Title :
On the quantum limit of laser amplifier detectors
Author :
Karlsson, Anders
Author_Institution :
Dept. of Electron., R. Inst. of Technol., Kista, Sweden
fDate :
8/1/1995 12:00:00 AM
Abstract :
The quantum limit of a laser amplifier used as a detector is calculated. It is shown that the amplified output can be quantum correlated to the detector readout. However, as an information tap, the amplifying detector is no better than a lossless linear beamsplitter due to the added spontaneous emission noise
Keywords :
laser noise; quantum optics; semiconductor lasers; spontaneous emission; amplified output; amplifying detector; detector readout; information tap; laser amplifier detector; lossless linear beamsplitter; quantum limit; spontaneous emission noise; Laser noise; Monitoring; Optical amplifiers; Optical losses; Optical noise; Semiconductor device noise; Semiconductor lasers; Semiconductor optical amplifiers; Spontaneous emission; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
