Semiconductor laser array stabilising arrangement - provides fibre-shaped reflectors so that radiation characteristic extends as ray along X=axis

摘要

The semiconductor laser array (HLA) is coupled to an external system of passive wave guides (12) via the laser window (11). Each wave guide (12) is connected to a Y-connection point which leads into a Bragg grating (14). The laser array may be damped by an antireflective layer on the side of the array nearest the wave guides. The reflection of this layer is less than 1 per cent. The Bragg grating may be used as a laser mirror. USE - Stabilising semiconductor laser array in diode pumped fixed body laser, fibre laser or a local oscillator.