## Proceedings of LFNM'...: International Workshop on Laser and Fiber-optical Networks Modeling, Volume 6Institution of Electrical and Electronics Engineers, 2004 - Fiber optics |

### From inside the book

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Page 11

The

efficiently converting it into a nearly Gaussian

can be performed in principle by means of two specially designed external phase

...

The

**beam**quality of a single high - order mode**beam**can be improved byefficiently converting it into a nearly Gaussian

**beam**( 11 ) . Such a conversioncan be performed in principle by means of two specially designed external phase

...

Page 11

Phase tuning plate B

Output 50 %

Mirror Mirror coating Sharp mirror HG10 distribution AR coating ( a ) ( b ) Figure 4

...

Phase tuning plate B

**Beam**splitter 50 % Nearly Gaussian mode**Beam**splitterOutput 50 %

**beam**Mirror HG10 distribution Output**beam**y - tud - - - - - - - - -Mirror Mirror coating Sharp mirror HG10 distribution AR coating ( a ) ( b ) Figure 4

...

Page 140

In all laser machines it is necessary to have devices for measuring of laser

radiation parameters like the power of continuous lasers or the pulse energy of

pulsed lasers , intensity distribution in the cross - section of the

diameter ...

In all laser machines it is necessary to have devices for measuring of laser

radiation parameters like the power of continuous lasers or the pulse energy of

pulsed lasers , intensity distribution in the cross - section of the

**beam**,**beam**diameter ...

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### Contents

L Lasers and Resonators | 11 |

Optically coupled lasers Invited | 11 |

Mathematical models applied to optical and thermal diagnostic of semiconductor | 17 |

Copyright | |

13 other sections not shown

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absorption active allows amplitude analysis angle aperture application approximation band beam calculated characteristics coefficient coherent components considered constant corresponds crystal defined density dependence described determined developed devices diffraction direction distance distribution e-mail effect efficiency electric electron elements emission energy equal equation excitation experimental expression fiber fibre field Figure frequency function given grating IEEE increase initial intensity interference Kharkiv laser layer length light losses material means measured medium method mirror mode modulation nonlinear observed obtained operation optical oscillators output parameters phase photon Physics plane polarization possible presented problem processes propagation properties pulse quantum radiation range received REFERENCES reflection refraction region relative resonator sample scattering shown shows signal solution spectral spectrum stability structure surface temperature Ukraine University wave waveguide wavelength