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Master's Dissertation
DOI
https://doi.org/10.11606/D.43.2013.tde-21102014-154229
Document
Author
Full name
Flávio Campopiano Dias de Moraes
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2013
Supervisor
Committee
Nussenzveig, Paulo Alberto (President)
Cavasso Filho, Reinaldo Luiz
Silva, Adilson Jose da
Title in Portuguese
Construção e caracterização de um laser contínuo de titânio-safira
Keywords in Portuguese
Laser
Ruídos quânticos
TI:SAF
Titânio-Safira
Abstract in Portuguese
Durante este trabalho construímos e caracterizamos um laser de titânio-safira para ser utilizado em experimentos de ótica quântica e ótica não linear, no Laboratório de Manipulação Coerente de Átomos e Luz (LMCAL). Constatamos que, operando em 780nm, o laser construído têm eciência de 51%, atingindo uma potência de saída de 832mW para uma potência de bombeio de 5W, e sua largura de linha é da ordem de 0,6MHz. Analisamos também o espectro de ruído do laser e concluímos que, para frequências de análise a partir de 10MHz, a luz emitida corresponde a um estado coerente, com ruído quântico muito inferior ao dos lasers de diodo que vêm sendo utilizados no laboratório.
Title in English
Construction and characterization of a CW Titanium-Saphire laser
Keywords in English
Laser
Quantum noise
TI:SAPPHIRE
Tinanium-Saphire
Abstract in English
We built and characterized a titanium-sapphire laser to be used in quantum optics and non linear optics experiments in the Laboratory for Coherent Manipulation of Atoms and Light - LMCAL (Laboratório de Manipulação Coerente de Átomos e Luz). We veried that the laser has 51% efficiency when operating at 780nm, reaching 832mW output power for a pump power of 5W, and its linewidth is approximately 0.6MHz. We also analyzed the laser noise spectrum and found that, for analysis frequencies above 10MHz, the laser output is in a coherent state, with much lower quantum noise than the diode lasers that have been used in our laboratory.
 
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54701Moraes.pdf (27.36 Mbytes)
Publishing Date
2014-10-21
 
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