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Matches 51 - 100 out of 56,842

Document Document Title
WO/2020/071262A1
In cladding pump schemes, optical amplifiers employing multi-core optical fibers have low absorption efficiency of pump light in an optical amplification medium, and light intensity amplification efficiency is reduced as a result, and th...  
WO/2020/068395A1
An optical element includes an optical material including a first edge and an opposing second edge. The optical element further includes a plurality of micro-channels arranged within the optical material. Each of the micro-channels of th...  
WO/2020/067809A1
A laser decontamination system according to an embodiment of the present invention comprises: a laser generator for generating a laser beam; an optical head which is inserted into a pipe and is for laser ablating by concentrating the las...  
WO/2020/069253A1
An integrated optical modulator array useful for modulating light at different wavelengths in the same optical band includes multiple GeSi waveguides on a substrate. Each GeSi waveguide has a different width and is coupled to electrodes ...  
WO/2020/065333A1
A method for generating a spatially transformed optical output from a laser system, the method comprising: disposing a laser gain medium within a laser cavity structure; arranging an interferometric device to complete the laser cavity st...  
WO/2020/064150A1
A laser device for laser detection and ranging (Li DAR), comprising: - a laser oscillator (30) configured for emitting a pulsed laser beam (B4), - a laser beam amplifier (9) disposed on the laser beam path, - a pumping unit (10) disposed...  
WO/2020/067383A1
An optical fiber amplifier 1 according to an embodiment of the present invention is provided with a multicore fiber 10 to which erbium is added, wherein the multicore fiber 10 is twisted and helically wound so as to form a fiber coil 2.  
WO/2020/064194A1
Methods of and apparatus for controlling pulses in a laser system include controlling the relative timing of trigger pulses in a multi-chamber laser system to control a delay in the respective firing of the multiple chambers including th...  
WO/2020/061969A1
A laser emitting device (1) and a ranging device (100). The laser emitting device (1) comprises: an emission circuit (11), a self-test circuit (12), and a control circuit (13), wherein the emission circuit (11) comprises a laser emitter ...  
WO/2020/062214A1
A waveguide integrated optical modulator and a preparation method therefor, used to actively modulate a pulsed laser, and to resolve the issue in which optical modulators have a limited range of applications. The waveguide integrated opt...  
WO/2020/061505A1
Multi-clad optical fiber cladding light stripper (CLS) comprising an inner cladding with one or more recessed surface regions to remove light propagating within the inner cladding. A CLS may comprise such recessed surface regions along t...  
WO/2020/056655A1
A near-infrared laser, comprising a front cavascope, a laser crystal, a Q-switched crystal, a quasi-phase-matched crystal, a wavelength selection crystal, and a rear cavascope. By applying an intracavity cascade frequency-doubled optical...  
WO/2019/113405A3
Orbital debris removal (ODR) systems under the present approach may use a ground- or surface-based FEL and mirror system with sufficient power and both spatial and temporal resolution to both locate Category II OD (1 cm to 10 cm diameter...  
WO/2020/059433A1
This optical fiber cooling device 5 is provided with a housing 33, a liquid metal M, and a chiller device 37. The housing 33 stores a portion of a first optical fiber 17 and a second optical fiber 19. The liquid metal M is disposed insid...  
WO/2020/059247A1
A laser device 1A is provided with: a semiconductor laser element 5; a waveform calculation unit 3 which calculates input waveform data Da; a driver circuit 4 which supplies, to the semiconductor laser element 5, a drive current Id havin...  
WO/2019/092702A3
A laser system including a seed laser, a laser beam splitting and combining subsystem receiving an output from the seed laser and providing a combined laser output having noise and a noise cancellation subsystem operative to provide a no...  
WO/2020/060735A1
Disclosed is an electrode for a laser chamber comprising an alloy of a first metal having a first free energy of formation with fluorine greater than or equal to the free energy of formation with fluorine of copper, and a second metal ha...  
WO/2020/056852A1
A tunable narrow linewidth photogenerated microwave source based on polarization control, comprising a high reflectivity fiber grating (1), a high gain fiber (2), a low reflectivity polarization-maintaining fiber grating (3), a stress ad...  
WO/2020/052515A1
A laser beam combining device with an unstable resonator cavity includes a semiconductor laser source(1) configured to emit a plurality of laser beams to a beam shaper(2) to form a plurality of parallel laser beams and the parallel laser...  
WO/2020/056264A1
Bismuth (Bi) doped optical fibers (BiDF) and Bi-doped fiber amplifiers (BiDFA) are shown and described. The BiDF comprises a gain band and an auxiliary band. The gain band has a first center wavelength (λ1) and a first six decibel (6dB)...  
WO/2020/054869A1
An optical oscillator according to an embodiment is provided with: a first reflecting portion which transmits light of a first wavelength and reflects light of a second wavelength; a second reflecting portion which forms an unstable reso...  
WO/2020/055577A1
Spliced multi-clad optical fibers with a cladding light stripper (CLS) encapsulating the splice. The splice may facilitate conversion between two optical fibers having different architectures, such as different core and/or cladding dimen...  
WO/2020/052744A1
The invention relates to an optical assembly (23), in particular for polarization of a laser beam (30), comprising a plurality of plate-shaped optical elements (5, 6,…) having a beam entry surface (5a, 6a,...) and a beam exit surface (...  
WO/2020/051068A1
A method and a system for etching of semiconductor substrates, and particularly, wet etching of wafers. The etch rate of liquid solutions applied on the wafer is adjusted by irradiating the liquid solutions with spatially varied light in...  
WO/2020/048052A1
A method, device and system for dynamically controlling a gain of a Raman optical fiber amplifier. The method comprises: determining whether a target gain falls within a gain mask range; if the target gain falls within the gain mask rang...  
WO/2020/051515A1
A linear regulator operates in the manner of a linear voltage regulator, but with the functionality of a switching converter. This concept enables DC voltage up-conversion with no switching, more efficient step down of large voltage step...  
WO/2020/051339A1
A pulse configurable laser unit is an environmentally stable, mechanically robust, and maintenance-free ultrafast laser source for low-energy industrial, medical and analytical applications. The key features of the laser unit are a relia...  
WO/2020/051377A1
A photonic lantern couples light from several fibers or fiber cores into one or more fibers or fiber cores. Photonic lanterns are often used to combine several lower-power beams into a single higher-power beam. They can also be used to c...  
WO/2020/048239A1
A high-power optical fiber laser gain optical fiber heat-dissipating device. The whole device is a circular structure, comprises a circular base heat sink (1) and a cylindrical heat sink (2), the outer diameter of a cylinder being slight...  
WO/2020/047977A1
Disclosed is an all-fiber vortex light laser based on resonance of orbital angular momentum modes, the laser having an annular cavity structure, and comprising a narrow-linewidth pump laser (1), an optical amplifier (2), an orbital angul...  
WO/2020/051185A1
Spectrographic measurements are often limited by the amount of light that is available. Photons that are not collected or measured reduce the signal to noise and therefore reduce measurement precision. This invention collects the zero or...  
WO/2020/045569A1
Provided is a cladding mode light removal structure capable of removing cladding mode light while suppressing local heating due to cladding mode light in an inexpensive manner. This cladding mode light removal structure 1 is used to remo...  
WO/2020/047339A1
A fiber amplifier that is particularly configured to provide gain across a large extent of the C-band spectral range (i.e., a gain bandwidth of at least 42 nm, preferably within the range of 46-48 nm) utilizes a specially-designed discre...  
WO/2020/041931A1
Disclosed is a submarine network device, comprising an optical fiber set, a pump laser set, an erbium doped fiber amplifier (EDFA) set, a primary optical fiber coupler (CPL) set, and a secondary CPL set. The primary CPL set comprises N p...  
WO/2020/046646A1
Fiber optic amplification includes a photonic crystal fiber coupled to a pump laser through a first coupler. The pump laser emits a first electromagnetic radiation wave into the photonic crystal fiber at a first oscillation frequency and...  
WO/2019/224600A3
In various embodiments, monitoring of one or more secondary diffracted beams formed within a laser resonator provides information based at least in part on which a primary diffracted beam formed within the laser resonator is controlled.  
WO/2020/037860A1
A method and apparatus for adjusting output power of a pulsed laser (100), and a pulsed laser (100). The method for adjusting output power of a pulsed laser (100) comprises: if the percentage of the input power of a pulsed laser (100) is...  
WO/2020/002569A3
The invention relates to a laser system (1) for generating laser pulses, comprising: a main resonator (2) having a main resonator beam path (6), in which a laser-active medium (4), in particular a laser-active solid-state medium, and an ...  
WO/2019/030713A3
The present disclosure relates to an optical module and an erbium-doped fiber amplifier. The optical module comprises an optical fiber component, a wavelength division multiplexing (WDM) filter, an isolator, a reflector and an optical de...  
WO/2020/034803A1
A gain medium multiplexed thin disk hybrid amplification laser and laser output method therefor. The gain medium multiplexed thin disk hybrid amplification laser comprises: a seed laser (1) for injection of amplifier seed light. A laser ...  
WO/2020/032016A1
The purpose of the present invention is to provide an intermode loss difference compensation fiber, an optical amplifier, and a transmission path design method which make it possible to reduce an MDL while eliminating the need for precis...  
WO/2019/221770A9
The present invention relates to a novel stand-off distance chemical detector system such as can be used, for example, for standoff detection of explosives. Instead of a conventional lasing medium, a Pr:YAG or Pr:BYF based UV laser is us...  
WO/2020/032148A1
This optical power transmission device is provided with: a light emitting unit which is provided with a first optical gain generating means and a first light reflecting means; an optical fiber; a second light reflecting means; and a ligh...  
WO/2020/031929A1
[Problem] To provide an undersea repeater that is capable of reducing power consumption while being equipped with a plurality of subunits. [Solution] This undersea repeater is configured so as to comprise a case 1, a plurality of light-a...  
WO/2020/032827A1
An infrared (IR) laser device and a surgical laser system using same comprise a pulse master oscillator equipped with quasi-continuous or QCW laser pump diode assemblies and a power amplifier equipped with continuous or CW laser pump dio...  
WO/2020/030900A1
A method for forming a layer comprising an organic lanthanide complex on a substrate. The method comprises providing a substrate, providing a vapour comprising an organic lanthanide complex, and contacting at least a portion of the subst...  
WO/2020/029517A1
A method and corresponding apparatus for reducing a backlight crosstalk impact of an optical assembly. The optical assembly comprises at least two wavelength channels. The method comprises: sequentially presetting a drive current of a la...  
WO/2020/026685A1
A fiber laser oscillator 1 that emits laser light comprises: a fiber Bragg grating 4 that reflects a specific wavelength component of the laser light, and an active fiber spool 6 in which an active fiber 6a is wound and accommodated. The...  
WO/2019/102402A3
An optical configuration including axiconical elements that serve as parts of a resonator or an optical chain of an amplifier for an active laser volume with a large transverse dimension. The system may include a single-fold or multiple-...  
WO/2020/026600A1
Provided is a laser energy measuring device with which it is possible for a laser beam that is being radiated onto a substrate to be evaluated accurately. This laser energy measuring device is provided, inside or outside an illuminating ...  

Matches 51 - 100 out of 56,842