METHOD OF SCANNING AN OPTICAL BEAM USING AN ACOUSTO-OPTIC DEFLECTOR DRIVEN BY CHIRPED ACOUSTIC SIGNALS

The object of the invention relates to a method for scanning with an optical beam (50) using a first acousto-optic deflector (15, 15′) having an optical axis along a Z-axis and at least one acousto-optic crystal layer (14), involving directing the optical beam (50) in the first acousto-optic deflect...

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Bibliographische Detailangaben
Hauptverfasser:	KATONA, Gergely, MAAK, Pal, ROZSA, Balazs Jozsef, SULCZ-JUDAK, Linda, CHIOVINI, Balazs, FEHER, Andras, SZALAY, Gergely, VERESS, Mate, SZADAI, Zoltan
Format:	Patent
Sprache:	eng ; hun
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The object of the invention relates to a method for scanning with an optical beam (50) using a first acousto-optic deflector (15, 15′) having an optical axis along a Z-axis and at least one acousto-optic crystal layer (14), involving directing the optical beam (50) in the first acousto-optic deflector (15, 15′), and deflecting the optical beam (50) along an X-axis perpendicular to the Z-axis by means of the first acousto-optic deflector (15, 15), during which generating a plurality of acoustic chirp signals (30) in the at least one acousto-optic crystal layer (14) of the acousto-optic deflector (15, 15′) by-generating a first acoustic chirp signal (30a) having a duration of τ in the acousto-optic crystal layer (14), then-generating a second acoustic chirp signal (30b) in the acousto-optic crystal layer (14) within a τ period of time counted from the start of the generation of the first acoustic chirp signal (30a).