Mode-coupled laser

Laser as defined by the preceding claim, characterized in that the parameter varying means is designed to vary the parameter such that the emitted laser output evens out, especially averaged over at least one resonator roundtrip time.

Laser as defined by any of the preceding claims, characterized in that the parameter varying means is designed to even out the output over times in the range of one resonator roundtrip time.

Laser as defined by any of the preceding claims, characterized in that the parameter varying means is designed to even out the output averaged over a resonator roundtrip time to better than 10%, preferably better than 5%.

Laser as defined by any of the preceding claims, characterized in that a means for integrating and/or averaging high-speed variations of the value related to the laser output is provided and the parameter varying means is designed to vary the parameter in response to the averaged and/or integrated value.

Laser as defined by any of the preceding claims, characterized in that the parameter varying means is designed to vary the parameter in response to the deviation of the detected value from a target value.

Laser as defined by any of the preceding claims, characterized in that the parameter varying means is designed to vary the parameter with proportional, differential and/or integral behavior relative to the deviation of the detected value from a target value.

Laser as defined by any of the preceding claims, characterized in that the mode-coupling is passive.

Laser as defined by any of the preceding claims, characterized in that an element is provided that absorbs and/or reflects in dependence of the output.

Laser as defined by any of the preceding claims, characterized in that an at least partially saturable absorber is provided as an absorbing and/or reflecting element.

Laser as defined by any of the preceding claims, characterized in that the at least one parameter is the supplied pumping power.

Laser as defined by any of the preceding claims, characterized in that a resonator-internal frequency doubler is provided.

Laser as defined by any of the preceding claims, characterized in that a loss modulator is provided whose loss can be modulated as a variable parameter, especially mechanically, acoustically, optically and/or electrooptically.

Laser as defined by any of the preceding claims, characterized in that at least one light-sensitive element is provided as a detection means for detecting the . . . to the emitted laser output.

Laser as defined by any of the preceding claims which has spiking behavior if the at least one parameter is not varied in response to the detected value.

Laser as defined by any of the preceding claims, where a laser medium is used having lifetimes at one of or at the top level, at least 1 μs, preferably at least 10 μs, especially above 50 μsec.

Laser with a decoupling means for emitting a laser output depending on at least one influenceable parameter and a means for cavity dumping, characterized in that a detection means is provided for detecting a value related to the emitted laser output and a parameter varying means for varying the at least one parameter in response to the detected value.

Device for a laser with a decoupling means for emitting a laser output depending on at least one influenceable parameter and a mode-coupling means for coupling a plurality of the modes of the resonator, characterized in that the device has at least one signal line for guiding a signal obtained by means of a detection means for detecting a value related to the laser output and a setting means for setting a variation of the at least one parameter in dependence of the signal on the signal line.

Method for stabilizing a laser with a mode-coupling means for coupling a plurality of the modes of the resonator and a detection means for detecting a value related to the emitted laser output and a parameter varying means for varying the at least one parameter in response to the detected value, characterized in that a value representative for the emitted laser output is detected and the laser output is controlled by means of varying the at least one parameter such that the emitted laser output evens out.

Method for initiating mode-coupling in a laser with a mode-coupling means for coupling a plurality of the modes of the resonator and a detection means for detecting a value related to the emitted laser output and a parameter varying means for varying the at least one parameter in response to the detected value, characterized in that by especially pulse-like variation at least of the at least one parameter mode-coupling is initiated.