Cobolt Ab

Katrin Ekvall

Håkan Karlsson

Stefan Spiekermann

Fredrik Laurell

Valdas Pasiskevicius

Sandra Johansson

Shunhua Wang

A method of generating coherent radiation, wherein a first fundamental beam of radiation from a four level laser and a second fundamental beam of radiation from a three level laser are mixed in a non-linear body to obtain an output beam at the sum frequency of the two fundamental beams. The invention also relates to an arrangement for carrying out the method.

Optical frequency mixing

A method and a device for generating visible coherent radiation is disclosed. The visible coherent radiation is generated by sum-frequency mixing of a first fundamental beam from a diode laser and a second fundamental beam from a diode-pumped solid-state laser. The mixing is performed by means of a quasi-phasematching element provided within the resonant cavity of the solid-state laser. The first fundamental beam is stabilized by providing feedback to the diode laser.

Coherent light source based on sum-frequency mixing

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Stockholm, Sweden

Katrin Ekvall