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Hollemann
Guenter Hollemann, Luebeck DE
| Patent application number | Description | Published |
|---|---|---|
| 20100226396 | Optical Arrangement For Pumping Solid-State Lasers - In an optical arrangement for pumping solid-state lasers, there is the object of producing an intensity distribution across the beam cross section of the pump radiation with a rectangular intensity profile, which intensity distribution is homogeneous at least in a region corresponding to the Rayleigh range in the direction of the beam propagation without the beam quality being substantially impaired by the homogenization. The pump arrangement contains a rod-shaped homogenizer ( | 09-09-2010 |
Guenter Hollemann, Jena DE
| Patent application number | Description | Published |
|---|---|---|
| 20080253407 | LASER AND METHOD FOR GENERATING PULSED LASER RADIATION - A laser for generating pulsed laser radiation is provided. The laser includes a resonator, a laser-active medium arranged in the resonator, and an acousto-optic modulator arranged in the resonator. The modulator can be put in a first and a second state so as to set the resonator quality, the resonator quality being lower in the first state than in the second state, and comprising a control unit for controlling the modulator. The control unit effects phase-locked coupling of a high-frequency signal to be applied to the modulator in one of said two states, in order to generate a predetermined sound field in the modulator, and a switching signal designed to switch the modulator periodically between the two states. | 10-16-2008 |
Gunter Hollemann, Jena DE
| Patent application number | Description | Published |
|---|---|---|
| 20080310462 | Anamorphotic solid-sate laser - A laser system, which is used in material processing to produce a radiation line of small width and uniform high intensity in the longitudinal direction, produces radiation that has different mode numbers M | 12-18-2008 |