Jenoptik Optical Systems Gmbh

Northrop Grumman Systems Corporation

University of Central Florida Research Foundation, Inc.

Stephan Fahr

Torsten Erbe

Michael Bass

Alexandra Rapaport

Matthias Bening

Markus Augustin

John Koroschetz

Brian Brickeen

Christian Dehmel

Carolin Rosenberger

The invention relates to a device comprising a beam splitter and a method of using the device. The device comprises a beam emitting unit and a downstream beam splitter, which is formed by two adjacent planar plates of different materials. For a specified wavelength range of an optical beam from which a partial beam is to be coupled out by reflection, the material of the first planar plate has a minimum refractive index which is greater by a refractive index interval than the maximum ref ractive index of the material of the second planar plate. From the optical beam, which, collimated and linearly polarized parallel to a plane of incidence, impinges on the beam splitter at a certain angle of incidence, the partial beam having only a small summary percentage of the optical beam and a small spectral fluctuation range is coupled out.

Method and device for coupling out a partial beam having a very small beam percentage from an optical beam

A stiffened lens mount with an outer mount ring having an axis of symmetry, an inner mount ring arranged coaxial to the outer mount ring and connection structures. The inner mount ring has at least one end face arranged perpendicular to the axis of symmetry, and a coaxially arranged stiffening ring fixedly connected to the inner mount ring via the at least one end face along an imaginary circle.

Stiffened lens mount

A monolithic lens mount is formed by an annular body which is divided through material recesses into an outer mount ring, an inner mount ring and three connection structures which are arranged so as to be offset by 120&#xb0; relative to one another. The connection structures in each instance form a chain of at least three, preferably five, connection webs which transition into one another and which are constructed as radial connection webs and axial connection webs. The axial flexural stiffness and radial flexural stiffness and the torsional stiffness of the connection structures can be determined via the dimensioning of the radial connection webs and axial connection webs.

Monolithic lens mount

An adjustable lens mount with an outer mount ring, a laterally adjustable inner mount ring and at least two connection structures. The at least two connection structures communicate in each instance with a manipulator with a radial acting axis. The connection structures in each instance have a coupling member and a lever connected therewith. The coupling member is connected to the inner mount ring farther radially outside than the lever is connected to the outer mount ring.

Adjustable lens mount

Apparatus, methods, systems and devices for providing a temperature independent laser by determining a temperature dependence of a lasing wavelength, selecting the lasing wavelength having minimal temperature dependence and constraining the lasing wavelength of the laser device to the selected lasing wavelength. In an embodiment, a volumetric Bragg grating in photo-thermal refractive glass is used as a laser cavity mirror for constraining the laser emission at the selected wavelength. The laser device may be a broad spectrum laser such as an Erdoped glass broad spectrum laser. In an embodiment, the lasers are operated where the temperature dependence of the stimulated emission cross section is used to compensate for temperature dependent changes of other laser components.

Growing community of inventors

Jena, Germany

Stephan Fahr