and threshold circuitry as in the case of the preceding embodiment. However, to improve processing, conventional chirp demodulation circuitry, as commonly used in chirp radar systems, may be inserted at the output of amplifier 16, shown in FIG. 2, to remove the time varying frequency component ...
An expression is obtained for the corresponding level of noise by this amplifier. This noise level is greater than the level required in a previous paper which did not impose the non-reciprocal requirement. The synthesis procedure uses a singularly perturbed quantum system and leads to an ...
Investigation of the superfluorescence and signal amplification in an ultrabroadband multiterawatt optical parametric chirped pulse amplifier system. New J. Phys. 8, 219–230 (2006). Article ADS Google Scholar Schmidt, B. E. et al. Frequency domain optical parametric amplification. Nat. Commun. ...
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We demonstrate superior performance of a two-pump amplifier with respect to the state of the art EDFA in a low-input-power regime for the first time. A parametric amplifier with 50dB gain outperforms the EDFA by 1.5dB at FEC threshold level for a 10.7-Gb/s DPSK format.23rd Annual ...
We establish a general condition which must be obeyed by every operator referred to the quantum phase. This condition is derived on the basis of the model of the linear phase insensitive amplifier, proposed by Glauber. We demonstrate that the phase operators, most frequently discussed in ...
A parametric optical amplifier or a Raman amplifier having an inhomogenously broadened gain amplifies the plurality of recovered clocks for compensating a portion of the cavity loss at all wavelengths of the plurality of recovered clocks. A wavelength selector passes the light at the plurality of ...
Optical amplifierLumped amplificationAmplifier type selectionData transport capacities of fiber based optical transmission systems with conventional phase insensitive optical amplification and phase sensitive parametric amplification are compared using the......
We experimentally demonstrate polarization-insensitive phase conjugate generation in a semiconductor optical amplifier (SOA) using a counter-propagating and cross-polarized degenerate pump. The polarization-insensitive operation is achieved in both the ports of the SOA through Bragg scattering four-wave ...
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