Title :
Characteristics of multistage monolithically integrated master oscillator power amplifiers
Author :
Mehuys, David ; Parke, Ross ; Waarts, Robert G. ; Welch, David F. ; Hardy, Amos ; Streifer, William ; Scifres, Donald R.
Author_Institution :
Spectra Diode Labs., San Jose, CA, USA
fDate :
6/1/1991 12:00:00 AM
Abstract :
Monolithically integrated master oscillator power amplifiers (M-MOPAs) are characterized both theoretically and experimentally. A self-consistent amplifier analysis is used to calculate the guided-mode amplified signal and amplified spontaneous emission noise powers traveling within a multiple-stage single-pass amplifier. Within a few amplifier stages, the signal power stabilizes at a level determined by the transmission between stages. Light output versus current and near-field and far-field patterns are calculated for an M-MOPA with detuned grating output couplers between stages and are compared to experiments. Coherent output powers in excess of 1 W are calculated and experimentally verified. Diffraction-limited performance has been demonstrated to output powers of 320 mW
Keywords :
distributed Bragg reflector lasers; integrated optics; integrated optoelectronics; laser theory; semiconductor junction lasers; superradiance; 1 W; 320 mW; DBR laser; GaAs active region; amplified spontaneous emission noise powers; coherent output powers; current; detuned grating output couplers; diffraction limited performance; far-field patterns; guided-mode amplified signal; light output; multistage monolithically integrated master oscillator power amplifiers; near field patterns; self-consistent amplifier analysis; signal power; single-pass amplifier; Couplers; Distributed Bragg reflectors; Gratings; High power amplifiers; Optical amplifiers; Optical variables control; Oscillators; Power amplifiers; Power generation; Semiconductor optical amplifiers;
Journal_Title :
Quantum Electronics, IEEE Journal of
