title: Ultrahigh resolution spectral analysis based on a Brillouin fiber laser.
abstract: We report what we believe to be a novel experimental heterodyne technique for the spectral analysis of continuous optical wave sources. The achieved resolution is as low as the kilohertz level, with a dynamic range in excess of 90 dB. The technique is based on a heterodyne detection between the source under test (SUT) and a Brillouin fiber laser generated by this SUT. Contrary to standard self-heterodyne techniques only a few tens of meters of optical fiber is required without the need of any optical modulators. This spectrometer has been used to characterize a distributed-feedback laser diode and a Brillouin fiber laser.
authors.affiliation: Laboratoire PhLAM, UMR CNRS 8523, Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France.
authors.forename: François
authors.initials: F
authors.lastname: Mihélic
authors.forename: Denis
authors.initials: D
authors.lastname: Bacquet
authors.forename: Jaouad
authors.initials: J
authors.lastname: Zemmouri
authors.forename: Pascal
authors.initials: P
authors.lastname: Szriftgiser