scholarly journals High-frequency electrooptic Fabry-Perot modulators

1991 ◽  
Vol 3 (6) ◽  
pp. 513-515 ◽  
Author(s):  
R.J. Simes ◽  
R.H. Yan ◽  
C.C. Barron ◽  
D. Derrickson ◽  
D.G. Lishan ◽  
...  
Keyword(s):  
High Frequency ◽  
Fabry Perot

Information-Measuring Complex for Registration High Frequency Gravitational Waves

2020 ◽  
pp. 42-51
Author(s):  
I. S. Golyak ◽  
A. N. Morozov ◽  
A. L. Nazolin ◽  
S. E. Tabalin
Keyword(s):  
Solid State ◽  
Active Region ◽  
Gravitational Waves ◽  
Spectral Range ◽  
High Frequency ◽  
Experimental Studies ◽  
Yag Laser ◽  
Information Measuring ◽  
Measuring Complex ◽  
Fabry Perot

The information-measuring complex designed to register high-frequency fluctuations of the space-time metric and its main elements are described in paper. The complex is based on a Fabry-Perot interferometer with highly reflective mirrors and a two-meter resonator. A solid-state Nd: YAG laser with a wavelength λ = 1064 nm is used for pumping. To read the signal, an InGaAs receiver DET10N2, with a working spectral range of 500-1700 nm and an active region of 0.8 mm2, is applied. Using the developed complex, experimental studies of signal registration at readout frequencies of 1 MHz and 20 MHz were carried out. The graphs of signal fluctuations in time and the spectra constructed from them are given.

High frequency Fabry-Perot phase modulator

2008 ◽  
pp. 766-768
Author(s):  
David W. Sesko ◽  
Carl E. Wieman
Keyword(s):  
High Frequency ◽  
Phase Modulator ◽  
Fabry Perot

scholarly journals The nuclear spin of iodine I— fine structure in the first spark spectrum

1935 ◽  
Vol 149 (867) ◽  
pp. 269-281 ◽  
Keyword(s):  
Fine Structure ◽  
High Resolution ◽  
Nuclear Spin ◽  
High Frequency ◽  
Complete Resolution ◽  
Electrodeless Discharge ◽  
A Value ◽  
Fabry Perot ◽  
Fine Structures ◽  
The Individual

In an earlier paper on the fine structures of the visible lines in the arc spectra of bromine and iodine an attempt was made to estimate the nuclear spin of iodine, and a tentative value of 9/2 was proposed. The iodine arc lines were excited by a high frequency electrodeless discharge in pure iodine vapour and examined with a silvered Fabry-perot interferometer. The fine structures in the arc lines are small, and as the patterns are highly complex and the individual components not very sharp, interpretation was difficult. It was concluded with certainty that the nuclear spin was at least equal to 5/2, but one line in particular suggested a value of 9/2. This was indefinite, and in view of the uncertainty a thorough examination of both the arc and spark spectra of iodine has been undertaken. A preliminary notice has already appeared. The first spark spectrum can be more easily studied than the arc spectrum, since the structure are on a very much bigger scale and more complete resolution can be attained. The present work is concerned with the spark lines excited in a hollow cathode discharge. Fine structures in iodine spark lines were first recorded long ago by Wood and Kimura who excited the lines in a Geissler tube and examined them with a transmission echelon. Murakawa attempted to analyse the fine structure data, but as the source and instrument employed by Wood and Kimura were not able to give the high resolution attained here, the deductions made from these data, although generally correct, are uncertain and require further examination; for many of the line structures are much more complex than as reported by these earlier observers.

Observation of bifurcation to chaos in a passive all-optical Fabry-Perot resonator: a high-frequency optical modulator

1984 ◽  
Vol 313 (1525) ◽  
pp. 405-409
Keyword(s):  
Excellent Agreement ◽  
High Frequency ◽  
Optical Bistability ◽  
Time Dependent ◽  
Optical Modulator ◽  
Round Trip Time ◽  
Round Trip ◽  
Trip Time ◽  
Fabry Perot ◽  
All Optical

We report the first observations of bifurcation routes to chaos in an all-optical resonator. Generation of associated deep and sustained Ikeda oscillation of the smooth CO 2 laser input pulses at twice the round-trip time of the Fabry-Perot resonator provides a high-frequency ( ca .0.1 GHz) passive optical modulator device. Results are in excellent agreement with our adaption of optical bistability theory to the time-dependent regime

High Frequency Confinement Factor Modulation of Diode Lasers

1997 ◽  
Vol 08 (03) ◽  
pp. 547-574 ◽  
Author(s):  
S. A. Gurevich ◽  
M. S. Shatalov ◽  
G. S. Simin
Keyword(s):  
High Frequency ◽  
Laser Diodes ◽  
Rate Equations ◽  
Lateral Part ◽  
Optical Confinement ◽  
Initial Experiment ◽  
External Voltage ◽  
Fabry Perot ◽  
High Bit Rates ◽  
Advanced Model

In this paper we discuss the possibility of confinement factor and dual (confinement & pumping current) modulation of laser diodes. In the initial experiment, four-terminal Fabry–Pérot lasers of ridge guide type with two additional side electrodes were tested. The possibility of controlling the lateral part of the optical confinement factor by applying an external voltage to the side contacts was proved in this experiment. To analyze the dynamic behavior of the four-terminal laser under confinement factor and dual modulation, a simple model and a more accurate new model were developed, the last one based on the simultaneous solution of laser rate equations and matrix equation relating potentials and currents. The simulations carried out on the basis of the advanced model allowed us to propose an optimized four-terminal laser structure promising enhanced performance under dual modulation. It is shown that dual modulation may result in very efficient correction of output waveforms which leads to a much better opening of transmitted eye patterns at high bit rates as compared to direct modulation.

High-frequency acoustic detector based on fiber Fabry-Perot interferometer

2004 ◽  
Author(s):  
Hee S. Park ◽  
Graham Thursby ◽  
Brian Culshaw
Keyword(s):  
High Frequency ◽  
Acoustic Detector ◽  
Fabry Perot

scholarly journals Propagation of high frequency waves in the quiet solar atmosphere

2008 ◽  
pp. 87-99 ◽  
Author(s):  
A. Andic
Keyword(s):  
Solar Atmosphere ◽  
High Frequency ◽  
Low Frequency ◽  
Magnetic Structures ◽  
Partial Heating ◽  
Fabry Perot ◽  
High Frequency Waves ◽  
Propagation Of Waves ◽  
The Waves ◽  
Low Frequency Waves

High-frequency waves (5 mHz to 20 mHz) have previously been suggested as a source of energy accounting for partial heating of the quiet solar atmosphere. The dynamics of previously detected high-frequency waves is analyzed here. Image sequences were taken by using the German Vacuum Tower Telescope (VTT), Observatorio del Teide, Izana, Tenerife, with a Fabry-Perot spectrometer. The data were speckle reduced and analyzed with wavelets. Wavelet phase-difference analysis was performed to determine whether the waves propagate. We observed the propagation of waves in the frequency range 10 mHz to 13 mHz. We also observed propagation of low-frequency waves in the ranges where they are thought to be evanescent in the regions where magnetic structures are present.

High frequency Fabry-Perot phase modulator

1987 ◽  
Vol 26 (9) ◽  
pp. 1693 ◽  
Author(s):  
David W. Sesko ◽  
Carl E. Wieman
Keyword(s):  
High Frequency ◽  
Phase Modulator ◽  
Fabry Perot
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