Full text loading...
Schematic diagram of experimental setup. VA: variable attenuator, FI: Faraday isolator, SHG: second harmonic generation, DBS, dichroic beam splitter, LO: local oscillator, HBS: beam splitter, HD: balanced homodyne detector.
Dependences of the output power of the laser and the conversion efficiency of SHG on the power of the incident fundamental laser. The solid lines are theoretical predictions.
Measured quadrature quantum noise of the squeezed vacuum generation. (a) SNL (b) Quantum noise of the squeezed vacuum as the LO phase was scanned. The settings of the spectrum analyzer: zero-span mode at , resolution bandwidth is and video bandwidth is .
Measured quantum noise spectrum: (a) SNL and (b) squeezing spectrum as the LO phase was locked. The settings of the spectrum analyzer: resolution bandwidth is and video bandwidth is , and the sweep time is .
Article metrics loading...