Generalized-moment-expansion method for intensity correlation functions of the single-mode laser

1991 ◽  
Vol 44 (9) ◽  
pp. 6087-6091 ◽  
Author(s):  
J. M. Noriega ◽  
L. Pesquera ◽  
M. A. Rodrguez
Keyword(s):  
Correlation Functions ◽  
Single Mode ◽  
Expansion Method ◽  
Intensity Correlation ◽  
Mode Laser ◽  
Single Mode Laser ◽  
Moment Expansion ◽  
Generalized Moment

scholarly journals Intensity Correlation Functions for 'Thermalised' TEMn0 Laser Beams

1986 ◽  
Vol 39 (4) ◽  
pp. 505
Author(s):  
R Hoare ◽  
R Mardling ◽  
GJ Troup
Keyword(s):  
Laser Beam ◽  
Correlation Functions ◽  
Single Mode ◽  
Laser Beams ◽  
Ground Glass ◽  
Intensity Correlation ◽  
Mode Laser ◽  
Single Mode Laser ◽  
Glass Disc ◽  
Useful Life

A well-stabilised, single mode laser beam will give zero intensity correlation. However, a laser beam may be 'thermalised' by shining it on a rotating ground glass disc, and then intensity correlation experiments will give nonzero results. We present here calculations of the intensity correlation functions of the TEMlO, TEM20, TEM30 and TEM40 Gaussian-Hermite beams. We were led to perform these calculations by the results of intensity correlation measurements on a laser with 'butted-on' mirrors nearing the end of its useful life.

EFFECTS OF CORRELATION BETWEEN REAL AND IMAGINARY PARTS OF THE QUADRATIC PUMP NOISE ON THE INTENSITY FLUCTUATION OF A SINGLE-MODE LASER SYSTEM

2009 ◽  
Vol 23 (02) ◽  
pp. 155-161
Author(s):  
G. H. ZHAO ◽  
Y. L. XIANG ◽  
D. C. MEI
Keyword(s):  
Correlation Function ◽  
Relaxation Time ◽  
Intensity Fluctuation ◽  
Laser System ◽  
Single Mode ◽  
Intensity Correlation ◽  
Mode Laser ◽  
The Real ◽  
Single Mode Laser ◽  
Intensity Correlation Function

The effects of the correlations between real and imaginary parts of the quadratic pump noise on the normalized intensity correlation function and the associated relaxation time of a single-mode laser model were investigated. The expressions of the intensity correlation function C(s) and the relaxation time Tc were derived. Based on numerical computations, we found that Tc monotonously increases as the strength λp of correlation between the real and imaginary parts of quadratic pump noise increases and the larger λp value is, the slower C(s) decays. The presence of correlations between the real and imaginary parts of the quadratic pump noise causes the intensity fluctuation to increase.

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