; Microcavities; Optical modulation; Semiconductor laser arrays; Semiconductor lasers; Spontaneous emission;
Journal_Title :
Photonics Technology Letters, IEEE
