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Wavelength-division (de)multiplexers, compatible with a multi-guide vertical integration platform in InP, are reported. Designs, based on arrayed waveguide gratings and diffractive echelle gratings, are demonstrated to work well within this platform and to be suitable for 100Gb/s receive applications.
We describe the design, fabrication and characterization of a waveguide wavelength splitter — a generic on-chip coarse wavelength-division (de)multiplexing solution for regrowth-free multi-guide vertical integration in InP. The splitter operation is based on a combination of wavelength selective vertical transfer between optical waveguides stacked one above the other in a descending order of their...
A model to analyze longitudinal mode selection in high-order laterally coupled DFB lasers is developed and used to verify an ability to control the complex coupling resulting in a single-frequency lasing by manipulating the grating shape.
An integrated optically pre-amplified photodetector, featuring waveguide gain and absorption sections defined on the same active waveguide layers atop a common passive waveguide, is reported. The device demonstrates high responsivity while exhibiting little polarization sensitivity.
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