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Dispersion-tuned swept lasers (DTSLs) can sweep the lasing wavelength widely at high speed without need for any filter and have good potential for sensing applications, such as swept-source optical coherence tomography (SS-OCT). Properties of DTSLs, tuning range, tuning speed, and spectral linewidth, etc., are determined by several parameters, amount of dispersion, cavity length, modulation frequency...
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