AN EXTENDED CAVITY DIODE LASER

摘要

A diode laser has a diffraction grating acting as output coupler and a semiconductor laser diode structure with an emission facet arranged to form an extended cavity with the diffraction grating. Mounting means are arranged to permit rotational movement of the diffraction grating with respect to the emission facet for wavelength selection. The mounting means is arranged to permit bulk translation of the diffraction grating with respect to the emission facet to maintain a single optical mode of operation to be maintained.