Showing papers by "Norihiko Nishizawa published in 1994"
TL;DR: The guided-acoustic-wave Brillouin scattering spectra in PANDA fibers in the low-frequency region are unambiguously confirmed with this scheme of symmetric and asymmetric fiber loop mirrors.
Abstract: A new scheme of symmetric and asymmetric fiber loop mirrors is proposed to identify clearly the polarized guided-acoustic-wave Brillouin scattering spectra with multimode laser sources. The guided-acoustic-wave Brillouin scattering spectra in PANDA fibers in the low-frequency region are unambiguously confirmed with this scheme.
22 citations
TL;DR: In this paper, a mode-locked 1.064 µm Nd:YAG laser and a fiber ring reflector made of 0.85 µm single-mode fiber were used for efficient squeezing at low pump light power.
Abstract: Efficient squeezing at low pump light power is demonstrated with a mode-locked 1.064 µm Nd:YAG laser and a fiber ring reflector made of 0.85 µm single-mode fiber. Noise reduction of about 2.0 dB below the shot noise level is observed. The squeezing process by the optical Kerr effect is calculated with a simple model. The experimental results are in good agreement with the calculated ones.
19 citations
TL;DR: In this article, the output noise of the homodyne detector, whose signal light is the squeezed light with non-zero amplitude, is analyzed theoritically and experimentally for the first time.
Abstract: In generating quadrature squeezed light with a fibre ring reflector, the pump light crosstalk should be minimized to achieve the sub-shot noise levels. The output noise of the homodyne detector, whose signal light is the squeezed light with non-zero amplitude, is analysed theoritically and experimentally for the first time. The requirement for the fibre coupler to generate the squeezed light is derived.
2 citations