Safia Mohand Ousaid, Germain Bourcier, Arnaud Fernandez, Olivier Llopis, Julien Lumeau, Antonin Moreau, Thomas Bunel, Matteo Conforti, Arnaud Mussot, Vincent Crozatier, Stéphane Balac
Low phase noise and narrow linewidth lasers are achieved by implementing self-injection locking of a DFB laser on two distinct fiber Fabry-Perot resonators. More than 45 dB improvement of the laser phase or frequency noise is observed when the laser is locked. In both cases, a frequency noise floor below 1 Hz2 /Hz is measured. The integrated linewidth of the best of the two lasers is computed to be in the range of 400 Hz and appears to be dominated by vibration noise close to the carrier...
April 15, 2024: Optics Letters