Advanced Laser (OMS/AL)5.0 ECTS
(englische Bezeichnung: Advanced Laser)
(Prüfungsordnungsmodul: Advanced Laser)

Lehrveranstaltungen:

• • Advanced Laser
    (Vorlesung mit Übung, 4 SWS, Nicolas Joly, Fr, 12:30 - 16:30, AOT-Kursraum; ab 6.5.2022; First meeting: 6 May 2022)

Inhalt:

This module naturally follows the “Basics of Lasers” module and aims at deepen the knowledge on a few specific aspects of lasers. In particular we will study the Z-cavity of one of the most popular laser system: the Titanium: sapphire laser. The purpose here is to show why simpler cavity is not possible. It requires understanding properly the concept of stability of laser cavity and introduces the problem of astigmatism. In a second stage we see how dispersion effects can hamper the properties of a mode-locked laser system and see how to circumvent this. We then study the different method used to characterize ultrashort laser pulse. This starts from basics concepts of autocorrelation but review more advanced techniques allowing to retrieve fully the amplitude and phase of a laser pulse. Towards the end of the lecture several topics are possible and it will be chosen together with the students. This can be for instance (i) the polarization and the Jones’ formalism (ii) the Maxwell-Bloch equations (iii) the origin of spontaneous emission. Finally in order to broaden the contents of the lecture the students are asked to prepare one half-an-hour presentation of the topics of their choice. The topics are discussed during the first two sessions of the lecture and must focus on a physical aspect of laser.

Lernziele und Kompetenzen:

Students

• Understand the problem of dispersion in a laser cavity and establish a strategy to balance this problem in order to achieve transform-limited ultrashort pulses

• Estimate the duration of a laser pulse and adapt the technique to the level of precision required

• Understand the design of laser cavities

Literatur:

• “Laser” by A.E. Siegman, University Science book, 1986

• “Handbook of Lasers and Optics” by F. Träger, Springer, 2007

• “Les lasers” by D.Dangoisse, D. Hennequin and V. Zehnlé)Dhaoui, Dunod 1998

• “Principles of Lasers”, 5th ed. by Orazio Svelto, Springer 2010

• “Laser dynamics” by Thomas Erneux and Pierre Glorieux, Cambridge University Press 2010

Verwendbarkeit des Moduls / Einpassung in den Musterstudienplan:

1. Advanced Optical Technologies (Master of Science)
   (Po-Vers. 2018w | TechFak | Advanced Optical Technologies (Master of Science) | Gesamtkonto | Major Topics | Physics of Light | Advanced Laser)
2. Advanced Optical Technologies (Master of Science)
   (Po-Vers. 2018w | TechFak | Advanced Optical Technologies (Master of Science) | Gesamtkonto | Major Topics | Optical Material Processing | Advanced Laser)
3. Advanced Optical Technologies (Master of Science)
   (Po-Vers. 2018w | TechFak | Advanced Optical Technologies (Master of Science) | Gesamtkonto | Major Topics | Optical Materials and Systems | Advanced Laser)

Studien-/Prüfungsleistungen:

Advanced Laser (Prüfungsnummer: 21301)

(englischer Titel: Advanced Laser)

Prüfungsleistung, mündliche Prüfung, Dauer (in Minuten): 30, benotet, 5 ECTS

Anteil an der Berechnung der Modulnote: 100.0 %

Erstablegung: SS 2022, 1. Wdh.: WS 2022/2023

1. Prüfer:

Nicolas Joly