scholarly journals Effect of active region position in Fabry-Perot single transverse mode broad-waveguide InGaAsP/InP lasers

2014 ◽  
Vol 22 (7) ◽  
pp. 8156 ◽  
Author(s):  
M. Lysevych ◽  
H. H. Tan ◽  
F. Karouta ◽  
C. Jagadish
Keyword(s):  
Active Region ◽  
Transverse Mode ◽  
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.

Lowest-Order Mode Selection in a Laser Interferometer

1973 ◽  
Vol 51 (6) ◽  
pp. 624-628
Author(s):  
K. O. Hill ◽  
C. K. Campbell
Keyword(s):  
Power Loss ◽  
Laser Interferometer ◽  
Mode Selection ◽  
Transverse Mode ◽  
Laser Resonator ◽  
Infinite Strip ◽  
Mode Propagation ◽  
Order Mode ◽  
Higher Order Modes ◽  
Fabry Perot

An analysis is given of the effect of introducing an angle-selecting aperture into a Fabry–Perot laser interferometer. In the model exemplified, the Fox and Li integral equation relating transverse-mode propagation in an infinite-strip mirror resonator is modified to include such an aperture, defined in terms of an Angular number A. Results are given for the effect of this aperture on the power loss and phase shift per transit of the lowest-order even mode. The number of transits to convergence of an initially launched plane wave is also evaluated as a function of A, to yield a measure of the selective attenuation of higher-order modes of the laser resonator.

scholarly journals Transverse-mode coupling and diffraction loss in tunable Fabry–Pérot microcavities

2015 ◽  
Vol 17 (5) ◽  
pp. 053051 ◽  
Author(s):  
Julia Benedikter ◽  
Thomas Hümmer ◽  
Matthias Mader ◽  
Benedikt Schlederer ◽  
Jakob Reichel ◽  
...  
Keyword(s):  
Mode Coupling ◽  
Transverse Mode ◽  
Diffraction Loss ◽  
Fabry Perot

Asymmetric Fabry-Perot modulators with an InGaAs/AlGaAs active region

1992 ◽  
Vol 24 (2) ◽  
pp. S167-S175 ◽  
Author(s):  
L. Buydens ◽  
P. Demeester ◽  
P. Van Daele
Keyword(s):  
Active Region ◽  
Fabry Perot

scholarly journals Oscillation of the Magnetic Field in an Active Region

1998 ◽  
Vol 185 ◽  
pp. 449-450
Author(s):  
T. Horn ◽  
J. Staude
Keyword(s):  
Active Region ◽  
Ccd Camera ◽  
Disk Center ◽  
Pixel Resolution ◽  
Imaging Spectrometer ◽  
Fabry Perot ◽  
Image Blurring ◽  
Main Spot ◽  
The Magnetic Field ◽  
Better Than

The Vacuum Tower Telescope (VTT) at Tenerife has been used together with a polarimeter in front of a two-dimensional imaging spectrometer with a Fabry-Perot interferometer. The spectrometer has been described by Bendlin et al. (1992) and Bendlin et al. (1995), the remaining instrumentation, calibration, and data reduction by Horn et al. (1996). Some parameters of the setup were: 384×286 pixel CCD-camera (0.2” per pixel); resolution for the images better than 0.8”; filtergrams in the photospheric spectral line Fe I 6173.4 Å with Δλ = 10.9 mÅ; 45 filtergrams for each scan; 127 scans within 114 min. Δt = 54 s. White-light images from the same field of view were taken strictly simultaneously to all narrow-band pictures to correct for image blurring and motion.The present observations were obtained on July 20, 1994, and were focused on the main spot of the active region NOAA 7757, 30° NE from the disk center.

Selection rules for transverse-mode excitation in nonlinear ring and Fabry-Perot resonators

1998 ◽  
Vol 57 (5) ◽  
pp. 4026-4033 ◽  
Author(s):  
A. Gahl ◽  
T. Ackemann ◽  
W. Grosse-Nobis ◽  
G. L. Lippi ◽  
L. M. Hoffer ◽  
...  
Keyword(s):  
Transverse Mode ◽  
Selection Rules ◽  
Fabry Perot ◽  
Mode Excitation
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