Ultrahigh resolution spectral analysis based on a brillouin fiber laser

Optics Letters

Volumn 35, Issue 3, 2010, Pages 432-434

  Szrinftgiser, Pascal ^a   Mihélic, François ^a,b   Bacquet, Denis ^a   Zemmouri, Jaouad ^b  

^a Osyris Medical   (France)

^b UNIVERSITÉ DES SCIENCES ET TECHNOLOGIES DE LILLE   (France)

Author keywords

[No Author keywords available]

Indexed keywords

BRILLOUIN FIBER LASER; DISTRIBUTED FEEDBACK LASER DIODE; DYNAMIC RANGE; HETERODYNE DETECTION; HETERODYNE TECHNIQUE; OPTICAL MODULATORS; OPTICAL WAVES; SELF-HETERODYNE; SPECTRAL ANALYSIS; ULTRAHIGH RESOLUTION;

FIBER LASERS; FIBERS; LIGHT MODULATORS; OPTICAL FIBERS; SPECTRUM ANALYSIS; SPECTRUM ANALYZERS;

HETERODYNING;

EID: 75749121491     PISSN: 01469592     EISSN: 15394794     Source Type: Journal    
DOI: 10.1364/OL.35.000432     Document Type: Article

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13. The primary reason of this insulation is to avoid instabilities and laser mode hops. However, as there is no active control of the spectrometer temperature, it is also useful to prevent the frequency drifts of the Stokes wave associated with any temperature drifts (around 1 MHz/K). In fact, the zero frequency of the spectra we observe can be automatically centered to the Stokes frequency, thus rendering the device unaffected by long term slow drifts, provided they are sufficiently slow. With a 1 MHz/K frequency drift and a 1 kHz resolution, the temperature drift must be less than 1 mK during the measurement time.