Electronics Letters · 1995 · 25 citations · 10 references
EngineeringElectrical EngineeringMaterials ScienceOptical MaterialsOptoelectronicsPhotonicsIntegrated PhotonicsLaser DiodesOptical SourcesPhotonic Integrated CircuitsQuantum Well DevicesSemiconductor LasersFabricationLaser Gain MaterialsOptical GainOptical Gain In SemiconductorsQuantum Well Laser DiodesQuantum Well LasersStrained Layer StructuresStrained-layer Heterostructures
The improved performance of gain-coupled DFB lasers incorporating a titanium surface Bragg grating and a strained layer multiquantum well active region for operation at 1.55 µm is presented. Besides the essentially simplified fabrication process, the incorporation of the metallic, absorptive grating yields stable singlemode operation with a high sidemode suppression.
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Coupled-Wave Theory of Distributed Feedback Lasers
H. Kogelnik, C. V. Shank · Journal of Applied Physics · 1972 · 2.1K citations