NOVEL PASSIVELY Q-SWITCHED LASER

Passively Q-switched lasers and short wave infrared (SWIR) electro-optical systems including such lasers. A passively Q-switched laser may include a gain medium (GM) having a stimulated emission cross section σSE, a saturable absorber (SA) having an absorption cross section (σa) which is less than t...

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Bibliographische Detailangaben
Hauptverfasser:	DANAN, Ariel, SHALIBO, Yoni, LEVY, Uriel, KHATSEVICH, Stanislav, KAPACH, Omer, BAKAL, Avraham
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DEVICES USING STIMULATED EMISSION ELECTRICITY LIME, MAGNESIA LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING METALLURGY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION REFRACTORIES SLAG TESTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Passively Q-switched lasers and short wave infrared (SWIR) electro-optical systems including such lasers. A passively Q-switched laser may include a gain medium (GM) having a stimulated emission cross section σSE, a saturable absorber (SA) having an absorption cross section (σa) which is less than three times the σSE of the GM, and an optical resonator within which the GM and the SA are positioned, the optical resonator comprising a high reflectivity mirror and an output coupler, wherein at least one of the high reflectivity mirror and the output coupler comprises a curved mirror, directing light within the optical resonator such that an effective cross-section of a laser mode within the SA (ASA) is smaller than a cross-section of a laser mode within a Rayleigh length of the pump (AGM).