DocumentCode
108516
Title
Cascaded Brillouin fibre lasers coupled to unitravelling carrier photodiodes for narrow linewidth terahertz generation
Author
Ducournau, Guillaume ; Bacquet, D. ; Szriftgiser, P. ; Pavanello, Fabio ; Peytavit, Emilien ; Zaknoune, Mohammed ; Beck, Andre ; Lampin, Jean-Francois
Author_Institution
Inst. d´Electron., de Microelectron. et de Nanotechnol., Univ. Lille 1, Villeneuve-d´Ascq, France
Volume
50
Issue
9
fYear
2014
fDate
Apr-14
Firstpage
690
Lastpage
692
Abstract
Narrow linewidth terahertz (THz) generation using a cascaded Brillouin fibre laser structure and a unitravelling carrier photodiode is investigated. Using two distributed feedback lasers separated by > 1 THz with 1 MHz initial linewidth, the use of the cascaded Brillouin laser greatly increases the linewidth reduction factor compared to a single Brillouin laser structure. The linewidth of the realised THz source is found to be <; 100 Hz at 1014.7 GHz without the use of any active stabilisation of the laser cavity or any microwave reference.
Keywords
distributed feedback lasers; fibre lasers; photodiodes; terahertz wave generation; cascaded Brillouin fibre lasers; distributed feedback lasers; frequency 1014.7 GHz; linewidth reduction factor; narrow linewidth THz generation; unitravelling carrier photodiodes;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2014.0521
Filename
6811100
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