Laser Technique 1

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Code Completion Credits Range Language
12LTB1 Z,ZK 3 2P+1C Czech

It is not possible to register for the course 12LTB1 if the student is concurrently registered for or has already completed the course 12LT1 (mutually exclusive courses).

It is not possible to register for the course 12LTB1 if the student is concurrently registered for or has previously completed the course 12LT2 (mutually exclusive courses).

Garant předmětu:
Helena Jelínková
Helena Jelínková, Michal Němec, Jan Šulc
Helena Jelínková, Michal Němec, Jan Šulc
Department of Physical Electronics

Open resonators. Stability. Transverse and Longitudinal Modes. Elements of Open Resonators. Threshold of laser oscillations. Gausian beam as an approximation of the fundamental mode. ABCD method. Optical radiation propagation in resonant medium. Two-level approximation. Equations for polarisation and inversion, dispersion, saturation. Coherent and non-coherent pulse propagation. Optical solitons. Photon echo. Superradiation. Amplified spontaneous emission Lasers without optical resonator.



Syllabus of lectures:

1. Laser oscillation and modes of open resonator.

2. Intensity distribution of individual transversal mode.Gaussian beam as approximation of fundamental transversal mode.

3. Determination of fundamental transversal mode for two mirror resonator

4. Stability of open resonator. Unstable resonators

5. Solution of open resonators using ABCD matrix

6. Longitudinal modes.

7. Semiclassical theory of propagation of resonant radiation in two-level system

8. Propagation of stationary plane wave in active medium

9. Propagation of optical pulses in active medium

10. Laser rate equation approximation

11. Rate equations for Q-switched laser

12. Coherent pulse propagation and amplified spontaneous emission.

Syllabus of tutorials:

Examples of problems are solved closely connected to the subject of each lecture.

Study Objective:


of basic properies of open resonators and interaction of elmag radiation with matter


application of obtained knowledge for design and analysis of an real laser resonator

Study materials:

Key references:

[1]H. J.Eichler, J. Eichler, O.Lux, Lasers -Basics, Advances and Applications, Springer-Verlag Berlin, 2018.

Recommended references:

[2] W.Koechner, Solid-State Laser Engineering, Springer-Verlag Berlin Heidelberg,New York 1999.

[3] B.E.A.Saleh, M.C. Teich, Fundamentals of photonics, Wiley 2007.

[4] M. Vrbová a kol.: Oborová encyklopedie,“Lasery a moderníoptika” Prometheus, Praha 1994.

Time-table for winter semester 2023/2024:
Time-table is not available yet
Time-table for summer semester 2023/2024:
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The course is a part of the following study plans:
Data valid to 2023-12-08
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