Estudo da estabilidade do acoplamento de modos de um laser a fibra dopada com érbio com pulsos de femtossegundos e taxa de 10 GHz

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

In this work we show a study of mode-locking stabilization in an Erbium doped fiber laser with assynchronous mode-locking generating ultra-short pulses at the rate of 10 GHz. The fiber effects are presented as well as the mode-locking techniques. Also is presented a study of energy pulse stabilization, frequency and cavity, in addition an overview of stabilization techniques. Using different cavities setups with different accumulated dispersion, we analyzed the stabilization of the pulse. The temperature effects and state of polarization were studied too and we found that the temperature has greater influence on the stability. After the results of passive approach of the stabilization, we studied two methods of active stabilization, using a feedback and proposed a new one that is a new way of controlling the frequency variations in the cavity. By the use the asynchronous mode-locking, through the cavity frequency, we control the modulator frequency. For the implementation of our proposal, there are two approaches to data acquisition, using a frequency counter or a spectrum analyzer, in this work the tests were performed with the first.

ASSUNTO(S)

fiber laser ultrashort pulse stability laser a fibra pulso ultracurto engenharia eletrica estabilidade comunicações ópticas optical communication

ACESSO AO ARTIGO

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