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公开(公告)号：US11966091B2
公开(公告)日：2024-04-23
申请号：US17452173
申请日：2021-10-25
CPC分类号： G02B6/425 , G02B6/4206
摘要： A multichannel optical coupler array can include a coupler housing structure and longitudinal waveguides. At least one of the longitudinal waveguides can be a vanishing core waveguide having an inner vanishing core having a first refractive index (N-1), an outer core having a second refractive index (N-2), and an outer cladding having a third refractive index (N-3). A refractive index transition between N-1 and N-2 can have a function form N(r), where r is a transverse distance from the inner vanishing core center. The function N(r) can be a smooth function having a positive average of the second derivative or function N(r) can be a step function with at least one step approximating the smooth function. The coupler housing structure may have non-circular holes formed by convex-shaped housing structure elements.
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公开(公告)号：US10914891B2
公开(公告)日：2021-02-09
申请号：US16141314
申请日：2018-09-25
发明人： Victor Il'ich Kopp
摘要： A multichannel optical coupler can include an output optical coupler array and a plurality of optical fibers. At least two of the plurality of optical fibers can be connected together at an end opposite the output optical coupler array.
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公开(公告)号：US20170336570A1
公开(公告)日：2017-11-23
申请号：US15612337
申请日：2017-06-02
CPC分类号： G02B6/3668 , G02B6/3636 , G02B6/3644 , G02B6/4214
摘要： The inventive high density optical packaging header apparatus, in various embodiments thereof, provides configurable, modular, and highly versatile solutions for simultaneously connecting multiple optical fibers/waveguides to optical-fiber-based electronic systems, components, and devices, and is readily usable in a variety of applications involving highly flexible and modular connection of multiple optical fibers/waveguides assembled in a header block configuration to optical-fiber-based system/component backplanes, while providing advantageous active and passive alignment features.
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公开(公告)号：US09810845B2
公开(公告)日：2017-11-07
申请号：US15272216
申请日：2016-09-21
发明人： Victor Il'ich Kopp
CPC分类号： G02B6/30 , G02B6/02042 , G02B6/024 , G02B6/12 , G02B6/32
摘要： Advantageously, at least one embodiment comprises a flexible pitch reducing optical fiber array (PROFA) coupler capable of maintaining all channels discretely with sufficiently low crosstalk, while providing enough flexibility to accommodate low profile packaging, and having increased stability with respect to environmental fluctuations, including temperature variations and mechanical shock and vibration, and that is combinable in multiple quantities thereof to form an optical multi-port input/output (IO) interface.
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公开(公告)号：US20170219774A1
公开(公告)日：2017-08-03
申请号：US15374854
申请日：2016-12-09
发明人： Victor Il'ich Kopp
CPC分类号： G02B6/2843 , G02B5/3016 , G02B6/02042 , G02B6/024 , G02B6/04 , G02B6/24 , G02B6/2706 , G02B6/2766 , G02B6/287 , G02B6/305
摘要： Advantageously, at least one embodiment of the present disclosure comprises a polarization maintaining PROFA (“PM-PROFA”) coupler in which the polarization axes of the individual vanishing core waveguides thereof are oriented or aligned without the need to adjust the orientation of each individual VC waveguide.
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公开(公告)号：US20170192176A1
公开(公告)日：2017-07-06
申请号：US15204980
申请日：2016-07-07
发明人： Victor Il'ich Kopp
摘要： The inventive configurable optical fiber polarization mode coupler is capable of providing a low-loss, high-coupling coefficient interface with high accuracy and easy alignment between a plurality of optical fibers (or other optical devices) with a first channel-to-channel spacing, and an optical device having a plurality of closely-spaced waveguide interfaces with a second channel-to-channel spacing, where each end of the optical fiber coupler array is configurable to have different channel-to-channel spacing, each matched to a corresponding one of the first and second channel-to-channel spacing, and that are preferably optimized for use with photonic integrated circuits, such as coupling to dense optical input/output interfaces, wafer-level testing, etc. The novel optical coupler array includes a plurality of waveguides (at least one of which may optionally be polarization maintaining), that comprises at least one gradually reduced vanishing core fiber, at least in part embedded within a common housing structure. Advantageously, at least one embodiment of the present invention comprises a phase locking optical fiber coupler comprising at least one optical fiber coupler configured as a pitch reducing optical fiber array (PROFA) component configured and optimized coherent combining of multiple optical fiber lasers to produce multi-kilowatt single mode laser sources.
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公开(公告)号：US10761271B2
公开(公告)日：2020-09-01
申请号：US16263627
申请日：2019-01-31
发明人： Victor Il'ich Kopp
IPC分类号： G02B6/28 , G02B6/024 , G02B6/04 , G02B6/24 , G02B5/30 , G02B6/02 , G02B6/27 , G02B6/30 , G02B6/287
摘要： Advantageously, at least one embodiment of the present disclosure comprises a polarization maintaining PROFA (“PM-PROFA”) coupler in which the polarization axes of the individual vanishing core waveguides thereof are oriented or aligned without the need to adjust the orientation of each individual VC waveguide.
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公开(公告)号：US10564360B2
公开(公告)日：2020-02-18
申请号：US14677810
申请日：2015-04-02
摘要： The inventive optical fiber coupler array is capable of providing a low-loss, high-coupling coefficient interface with high accuracy and easy alignment between a plurality of optical fibers (or other optical devices) with a first channel-to-channel spacing, and an optical device having a plurality of closely-spaced waveguide interfaces with a second channel-to-channel spacing, where each end of the optical fiber coupler array is configurable to have different channel-to-channel spacing, each matched to a corresponding one of the first and second channel-to-channel spacing. The novel optical coupler array includes a plurality of waveguides (at least one of which may optionally be polarization maintaining), that comprises at least one gradually reduced vanishing core fiber, at least in part embedded within a common housing structure. Alternatively, the novel coupler array may be configured for utilization with at least one of an optical fiber amplifier and an optical fiber laser. Advantageously, the refractive indices and sizes of both inner and outer core, and/or other characteristics of vanishing core waveguides in the novel optical coupler array are optimized to reduce the back reflection for light propagating from the plurality of the optical fibers at the coupler first end to the optical device at the coupler second end, and/or vice versa.
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公开(公告)号：US20200041724A1
公开(公告)日：2020-02-06
申请号：US16600219
申请日：2019-10-11
IPC分类号： G02B6/26
摘要： An optical coupler array can include an elongated optical element having a coupler housing structure and at least one longitudinal waveguide embedded in said housing structure. The housing structure can have an outer cross sectional shape comprising a first side comprising one or more curved portions and a second side comprising one or more flat portions. The second side can be disposed at a distance from the at least one longitudinal waveguide such that waveguiding properties are preserved and not disturbed.
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公开(公告)号：US10481324B2
公开(公告)日：2019-11-19
申请号：US15612246
申请日：2017-06-02
IPC分类号： G02B6/02
摘要： The present invention is directed to an optical fiber grating having a core, that is capable of controlling the light signal transmission therethrough by causing at least one of: at least one spectral peak, and/or at least one spectral dip in its core light transmission spectrum, corresponding to at least one predetermined wavelength. The inventive optical fiber diffraction grating comprises at least one longitudinally positioned structural element of a predetermined geometric profile and that is configured for diffracting a portion of the transmitted light signal at at least one predefined wavelength thereof, from at least one core mode into at least one of: at least one cladding mode and/or at least one radiating mode. Various embodiments of a number of novel techniques for fabrication of the inventive optical fiber diffraction grating are provided, inclusive of a novel technique for fabricating the inventive grating from a single material. Advantageously, such novel fabrication techniques rely on configuration of a desired geometric profile for the at least one structural element portion of the novel grating, each profile comprising a number of readily configurable parameters that can be selected and/or adjusted during fabrication, to produce a variety of novel fiber diffraction gratings, each having a corresponding specific desirable core transmission spectrum having at least one of: least one spectral peak, and/or at least one spectral dip therein, corresponding to at least one specific desired wavelength, dependent on the configuration of the applicable geometric profile.
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