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41. 发明授权

US11163119B2 Wavelength conversion device and method of performing wavelength conversion 有权
公开(公告)号：US11163119B2
公开(公告)日：2021-11-02
申请号：US16884909
申请日：2020-05-27
申请人： FUJITSU LIMITED
发明人： Tomohiro Yamauchi , Tomoyuki Kato , Goji Nakagawa , Takeshi Hoshida
IPC分类号： G02B6/28 , G02B6/293 , G02B6/12
摘要： A method includes multiplexing signal light of first polarization and excitation light, and multiplexing signal light of second polarization, which is perpendicular to the first polarization, and the excitation light, modulating the signal light of the first polarization before the wavelength conversion, and reducing a modulation component in signal light after wavelength conversion, modulating the signal light of the second polarization before the wavelength conversion, and reducing the modulation component in the signal light after the wavelength conversion, and multiplexing the signal light of the first polarization after the wavelength conversion and the signal light of the second polarization after the wavelength conversion.

42. 发明申请

US20210311257A1 LIGHT SOURCE ASSEMBLY 有权
公开(公告)号：US20210311257A1
公开(公告)日：2021-10-07
申请号：US17234361
申请日：2021-04-19
申请人： NKT Photonics A/S
发明人： Thomas FEUCHTER , Irnis KUBAT , Timur ISKHAKOV
IPC分类号： G02B6/28 , G02F1/125
摘要： A light source assembly having N outputs, the assembly including: a light source arrangement arranged for supplying light to M inputs, where M an N independently of each other are integers and where M≥2 and M≥N; at least one optical couplers, each having at least one input arm and a plurality of output arms; and an integer number, P, of mode scramblers. The light source arrangement may include a broadband light source and a multimode coupler configured for receiving one or more light beams from the light source arrangement, wherein the one or more light beams being derived from the broadband light source and wherein a mode scrambler is arranged for mode scrambling one of said light beams before it enters the multimode coupler.

43. 发明授权

US11105994B2 Fiber optic splitter module 有权
公开(公告)号：US11105994B2
公开(公告)日：2021-08-31
申请号：US16678515
申请日：2019-11-08
申请人： CommScope Technologies LLC
发明人： Steven C. Zimmel , Trevor D. Smith , Ponharith Nhep
IPC分类号： G02B6/44 , G02B6/46 , G02B6/28 , G02B6/38
摘要： A telecommunications assembly includes a chassis and a plurality of fiber optic splitter modules mounted within the chassis. Each splitter module includes at least one fiber optic connector. Within an interior of the chassis are positioned at least one fiber optic adapter. Inserting the splitter module through a front opening of the chassis at a mounting location positions the connector of the splitter module for insertion into and mating with the adapter of the chassis. The adapters mounted within the interior of the chassis are integrally formed as part of a removable adapter assembly. A method of mounting a fiber optic splitter module within a telecommunications chassis is also disclosed.

44. 发明授权

US11079214B2 Space division multiplexing optical coherence tomography using an integrated photonic device 有权
公开(公告)号：US11079214B2
公开(公告)日：2021-08-03
申请号：US16612905
申请日：2018-05-14
申请人： Lehigh University
发明人： Chao Zhou
IPC分类号： G01B9/02 , A61B5/00 , G02B6/125 , G02B6/28 , A61B3/10
摘要： Integrated photonic chips and related systems and methods suitable for space-division multiplexing optical coherence tomography scanning are disclosed. In one embodiment, the photonic chip comprises a substrate, an optical input port which receives an incident sampling beam from an external light source, a plurality of optical output ports configured to transmit a plurality of sampling beams from the chip to a sample to capture scanned images of the sample, and a plurality of interconnected and branched waveguide channels formed in the substrate. Waveguide channels in a splitter region divide the sampling beam into the plurality of sampling beams at the output ports. Terminal portions of the waveguide channels in a time delay region associated with each output port have different predetermined lengths to create an optical time delay between the sampling beams. In some embodiments, the chip further comprises an interferometer region to create interference patterns.

45. 发明申请

US20210215880A1 WAVELENGTH DIVISION MULTIPLEXING COMMUNICATION SYSTEM AND ADJUSTMENT METHOD OF WAVELENGTH DIVISION MULTIPLEXING COMMUNICATION SYSTEM 有权
公开(公告)号：US20210215880A1
公开(公告)日：2021-07-15
申请号：US17214579
申请日：2021-03-26
申请人： Mitsubishi Electric Corporation
发明人： Kei MASUYAMA , Mizuki SHIRAO
IPC分类号： G02B6/293 , G02B6/12 , G02B6/124 , G02B6/28
摘要： Included are a transmitter and a receiver caused to have a constant temperature. The transmitter includes: a semiconductor optical amplifier having a reflection mirror at a first end thereof; an optical waveguide having a first end coupled to a second end of the semiconductor optical amplifier; a wavelength demultiplexing filter having an input port coupled to a second end of the optical waveguide and a plurality of output ports having constant transmission wavelength intervals; reflection structures to reflect part of light output from the output ports, the reflection structures provided for the respective output ports of the wavelength demultiplexing filter; modulators to modulate light transmitted through the reflection structures, the modulators provided for the respective reflection structures; and a wavelength multiplexing filter having input ports coupled to the respective output ends of the modulators, transmission wavelength intervals of the input ports being identical to the transmission wavelength intervals of the wavelength demultiplexing filter, and having the output port coupled to a first end of an optical fiber. The receiver includes: a wavelength demultiplexing filter having an input port coupled to a second end of the optical fiber and a plurality of output ports having the same transmission wavelength intervals as the transmission wavelength intervals of the wavelength demultiplexing filter and an FSR obtained by multiplying the transmission wavelength interval by the number of the output ports; light receivers to receive light output from the output ports, the light receivers provided for the respective output ports of the wavelength demultiplexing filter; and a temperature controller to control the temperature of the wavelength demultiplexing filter.

46. 发明授权

US11061188B1 Fiber coupler and method for fabrication of the same 有权
公开(公告)号：US11061188B1
公开(公告)日：2021-07-13
申请号：US16806237
申请日：2020-03-02
申请人： AdValue Photonics, Inc.
发明人： Jihong Geng , Bryson Case , Shibin Jiang
IPC分类号： G02B1/02 , G02B1/00 , G02B6/28
摘要： A method for fabricating an optical fiber coupler device includes a step of tangibly fusing a first outer cladding of a first optical fiber with a second outer cladding of a second optical fiber as a result of pulling and heating the first and second optical fibers at lengths not exceeding 3 mm to form a first region of structurally-integrated with one another first and second optical fibers, and a step of heating a second, neighboring region of these fibers to configure the device to transmit optical power of at least about a hundred Watts and up to at least a kWatt from the input end to the output end with a value of throughput loss not exceeding 0.2 dB.

47. 发明授权

US11047959B2 Apparatus and method for generating multiple-wavelength distributed continuous wave and pulse optical transmission signal 有权
公开(公告)号：US11047959B2
公开(公告)日：2021-06-29
申请号：US15897518
申请日：2018-02-15
申请人： Optilab, LLC
发明人： Henry Hung , Leijun Yin , Andre Brewer
IPC分类号： G01S7/481 , G01S17/06 , G02B27/10 , H01S3/00 , G02B6/293 , G02B6/28 , H01S3/067 , H01S3/10
摘要： An optical signal transmitter configured to emit wavelength-distinct optical signals along distinct directions to provide a field scanning effect without requiring moving parts to effectuate the scanning. In one implementation, the optical signal transmitter includes a laser source for generating an optical signal including a set of distinct wavelengths, an optical amplifier configured to amplify the optical signal, a wavelength splitter configured to generate a set of optical signals consisting of distinct wavelengths, respectively, and a set of emission ports for emitting the set of optical signals in different directions. In another implementation, the wavelength splitting occurs at the set of emission ports. In yet another implementation, two stages of wavelength splitting are provided. The optical signal transmitter may be implemented in a LIDAR system for ascertaining information concerning objects-of-interests.

48. 发明申请

US20210191043A1 PROBE OPTICAL FIBER AND OPTICAL FIBER LATERAL INPUT/OUTPUT DEVICE 有权
公开(公告)号：US20210191043A1
公开(公告)日：2021-06-24
申请号：US17053048
申请日：2019-04-26
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takui UEMATSU , Hidenobu HIROTA , Hiroyuki IIDA , Tetsuya MANABE
IPC分类号： G02B6/28
摘要： An object of the present invention is to provide a probe optical fiber and a local-light coupling apparatus for an optical fiber that can input light with high efficiency without performing input efficiency measurement or probe alignment. The present invention is a probe optical fiber of which a tip is close to a bent part of a coated optical fiber disposed in a local-light coupling apparatus for an optical fiber, and which inputs and outputs light to and from the bent part of the coated optical fiber, wherein light emitted from the tip has a light intensity profile in which in the bent part of the coated optical fiber, relative to a light intensity in a center of an optical axis, a decrease in light intensity at a position separated by 20 μm from the optical axis is less than 17.6 dB.

49. 发明申请

US20210165235A1 M-Z INTERFACE LIGHT PATH STRUCTURE WITH ALL POLARIZATION-MAINTAINING FUNCTION 有权
公开(公告)号：US20210165235A1
公开(公告)日：2021-06-03
申请号：US16627757
申请日：2017-11-10
申请人： Guangdong Fu'an Technology Development Co., LTD.
发明人： QIAN XIAO , BO JIA , PENGWEI ZHOU , YONGCHAO CHEN
IPC分类号： G02B27/28 , G02F1/09 , G02F1/21 , G02B6/28
摘要： The application provides a interface light path structure with all polarization-maintaining function. A first polarization-maintaining-transferring device includes a first port, a second port, and a third port, wherein the first port receives a first polarized light output by the polarization beam-splitting device, the second port is connected to the first Faraday rotation mirror, and the third port is connected to a first port of the first polarization-maintaining coupler. A second polarization-maintaining-transferring device includes a first port, a second port, and a third port, wherein the first port receives a second polarized light output by the polarization beam-splitting device, the second port is connected to the second Faraday rotation mirror, and the third port is connected to a second port of the first polarization-maintaining coupler.

50. 发明授权

US11022747B2 Laser processing apparatus and method 有权
公开(公告)号：US11022747B2
公开(公告)日：2021-06-01
申请号：US16464310
申请日：2016-12-08
申请人： Corelase Oy
发明人： Jarno Kangastupa
IPC分类号： G02B6/02 , G02B6/036 , B23K26/06 , B23K26/073 , B23K26/38 , G02B6/28 , G02B6/26 , G02B6/42
摘要： The invention concerns an apparatus and its use for laser processing. The invention also concerns a method and an optical component. According to the invention, at a first laser device, providing a first optical feed fiber and a second laser device providing a second optical feed fiber is provided. A beam combining means connected to the first and second feed fibers and to a multi-core optical fiber is adapted to form a composite laser beam by having the first optical feed fiber aligned with a first core of the multi-core optical fiber and the second optical feed fiber aligned with at least one second core of the multi-core optical fiber. The first and second cores outputs a composite laser beam to a workpiece to be processed. A control unit controls power density of at least one of first and second laser beams of the composite laser beam in at least one of: in response to approaching a change point in direction of cutting progression and to cause change in relation between the power density of the first output laser beam and power density of the second output laser beam in accordance with thickness of the workpiece being cut.

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