Compact ultra fast laser

A semiconductor saturable absorber mirror (SESAM) with resonant behaviour is formed by a specific design of a layered structure (43-48). A solid state laser comprises a laser gain medium (1), pumping means (4,7) for pumping the laser gain medium, and a laser cavity having a first end (3) and a secon...

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Bibliographische Detailangaben
Hauptverfasser:	KOPF, DANIEL, BÜNTING, UDO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS 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 DEVICES USING STIMULATED EMISSION ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	A semiconductor saturable absorber mirror (SESAM) with resonant behaviour is formed by a specific design of a layered structure (43-48). A solid state laser comprises a laser gain medium (1), pumping means (4,7) for pumping the laser gain medium, and a laser cavity having a first end (3) and a second end (17), wherein the laser gain medium is at, or in the vicinity of, said first end of said cavity. The semiconductor saturable absorber mirror (SESAM) (17) is placed in the cavity, especially at the second end of the cavity. The laser gain medium can comprise at least one face (3) for receiving pumping energy from the pumping means, the face being made reflective at a laser frequency of the laser, so that it can form the first end of the laser cavity. The resulting setup can be used for generating femtosecond laser pulses.