Laser Technique 1

Vztahy:

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

Garant předmětu:

Lecturer:

Tutor:

Supervisor:

Department of Laser Physics and Photonics

Synopsis:

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.

Requirements:

12ULAT

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:

Knowledge:

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

Skills:

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

Study materials:

Key references:

[1] V. Kubeček-texts for lectures Otevřené rezonátory, http://people.fjfi.cvut.cz/kubecvac

[2] M. Vrbová,J. Šulc, „Interakce rezonančního záření s látkou“, skriptum FJFI ČVUT Praha, 2006

Recommended references:

[3] B.E.A. Saleh a M.C. Teich, „Základy fotoniky“. Matfyzpress, Praha 1994

[4] M.Vrbová a kolektiv, Oborová encyklopedie „Lasery a moderní optika“, Prometheus, Praha 1994

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans: