Frekvencijska stabilizacija lasera za mjeriteljstvo duljine

master's thesis

• Title (english): Frequency stabilisation of lasers for lenght metrology
• Author: Barać Vjencislav
• Mentor: Marko Katić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2016-12-08, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Precision Mechanical Engineering

Abstract

Tema ovog diplomskog rada je frekvencijska stabilizacija lasera za mjeriteljstvo duljine. Kako bi se razumjeli efekti koji doprinose nestabilnosti lasera, a tako i efekti pomoću koji se stabilizira laser, ovaj rad u prvom dijelu ulazi u područje iza teorije kontinuuma. U tom djelu se objašnjava kako funkcionira laser na atomskoj razini sa naglaskom na efekte koji su od značaja pri frekvencijskoj stabilizaciji. U drugom dijelu rada se objašnjavaju popularne metode stabilizacije lasera za mjeriteljstvo duljine potkrijepljeno nužnim matematičkim aparatom. Konačno, u trećem dijelu rada se provode praktična mjerenja danih lasera sa nužnom obradom i tumačenjem rezultata. Na kraju je provedena stabilizacija poluvodičkog lasera metodom saturacijske spektroskopije na hiperfini prijelaz rubidija.

Abstract (english)

The subject of this Master thesis is the laser frequency stabilisation for length metrology. In order to understand the effects that contribute to the instability of a laser, as well as the effects used to stabilise lasers, this thesis has been split into three sections which include background theory and practical work. The first section comprises a literature review on physics beyond continuum theory and an explanation of how lasers work on atomic scale with focus on effects which are important in frequency stabilisation. The second section explains popular techniques of laser frequency stabilisation for length metrology supported by the necessary mathematical apparatus. In the third section, measurements of given lasers are made with necessary processing and interpretation of results. Finally, stabilisation of a semiconductor laser is made following a method of saturation spectroscopy of hyperfine transition in rubidium.

• Keywords: laseri; fizika lasera; HeNe laser; poluvodički laser; frekvencijska stabilizacija lasera; metode stabilizacije u mjeriteljstvu; laseri u mjeriteljstvu
• Keywords (english): lasers; laser physics; HeNe laser; semiconductor laser; laser frequency stabilisation; methods of frequency stabilisation in metrology; lasers in metrology
• Language: croatian
• URN:NBN: urn:nbn:hr:235:257724
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 18:18:15