Laser Device Comprising a Diffraction Grating and Coupled Laser Resonators

The present invention provides a laser device wherein one diffraction grating (1) and at least two reflectors (4, 2) are arranged such that two coupled resonators (A, B) are formed for the light path. This laser device is an arrangement forming a first optical resonator (A) comprising a first (4) and a second (2) reflector including in its light path the diffraction by the grating (1). The second reflector (2) is arranged perpendicularly to an order of diffraction of the grating (1). Coupled with the first resonator (A), there is provided a second mirror- reflect ive resonator (B) between a mirror-reflective surface of the grating (1) and the second reflector (2). In the case of the grating (1) having an even number of ports, the second resonator (B) needs completion by a third reflector (3) arranged to reflect light from specular reflection by the grating (1) back to the grating (1). For gratings (1) having an odd number of ports, the second reflector (2) is arranged in parallel to the grating (1). The laser medium (5) is preferably arranged between the first reflector (4) and the grating (1).

Patents:
EP 2,020,063

Inventor(s): SCHNABEL ROMAN [DE]; BURMEISTER OLIVER [DE]; BUNKOWSKI ALEXANDER [DE]; THUERING ANDRE [DE]; RINKLEFF ROLF-HERMANN [DE]; DANZMANN

Type of Offer: Sale



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