METHOD AND DEVICE FOR WAVELENGTH SWITCHING OF A LASER SOURCE

摘要

The invention concerns a method and a device for wavelength switching of a laser source comprising an external cavity (2) with optical fibre (4) Bragg grating (5). The method consists in spatially switching in the external cavity a plurality of optical fibres (4) each bearing a different Bragg grating (5). The device comprises a spatial switch (3) for switching in the external cavity a plurality of optical fibres (4) each bearing a different Bragg grating (5).