Device and method for generating laser pulses by kerr lens based mode locking with a loss-modulation device as a kerr medium
A technology of Kerr medium and laser pulse, applied in the structure/shape of active medium, laser, laser parts and other directions to achieve the effect of promoting mode locking
Pending Publication Date: 2020-10-30
马克斯普朗克格赛尔沙夫特科学促进协会 +1
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Therefore, it cannot be considered that the laser device disclosed in [10] generates pulses by Kerr lens-based mode-locking
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[0051] The following description of a preferred embodiment of the invention relates to the provision of a loss modulating device as a Kerr medium to implement the inventive concept. The details of the design of the laser resonator and its components, in particular the pumping mechanism, dispersion compensation and output coupling of the laser pulses from the laser resonator are not described, as they are themselves in the prior art of pulsed lasers with solid-state gain media known. In particular, the illustrated embodiment can be modified by additional folding of the beam path and / or by dispersion compensation using highly dispersive mirrors or glass wedges arranged in the beam path.
[0052] figure 1 A first exemplary embodiment of a laser device 100 is shown, in which only a single Kerr medium is provided. The laser device 100 includes a laser resonator 10 having a gain medium 20 and a Kerr medium arrangement 30 . Other schematically shown components such as pump laser ...
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Abstract
A laser device (100), being configured for generating laser pulses by Kerr lens based mode locking, comprises a laser resonator (10) with a plurality of resonator mirrors (11.1, 11.2, 11.3) spanning aresonator beam path (12), a solid state gain medium (20) being arranged in the laser resonator (10), a Kerr medium device (30) being arranged with a distance from the gain medium (20) in the laser resonator (10), wherein the Kerr medium device (30) includes at least one Kerr medium being arranged in a focal range of the resonator beam path and being configured for forming the laser pulses by thenonlinear Kerr effect, and a loss-modulation device (31, 32) having a modulator medium, which is capable of modulating a power loss of the laser pulses generated in the laser resonator (10), wherein the Kerr medium device (30) includes the modulator medium of the loss- modulation device (31, 32) as the at least one Kerr medium having an optical non-linearity being adapted for both of creating theKerr lens based mode-locking in the laser resonator and modulating the power loss in the laser resonator. Furthermore, a method of generating laser pulses by Kerr lens based mode locking is described,wherein a loss-modulation device (31, 32) is used for both of introducing a Kerr effect in the laser resonator (10) and modulating the power loss.
Description
technical field [0001] The present invention relates to laser devices and methods for generating laser pulses by mode locking based on Kerr lenses. The application of the invention is especially in all fields in which laser pulses are used, in particular for the purposes of measurement, sample excitation, data transmission and material processing. Background technique [0002] In this specification, reference is made to the following cited publications for illustration of the prior art, especially with regard to loss modulation in laser oscillators and mode-locked generation of fs laser pulses by Kerr lenses: [0003] [1] US 2016 / 0329677 A1; [0004] [2] M. Seidel et al. in "Opt. Lett." 41, 1853-1856 (2016); [0005] [3] O. Pronin et al. in "Nature Communications" 6, ncomms7988 (2015); [0006] [4] R.Boyd et al.in "Optical Engineering" 16(5), 165452(1977); [0007] [5] J. Zhang et al.in "2015 European Conference on Lasers and Electro-Optics-European Quantum Electronics C...
Claims
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IPC IPC(8): H01S3/098H01S3/13H01S3/00H01S3/06H01S3/08H01S3/081H01S3/094H01S3/106H01S3/107H01S3/136H01S3/16
CPCH01S3/0805H01S3/0813H01S3/094H01S3/1068H01S3/107H01S3/1112H01S3/1307H01S3/136H01S3/1618H01S3/0014H01S3/0604H01S3/1306H01S3/1643
Inventor 奥列格·普罗宁费伦茨·克劳斯塞巴斯蒂安·格罗梅耶乔纳森·布朗斯
Owner 马克斯普朗克格赛尔沙夫特科学促进协会