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Optical modulation with pre-chirp control using electro-absorption modulator (EAM) and its integration have been reviewed. Device design, fabrication, and application of high-speed chirp-control intensity modulation are also discussed for OOK and OFDM modulation scheme.
In this paper, an InGaAsP/InGaAlAs high-band-offset quantum well for high-speed all-optical wavelength conversion is reviewed. Due to large band offset ratio between electron and heavy hole, InGaAsP/InGaAlAs multiple quantum well can have short carrier sweeping time under electric field from low hole band offset. Large than 33GHz of all-optical frequency response is demonstrated under high bias, confirming...
In this letter, a high-efficiency low-power-driven 40-Gb/s electroabsorption modulator is demonstrated using a new type of waveguide, i.e., self-aligned two-step undercut-etched waveguide (SATSUEW). The low-optical-and-electrical-loss performance can be realized from the smooth side wall, wide ridge, and small core of SATSUEW, enabling high-efficiency high-speed optical modulation. Through a 350-...
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