Hybrid laser

US4472809A · kind A · utility

Inventors

• Heinrich Karning · Heidelberg, DE
• Franz Prein · Neckargemünd, DE

Key dates

• Filing date: Dec 4, 1981
• Grant date: Sep 18, 1984
• Expiry date: Dec 4, 2001

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/2391
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A hybrid laser system, consisting of two different laser units, namely a reference laser (4), possibly an injection laser or a laser amplifier, and a transversely excited laser (TE-laser) (5), possibly a longitudinally pulsed or Q-switched laser, both lasers residing in a common housing. The first laser consists of a tube enclosing an isolated low pressure space and is bathed by coolant. The second laser is a high-pressure space enclosing a folded electrode system (14, 15). In order to achieve uniformity of temperature conditions and wavelength relations, both lasers share a common resonator volume (3) and are in fixed relative adjustment. The reference laser is used as a calibrating laser for frequency tuning of the resonator or, simultaneously, as a local oscillator, whereas the TE laser serves to generate a laser pulse.