Electronics Letters · 1995 · 42 citations · 6 references
EngineeringElectrical EngineeringBiomedical OpticsMicroelectromechanical SystemsPhotonicsFiber OpticsIntegrated OpticsIntegrated PhotonicsLaser DiodesOptical FibersSemiconductor LasersBeam DivergenceBeam ExpandersIntegrated LasersIntegrated Optical WaveguidesIntegrated Optics CouplingIntegrated Semiconductor LasersIntegrated WaveguidesWaveguide Lasers
A new structure for a 1.3 µm-wavelength beam-expander integrated ridge-waveguide laser is demonstrated that does not require a regrowth step. A narrow beam divergence of 5.4° (lateral) and 18.9° (vertical) enables a laser diode to be coupled to a cleaved singlemode fibre with an efficiency as high as 33% with a 1 dB alignment tolerance of ±2.4 µm laterally and ±1.5 µm vertically.
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Tapered thickness MQW waveguide BH MQW lasers
Hirokazu Kobayashi, Mitsuru Ekawa, N. Okazaki et al. · IEEE Photonics Technology Letters · 1994 · 96 citations
Ingrid Moerman, Mark D'Hondt, Wim Vanderbauwhede et al. · IEEE Photonics Technology Letters · 1994 · 29 citations