title: Analysis and suppression of nonlinear frequency modulation in an optical frequency-domain reflectometer.
abstract: A new method for monitoring the nonlinearities perturbing the optical frequency sweep in high speed tunable laser sources is presented. The swept-frequency monitoring system comprises a Mach-Zehnder interferometer and simple signal processing steps. It has been implemented in a coherent optical frequency domain reflectometer which allowed to drastically reduce the effects of nonlinear sweep, resulting to a spatial resolution enhancement of 30 times.
authors.affiliation: Faculty of Engineering, Mons, Electromagnetism and Telecommunication Department, Mons, Belgium. kivilcim.yuksel@fpms.ac.be
authors.forename: Kivilcim
authors.initials: K
authors.lastname: Yuksel
authors.forename: Marc
authors.initials: M
authors.lastname: Wuilpart
authors.forename: Patrice
authors.initials: P
authors.lastname: Mégret