 |
Journal articles
Serrodyne optical frequency shifting for heterodyne self-mixing in a distributed-feedback fiber laser
Abstract : We describe an all-fiberized coherent detection system at 1.55 μm using heterodyne self-mixing modulation in a distributed-feedback fiber laser. Frequency shifting of the optical feedback is based on serrodyne phase modulation with an integrated electro-optic modulator, which is a significant advance in the simplification of the self-mixing detection scheme for class B lasers. Accurate measurement of the optical phase difference between the laser electric field and the backscattered electric field demonstrates nanometric displacement detection on noncooperative targets.
https://hal-cea.archives-ouvertes.fr/cea-00344373
Contributor : Chantal Brassy <>
Submitted on : Thursday, December 4, 2008 - 3:55:57 PM
Last modification on : Tuesday, October 6, 2020 - 4:26:40 PM
Contributor : Chantal Brassy <>
Submitted on : Thursday, December 4, 2008 - 3:55:57 PM
Last modification on : Tuesday, October 6, 2020 - 4:26:40 PM