Phase-sensitive optical amplifiers

1994 ◽  
Author(s):  
Prem Kumar ◽  
William L. Kath ◽  
Ruo-Ding Li
Keyword(s):  
Optical Amplifiers ◽  
Phase Sensitive

Fiber-based phase-sensitive optical amplifiers and their applications

2020 ◽  
Vol 12 (2) ◽  
pp. 367 ◽  
Author(s):  
Peter A. Andrekson ◽  
Magnus Karlsson
Keyword(s):  
Optical Amplifiers ◽  
Phase Sensitive

Dispersion compensation with phase-sensitive optical amplifiers

1994 ◽  
Vol 12 (3) ◽  
pp. 541-549 ◽  
Author(s):  
Ruo-Ding Li ◽  
P. Kumar ◽  
W.L. Kath
Keyword(s):  
Optical Amplifiers ◽  
Dispersion Compensation ◽  
Phase Sensitive

Ultralow Noise, Broadband Phase-Sensitive Optical Amplifiers, and Their Applications

2012 ◽  
Vol 18 (2) ◽  
pp. 1016-1032 ◽  
Author(s):  
Zhi Tong ◽  
C. Lundström ◽  
P. A. Andrekson ◽  
M. Karlsson ◽  
A. Bogris
Keyword(s):  
Optical Amplifiers ◽  
Phase Sensitive

Symmetry breaking in convergent-beam diffraction

1989 ◽  
Vol 47 ◽  
pp. 480-481
Author(s):  
D.J. Eaglesham
Keyword(s):  
Symmetry Breaking ◽  
Point Group ◽  
X Ray Diffraction ◽  
Multiple Diffraction ◽  
Space Groups ◽  
Atomic Displacements ◽  
Small Probe ◽  
Phase Sensitive ◽  
Convergent Beam

Convergent Beam Electron Diffraction is now almost routinely used in the determination of the point- and space-groups of crystalline samples. In addition to its small-probe capability, CBED is also postulated to be more sensitive than X-ray diffraction in determining crystal symmetries. Multiple diffraction is phase-sensitive, so that the distinction between centro- and non-centro-symmetric space groups should be trivial in CBED: in addition, the stronger scattering of electrons may give a general increase in sensitivity to small atomic displacements. However, the sensitivity of CBED symmetry to the crystal point group has rarely been quantified, and CBED is also subject to symmetry-breaking due to local strains and inhomogeneities. The purpose of this paper is to classify the various types of symmetry-breaking, present calculations of the sensitivity, and illustrate symmetry-breaking by surface strains.CBED symmetry determinations usually proceed by determining the diffraction group along various zone axes, and hence finding the point group. The diffraction group can be found using either the intensity distribution in the discs

Editorial. Optical amplifiers for communication

1990 ◽  
Vol 137 (6) ◽  
pp. 345
Author(s):  
M.J. Adams ◽  
P.J.R. Laybourn
Keyword(s):  
Optical Amplifiers
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