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Class 372/93 - Folded cavity


Subclass of Class 372 - Coherent light generators
Definition: Subject matter wherein the cavity is folded or includes
No. of applications: 26
Last issue date: 11/17/2011


Application No.Application TitleIssue Date
20110280271F-P CAVITY AND LASER USING SAID F-P CAVITY
The disclosure discloses a fabry-Perot (F-P) cavity, which is a folded confocal cavity integrally formed by a monolithic optical element, the folded confocal cavity having three reflection surfaces, wherein a first reflection surface is a plane and at the same time serv...
11/17/2011
20110170566Mode-locked solid state lasers using diode laser excitation
A mode-locked laser employs a coupled-polarization scheme for efficient longitudinal pumping by reshaped laser diode bars. One or more dielectric polarizers are configured to reflect a pumping wavelength having a first polarization and to reflect a lasing wavelength hav...
07/14/2011
20110150013RESONANT PUMPING OF THIN-DISK LASER WITH AN OPTICALLY PUMPED EXTERNAL-CAVITY SURFACE-EMITTING SEMICONDUCTOR LASER
Laser apparatus comprises a solid-state laser-resonator including a thin-disk solid-state gain-medium. The thin-disk gain medium is optically pumped using radiation circulating in an OPS-laser resonator. The solid-state laser-resonator can be a passively mode-locked or ...
06/23/2011
20110032961MONOLITHIC FOLDED F-P CAVITY AND SEMICONDUCTOR LASER USING THE SAME
This invention relates to a monolithic folded F-P cavity used for semiconductor laser, which is composed of a monolithic optical element. The monolithic optical element is made of the material having low propagation loss for a certain spectrum range. Light entering thro...
02/10/2011
20100214652Folded Optical System and a Lens for Use in the Optical System
An optical system having an optical axis, the optical system comprising: (I) a light source; (II) a reflector; (III) a lens component situated between the light source and the reflector; (IV) a receiver, wherein the light source and the receiver are situated substantial...
08/26/2010
20100150187LASER
A laser apparatus in which the elimination of separate optical components to provide intra-cavity polarization and compensation for thermally induced birefringence, and their associated losses, results in an improvement in efficiency and reduction in complexity over pri...
06/17/2010
20090190623EXTERNAL-CAVITY OPTICALLY-PUMPED SEMICONDUCTOR-LASER WITH A RESONATOR STOP
An optically pumped semiconductor-laser (OPS-laser) resonator includes an arrangement for delivering optical pump radiation on an OPS-chip to cause fundamental radiation to circulate in the resonator. The resonator includes second and third-harmonic generating crystals ...
07/30/2009
20090059991RE-ENTRANT STRUCTURE FOR THIN DISK RESONATORS
The present embodiment provides a system and method for lowering the saturated gain level of a thin-disk laser oscillator by multipassing each gain generator in such a way to cancel some of the wavefront error contributions from the disk surfaces. Wavefront aberrations ...
03/05/2009
20090052481Laser light source device and image generating device using same
Disclosed herein is a laser light source device including a pumping light source; a pair of resonator mirrors; a laser medium and a wavelength converting element within a resonator formed by the resonator mirrors; the laser medium being pumped by light in a transverse m...
02/26/2009
20080013587Multiple-Reflection Delay Line For A Laser Beam And Resonator Or Short Pulse Laser Device Comprising A Delay Line Of This Type
A multiple-reflection delay line member for a laser beam, including mirror elements for the multiple reflection of the laser beam to reduce the dimensions of a laser resonator at a predetermined optical length, wherein the mirror elements are comprised of two oppositely...
01/17/2008
20070286247Frequency-doubled laser resonator including two optically nonlinear crystals
An intracavity frequency-doubled includes a laser resonator including at least one gain element and two optically nonlinear crystals. The two optically nonlinear crystals independently double the frequency of fundamental radiation in the resonator. In one example the cr...
12/13/2007
20070201531OPTICALLY PUMPED SEMICONDUCTOR LASER DEVICE
An optically pumped semiconductor laser device having a surface-emitting vertical emission region (1) and at least one monolithically integrated pump radiation source (2) for optically pumping the vertical emission region (1). The semiconductor lase...
08/30/2007
20070201532Longitudinally pumped solid state laser and methods of making and using
A laser apparatus for producing a laser light beam can include a gain medium; a pump light source to provide a pump light beam to the gain medium; a first reflector disposed between the first gain medium and the first pump light source and spaced apart from a gain porti...
08/30/2007
20070160104Ultra-short laser source with rare earth ions and stable pulse train and device for lengthening a laser cavity
The invention relates to a rare earth ion ultrashort laser source including a resonant cavity (1) having a first output face (2) partially reflecting and a second reflecting face (3). Said source also comprises a first active material (4). Sa...
07/12/2007
20070002923Metal reflector and process for producing it
The invention relates to a process for producing a high-precision reflector and its coating. A reflector is produced from a solid material using a material-removing process and is coated with a cold-light mirror layer. ...
01/04/2007
20060251142Apparatus and methods for altering a characteristic of a light-emitting device
Apparatus and methods for altering one or more spectral, spatial, or temporal characteristics of a light-emitting device are disclosed. Generally, such apparatus may include a volume Bragg grating (VBG) element that receives input light generated by a light-emitting dev...
11/09/2006
20060251141Optically pumped external-cavity semiconductor laser with multiple gain structures
A laser-resonator terminated by two end mirrors is folded by a plurality of OPS-structures and a plurality of fold-mirrors. The OPS-structures are energized by focused radiation from diode-laser bars. The fold-mirrors are configured and arranged with respect to the OPS-...
11/09/2006
20060245462LIGHT SCANNING DEVICE, METHOD FOR CONTROLLING LIGHT SCANNING DEVICE, AND IMAGE DISPLAY DEVICE
A light scanning device that projects light beams modulated in response to image signals. The light scanning device includes: a light source that emits the light beams; a scanner that scans the light beams from the light source in a first direction and a second directio...
11/02/2006
20060209916Very high repetition rate narrow band gas discharge laser system
A laser system and method is disclosed which may comprise a first line narrowed gas discharge laser system producing a first laser output light pulse beam at a pulse repetition rate of ≧2000 Hz; a second line narrowed gas discharge laser system producing a second lase...
09/21/2006
20060193362Fold device for guiding beams in a laser
The use of reflecting surfaces that are inclined towards one another enables the multiple reflection of a beam path to be achieved in a laser structure. This permits the realization of compact laser assemblies. The introduction of beam-influencing media between the refl...
08/31/2006
20060159152Laser oscillator
A laser oscillator capable of restraining the generation of a diffracted beam so as to obtain a laser beam with high power and high quality. The laser oscillator has an output mirror, a rear mirror and first and second concave mirrors. These mirrors cooperate together s...
07/20/2006
20060140241Laser amplifier
In a solid-state laser amplifier including at least two laser-active media in a common laser radiation field, the laser-active media do not form a hard aperture for the laser radiation field. Each of the laser-active media define a plane that is penetrated by the laser ...
06/29/2006
20050163186High-power diode laser system
Disclosed is a diode laser system comprising a diode amplifier member with a large transverse gain area. The diode amplifier member includes an amplifying medium for amplifying a number of spatial modes of a spatial light distribution. The laser system further comprises...
07/28/2005
20050123017External cavity tunable laser system formed MEMS corner mirror
A tunable laser system is provided. The tunable laser system includes a light source, a grating, a corner mirror array, and a receiver. In which, the light source emits a beam, and the grating is located in front of the light source for reflecting the beam to form a fir...
06/09/2005
20050111510Corner-pumping method and gain module for solid state slab laser
A corner-pumping method for slab laser and a solid-state laser gain module are disclosed. In one embodiment, said method comprises directing a pump light into a laser slab through slab corners of said laser slab; propagating the pump light within the laser slab by total...
05/26/2005
20050090030Method for fabricating zig-zag slabs for solid state lasers
A method for batch manufacturing of slabs for zig-zag lasers including steps of bonding two non-active media to either side of an active medium to form a sandwich, dicing the sandwich to provide slices, rendering two surfaces of each slice into total-internal-reflection...
04/28/2005
 
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