Rayleigh-Brillouin spectra for heated nitrogen gas were measured by imaging the output of a Fabry-Perot interferometer onto a CCD array. The spectra were compared with the theoretical 6-moment model of Rayleigh-Brillouin scattering convolved with the Fabry-Perot instrument function. Estimates of the temperature and a dimensionless parameter proportional to the number density of the gas as funct...

The dynamics of light in Fabry–Perot cavities with varying length and input laser frequency are analyzed. At high frequencies, the response to length variations is very different from the response to laser frequency variations. Implications for kilometerscale Fabry–Perot cavities such as those utilized in gravitational-wave detectors are discussed.  2002 Elsevier Science B.V. All rights reserv...

The noise and performance limitations of optical sensors that utilize Fabry–Perot interferometry detection are investigated. A Fabry–Perot interferometer consists of two partially transparent parallel plates with reflective inner surfaces. The plates form a cavity with an optical resonance that depends on the distance between them. At resonant wavelengths, the incident light energy is transmitt...

The effect of a tunable, externally coupled Fabry-Perot cavity to resonantly enhance the optical Hall effect signatures at terahertz frequencies produced by a traditional Drude-like two-dimensional electron gas is shown and discussed in this Letter. As a result, the detection of optical Hall effect signatures at conveniently obtainable magnetic fields, for example, by neodymium permanent magnet...

The bandwidth of LIGO-like terrestrial interferometric gravitational wave detectors is set by the pole of the Fabry–Perot cavities within the arms of the Michelson interferometer. This constraint arises because the gain of gravitational wave-induced signal sidebands is limited to frequencies within the linewidth of the cavities. The nature of standard Fabry–Perot cavities is such that one canno...

A simple intrinsic Fabry-Perot interferometric (IFPI) sensor is developed. The sensor is fabricated by two micro air gaps as reflective mirrors in a fiber to form a Fabry-Perot cavity. Theoretical and experimental studies of the sensor are described. Experimental results show that high resolution and high sensitivity can be achieved. Two structures of micro-air-gap-based IFPI sensors offer more...

Future fiber optic communications systems will utilize wavelength division mutliplexing as a means of transmitting more information over the same number of fibers. A single source capable of generating multiple frequencies simultaneously would be an attractive option for such systems. We report here on an all-fiber, dual-frequency, colasing, widely tunable laser source with the potential for mu...

We demonstrate an optical clock recovery circuit that extracts the line rate component on a per packet basis from short data packets at 40Gb/s. The circuit comprises a Fabry-Perot filter followed by a novel power limiting configuration, which in turn consists of a 5m highly nonlinear bismuth oxide fiber in cascade with an optical bandpass filter. Both experimental and simulation-based results a...