Polarization dynamics of a monochromatic laser with linear phase anisotropy

1990 ◽  
Vol 80 (3) ◽  
pp. 439-445 ◽  
Author(s):  
Siegfried Grossmann ◽  
Demin Yao
Keyword(s):  
Linear Phase ◽  
Phase Anisotropy

Role of Linear Phase Anisotropy in a Zeeman Laser

1969 ◽  
Vol 180 (2) ◽  
pp. 624-625 ◽  
Author(s):  
W. van Haeringen ◽  
H. de Lang
Keyword(s):  
Linear Phase ◽  
Phase Anisotropy ◽  
Zeeman Laser

A Laser Limit Cycle - An Analytical Study

1990 ◽  
Vol 45 (7) ◽  
pp. 903-910
Author(s):  
Demin Yao ◽  
Siegfried Großmann
Keyword(s):  
Limit Cycle ◽  
Analytical Study ◽  
Perturbation Methods ◽  
Cycle Period ◽  
Polarization Mode ◽  
Linear Phase ◽  
Phase Anisotropy ◽  
Mode Laser ◽  
Small Intensity ◽  
Explicit Formulae

AbstractThe limit cycle behaviour of the intensity and of the polarization of a monochromatic two-polarization- mode laser with an intensity coupling asymmetry and a linear phase anisotropy is studied analytically. In a previous paper we found such limit cycle oscillations numerically. Explicit formulae are derived by perturbation methods for the case of small intensity coupling asymmetry and for the case of large pumping, respectively, which describe the dependence on the laser parameters of the limit cycle period as well as of its amplitude.

Influence of linear phase anisotropy induced in the active medium on the characteristics of gas-laser radiation

1982 ◽  
Vol 36 (5) ◽  
pp. 489-493
Author(s):  
A. P. Voitovich ◽  
V. S. Kalinov ◽  
A. Ya. Smirnov ◽  
L. L. Teplyashin
Keyword(s):  
Laser Radiation ◽  
Active Medium ◽  
Linear Phase ◽  
Phase Anisotropy ◽  
Gas Laser

On strategy for determining displacement solely from perturbed phase of self mixing interferometry

2020 ◽  
Author(s):  
Junaid Khan
Keyword(s):  
Coupling Factor ◽  
Moving Target ◽  
Linear Phase ◽  
Spectral Filtering ◽  
Signal Shape ◽  
Phase Equation ◽  
Sensing Applications ◽  
Computationally Expensive ◽  
Fixed Point Methods ◽  
Factor C

While self mixing interferometry(SMI) has proven to be suitable for displacement measurement and other sensing applications,its characteristic self mixing signal shape is strongly governed by the non-linear phase equation which forms relation between perturbed and unperturbed phase of self mixing laser.Therefore, while it is desirable for robust estimation of displacement of moving target, the algorithms to achieve this must have an objective strategy which can be achieved by understanding the characteristic of extracting knowledge of perturbed phase from unperturbed phase. Therefore, it has been proved and shown that such strategy must not involve sole methods where perturbed phase is continuous function of unperturbed phase (e.g:Taylor series or fixed point methods) or through successive displacements (e.g: variations of Gauss Seidal method). Subset of this strategy is to perform spectral filtering of perturbed phase followed by perturbative or homotopic deformation. A less computationally expensive approach of this strategy is adopted to achieve displacement with mean error of 62.2nm covering all feedback regimes, when coupling factor 'C' is unknown.<br>

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