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We present an ultralow RF linewidth (192 Hz) and subpicosecond phase noise (260 fs) using a passively mode-locked quantum-well laser with feedback via a dual optical fiber loop.
A spatially discretised Reduced Maxwell Bloch model is investigated, which models nonlinear optical propagation through a thin slab of resonant atomic material placed in a recirculating cavity. The model may be used to determine the stationary states of the cavity field, which may then be subjected to stability analysis. The analysis identifies the structure of the canonical integrable discrete model...
Results on a tunable resonant cavity enhanced detector (RCED) in the mid-infrared employing a vertically moving, comb-drive actuated micromirror are presented. A wide tuning range of 0.7 mum and a low order configuration have been achieved with a micromirror displacement range of 2.5 mum and a reduction of the optical cavity length respectively.
Highly sensitive photodetectors for the mid infrared have been obtained by placing a photodiode inside a Fabry Perot cavity. These resonant cavity enhanced detectors (RCED) are sensitive at the resonances only, which depend on the distance between the two mirrors of the cavity. Displacing one of these mirrors allows changing the cavity length and thus selecting the detection wavelength. The design,...
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