Continuous wave laser diode GC-1270-60-TO-200-A

solid-stateinfrared

Gain-chip is the irreplaceable component as a gain medium for the building of the tunable diode laser or high stable external cavity diode laser. Gain-chip is similar to laser diode chip except the fact that it has deep antireflecting coating on one or both facets which significantly increases threshold of self lasing or eliminate it. Typical external cavity diode laser configurations are Littrow- and Littman/Metcalf cavities. For the Littrow configuration, a diffraction grating is mounted in a way that light of the desired wavelength is diffracted back along the incident beam. Wavelength is scanned by rotating the grating. Generally an intracavity achromatic lens is used to collimate expanded beam on a relatively large area of the grating. The zero order diffracted beam can be used as the output laser beam. Features: * Optimized for wavelength locked operation in external cavity system * Broad hopping free tuning range * High Signal/ASE ratio Application: * External cavity tunable laser