Electronics Letters · 1985 · 36 citations · 0 references
EngineeringElectrical EngineeringMaterials ScienceOpticsOptoelectronicsPhotonicsLaser DiodesLaser PhysicsOptical Communication SystemsOptical ResonatorsOptical SourcesSemiconductor LasersCavity DesignExternal-cavity LasersLaser Cavity DesignLaser TuningLong-term StabilityTunable External-cavity LasersTunable LasersWavelength Tuning
Packaged grating-tuned external cavity InGaAsP/InP lasers have been developed for use in coherent transmission systems that operate at a wavelength of 1.5 μm. The emission wavelength can be selected within a 60 nm range during manufacture, and can subsequently be tuned over 0.5 nm (63 GHz). The lasers have linewidths better than 20 kHz and show long-term relative frequency stability of better than 150 MHz.