Optical data communication between Josephson-junction circuits and room-temperature electronics

1993 ◽  
Vol 3 (1) ◽  
pp. 2881-2884 ◽  
Author(s):  
B. Van Zeghbroeck
Keyword(s):  
Josephson Junction ◽  
Room Temperature ◽  
Data Communication ◽  
Optical Data ◽  
Josephson Junction Circuits

scholarly journals Aluminium incorporation in polar, semi- and non-polar AlGaN layers: a comparative study of x-ray diffraction and optical properties

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Duc V. Dinh ◽  
Nan Hu ◽  
Yoshio Honda ◽  
Hiroshi Amano ◽  
Markus Pristovsek
Keyword(s):  
Room Temperature ◽  
Optical Emission ◽  
Vapour Phase ◽  
Optical Data ◽  
Bandgap Energy ◽  
X Ray Diffraction ◽  
Vapour Phase Epitaxy ◽  
X Ray ◽  
Metal Organic ◽  
Organic Vapour

Abstract Growth of AlxGa1−xN layers (0 ≤ x ≤ 1) simultaneously on polar (0001), semipolar ($$10\bar{{\rm{1}}}$$ 10 1 ¯ 3) and ($$11\bar{{\rm{2}}}2$$ 11 2 ¯ 2 ), as well as nonpolar ($$10\bar{{\rm{1}}}0$$ 10 1 ¯ 0 ) and ($$11\bar{{\rm{2}}}0$$ 11 2 ¯ 0 ) AlN templates, which were grown on planar sapphire substrates, has been investigated by metal-organic vapour phase epitaxy. By taking into account anisotropic in-plane strain of semi- and non-polar layers, their aluminium incorporation has been determined by x-ray diffraction analysis. Optical emission energy of the layers was obtained from room-temperature photoluminescence spectra, and their effective bandgap energy was estimated from room-temperature pseudo-dielectric functions. Both x-ray diffraction and optical data consistently show that aluminium incorporation is comparable on the polar, semi- and non-polar planes.

Origin of the optical activity of silver thiogallate

2000 ◽  
Vol 33 (1) ◽  
pp. 126-129 ◽  
Author(s):  
J. Etxebarria ◽  
C. L. Folcia ◽  
J. Ortega
Keyword(s):  
Circular Dichroism ◽  
Optical Activity ◽  
Room Temperature ◽  
Optical Rotation ◽  
Linear Dichroism ◽  
Optical Data ◽  
Point Dipole ◽  
Reliable Measurement ◽  
Photoelastic Modulator ◽  
Circular Dichroïsm

Using a high-accuracy universal polarimeter, the birefringence and optical activity of AgGaS2have been determined between 300 and 500 K. The optical rotation has been found to be 94° mm−1at room temperature for a wavelength of 632.8 nm. This value is unexpectedly small if compared with values close to 1000° mm−1at 485 nm reported previously. The present optical data are well explained using a point-dipole model for the calculation of the refractive indices and optical activity. The main contributors to the optical rotation are the S atoms. However, these atoms are not at positions especially suitable to promote extremely large gyrations. Consequently, the size of the optical rotation reported before in the blue part of the spectrum is presumably due to the existence of a circular dichroism band close to that region. Using an optical system based on a photoelastic modulator, a strong linear dichroism peak has been measured in the range 450–500 nm. This fact has prevented reliable measurement of the circular dichroism.

Electronic simulation of multi-Josephson-junction circuits

1985 ◽  
Vol 21 (2) ◽  
pp. 586-589 ◽  
Author(s):  
V. Kornev ◽  
K. Platov ◽  
K. Likharev
Keyword(s):  
Josephson Junction ◽  
Electronic Simulation ◽  
Josephson Junction Circuits

ELECTRONICS FOR HIGH SPEED, BURST MODE OPTICAL COMMUNICATIONS

1990 ◽  
Vol 01 (03n04) ◽  
pp. 223-243 ◽  
Author(s):  
R.G. SWARTZ ◽  
Y. OTA
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Data Communication ◽  
Optical Fiber Communication ◽  
Digital Data ◽  
Optical Data ◽  
Data Link ◽  
Fiber Communication ◽  
Burst Mode ◽  
Multiple Channel

Electronics for burst mode data communication over an optical data link will contribute to wider acceptance of photonic technology. This paper describes the concepts and difficulties inherent in burst mode optical communication systems, and proposes a new solution employing an ultra-high speed, high accuracy peak detector. Sensitivity penalties associated with this technique are reviewed. The method was implemented in an optical receiver with dc to 500 Mb/s operation, and at 200 Mb/s, demonstrates an isolated pulse sensitivity of −29.5 dBm, and pulse width distortion less than lns. An example application, the Multiple channel Optical Data LINK (MODLINK), is described: a fully dc-coupled, 12 parallel channel digital data link system designed for high speed optical fiber communication at bit rates ranging from dc to 200 Mb/s per channel, applicable at distances of centimeters to over 3 km.

High-Speed Quantum Dot Lasers and Amplifiers for Optical Data Communication

2006 ◽  
Author(s):  
M. Kuntz ◽  
G. Fiol ◽  
C. Szewc ◽  
M. Lammlin ◽  
C. Meuer ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Speed ◽  
Data Communication ◽  
Optical Data ◽  
Quantum Dot Lasers
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