IEEE Photonics Technology Letters · 1989 · 22 citations · 4 references
EngineeringElectrical EngineeringMaterials ScienceOpticsOptoelectronicsPhotonicsIntegrated OpticsInterferometryLaser DiodesOptical ModulatorsOptical WaveguidesPhotonic Integrated CircuitsCurrent-voltage RelationsElectro-optic ModulatorsIntegrated Electro-optic DevicesIntegrated Optical ModulatorsMach-zehnder ModulatorsMetalorganic Vapor Phase EpitaxyPhase ModulationSemiconductor Optical Modulators
An InGaAsP/InP electrooptic Mach-Zehnder modulator consisting of two 3-dB Y-branch couplers and phase modulation arms is fabricated by the metal-organic vapor-phase epitaxy growth method. A schematic illustration and cross section of the interferometric modulator as well as the current-voltage characteristics of the arms are shown. The modulator is formed by a waveguide having almost the same cross-sectional configuration as a double-heterostructure laser diode. The switching voltage of 4.5 V applied to one arm of the modulator results in an excitation of about 7 dB.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Frequency chirping in external modulators
Fumio Koyama, K. Oga · Journal of Lightwave Technology · 1988 · 460 citations
Optical guided-wave gallium arsenide monolithic interferometer
J.P. Donnelly, N. L. DeMeo, G. Ferrante et al. · Applied Physics Letters · 1984 · 33 citations