Toptica Photonics Ag

Alexander Sell

Thomas A Puppe

Armin Zach

Nico Vieweg

A laser apparatus including a pulsed laser radiation source is disclosed, wherein the laser radiation has spectral components in at least two wavelength ranges W, Wthat differ from one another, and a dispersion control element including at least one dielectric multilayer mirror, wherein the laser radiation is reflected one or more times at the multilayer mirror. The multilayer mirror is reflective in the two wavelength ranges W, W, and the reflection of the spectral component in the second wavelength range Whas a time delay relative to the reflection of the spectral component in the first wavelength range Wsuch that the spectral components of the laser radiation reflected at the multilayer mirror in the two wavelength ranges W, Wcoincide in time in an interaction center of the laser apparatus, and a nonlinear optical element is situated in the interaction center.

Laser apparatus with dispersion control

A device for generating temporally distant light pulses is provided, the device including at least a first light source for generating a first sequence of light pulses at a first repetition rate, and a second light source for generating a second sequence of light pulses at a second repetition rate. In some embodiments the device includes at least one actuator element which influences the first and/or the second repetition rate, and a control element which charges the actuator element with a periodical modulation signal for periodical variation of the first and/or second repetition rate. A control circuit is also provided including at least a phase detector, a corrective element, a control element, and a superposition element that forms an actuator signal from a modulation signal and an output signal of the control element, and which charges the actuator element with the actuator signal.

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Friedrichshafen, Germany

Alexander Sell