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4533208 |
Evanescent-wave star coupler on a substrate
A star coupler is described in which a plurality of optical fibers are embedded in a first rigid substrate. The fibers may be etched or polished to a core area to expose a first evanescent coupling...
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4531239 |
Optical receiver having collision detection function
A signal collision detection device for an optical receiver forming a part of an optical local area network which interconnects a number of optical transceivers using optical fibers. The signal...
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4515428 |
Integrated optical star coupler
A single-mode integrated optical star coupler employing weighted directional coupling between pairs of non-parallel waveguides formed on a substrate. Light launched into an input waveguide is split...
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4516204 |
Optical passive bus control system
An optical passive bus control system includes an access coordinator and control unit which is connected to the passive network in the same manner as other connected devices of the network. The...
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4484794 |
Optical star coupler and the method of making
An optical star coupler for use in optical systems with multi-mode optical fibers for interconnecting two groups of system fibers, characterized by the star coupler comprising a mixing element, two...
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4474425 |
Planar, optical star coupler for optical fibers
An optical coupler formed on a substrate including a plurality of input and output guide channels and an immediate mixing guide channel connecting the input and output guide channels wherein the...
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4473271 |
Method and apparatus for fiber optic coupling
An optical coupler for use with a plurality of fiber optics to couple any signal which may appear on any one or more of the input ends of the fibers so that at least a portion of such signal...
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4457581 |
Passive fiber optic data bus configurations
Disclosed are optical data bus configurations for interconnecting terminals so that any terminal can communicate with any other terminal. It is known to do this by connecting terminals serially...
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4449783 |
Optical star coupler with a planar mixer element
An optical star coupler, which includes a mixing element consisting of a planar waveguide having an input and output end for interconnecting two groups of light conducting fibers with a packing...
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4423924 |
Star coupler bulkhead connector
A star coupler bulkhead connector for equalizing signal levels over different transmission paths where one of the transmission paths includes pressure bulkhead penetration. The signal path which...
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4400054 |
Passive optical coupler
Disclosed is an optical data bus employing a passive optical coupler. The optical coupler includes a scrambler rod which is rectangular in cross section and employs solid substantially inflexible...
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4365864 |
Optical fibre multiport couplers
A star coupler for distributing light from an input optical fibre to one or more output fibres comprises a glass mixer rod interfaced with an optical fibre array and provided with a coating of...
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4362357 |
Optical star coupler for multi-mode light conducting fibers
A three dimensional star coupler for interconnecting a first bunch of optical waveguides such as fibers to a second bunch of optical waveguides or optical fibers characterized by a mixing element...
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4360248 |
Multiport optical communication system and optical star structure therefor
A multiport optical cable or bus, composed of bundles of parallel fibers interconnected by an optical star structure, has a higher packing fraction and greater efficiency in the mixing and...
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4355863 |
Cladded optical fiber having a longitudinal side coupling zone
An optical fiber having a core surrounded by a cladding layer which has an index of refraction less than the index of refraction of the core characterized by a longitudinal side coupling zone being...
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4330170 |
Low-loss star couplers for optical fiber systems
The low-loss reflection star coupler has a bundle of multimode optical fibers which is folded on itself and fused over a predetermined length to form a bundle loop. During the fusion process, the...
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4318586 |
Distributive couplers for fiber optics
A distributive coupler for use with at least one set of optical fibers includes a fiber optic terminal for supporting the end portions of each set of optical fibers. In a reflective mode, the...
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4305641 |
Optical mixing element
An optical mixing element characterized by two groups of light conducting fibers being connected to one another by a mixer stage. The mixing element of this type exhibits small insertion losses and...
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4302069 |
Illumination system and apparatus therefor
Disclosed is an illumination system incorporating light pipes distributing light to large numbers of building spacial units, the system employing artificial or natural light sources, light...
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4285570 |
Light branching device
A light branching device includes a light-focusing transmission body having a refractive index which decreases in proportion to the square of the distance from the plane of its optical axis, and...
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4262995 |
Planar star coupler device for fiber optics
The specification describes a new and improved optical coupler which comprises (1) a substrate which is adapted to receive and reflect light, having formed therein and adjacent the major (or top)...
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4261641 |
Active multiport fiber optic data bus coupler
A coupler utilizing a repeater. Dedicated transmit and receive lines interconnect transmitters and receivers with the data bus and, receive lines from other hybrid lines are optically isolated by...
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4240694 |
Single optical fiber directional coupler
A coupler for transferring signals from a first group of single optical fibers to a second group of single optical fibers. The coupler provided for this purpose is a directional star coupler which...
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4234968 |
Optical coupler module in a distributed processing system
An optically linked distributed data processing system having a plurality of stations and first and second transmission lines associated with each station. The first transmission line carries...
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4227260 |
Electronic active star element for an optical data transmission system
In order to more efficiently transmit optical data on an optical data bus to a number of members of an optical data transmission community, an electronic active star element which receives signals...
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4213670 |
Planar fiber optic star and access coupler
A planar, optical star and access coupler for multiterminal communication systems which use multimode fibers as the transmission line either as a plurality of single fiber lines, in multichannel...
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4212512 |
Fiber optic coupler for tapping into fiber optic line
Light distributing coupler means are provided for use in an optic fiber transmission system having a first, second, third and fourth optical fibers. The distributing means is arranged to couple...
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4200356 |
Coupler for optical communication system
A coupler for interconnecting transmission lines in an optical communication system. In a preferred embodiment it comprises an elongated bi-conically shaped rod of transparent material which...
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4198118 |
Power equalizing multiport optical coupler
An apparatus for controlling the attenuation of optical coupling between remote terminals or ports on the same optical coupler. The attenuator employed is a partially reflecting mirrored surface...
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4193661 |
Optical multichannel coupler
A multichannel coupler for connecting a plurality of input fibers to a plurality of output fibers which comprises a mixing fiber coupled to the pluralities of fibers. This mixing fiber is cut along...
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4184740 |
Multi-channel coupler for fibres optic links
The invention provides a multi-channel optical coupler forming a single component which can be attached to the front panel of an equipment. A single central U-shaped optical fibre acts as a mixer...
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4179185 |
Coupler for optical communication system
A coupler for coupling an optical signal progagating in any one of a plurality of optical waveguide filaments to all of the remaining filaments. The coupler comprises a plurality of optical...
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4150870 |
Adjustable distributor device for shared transmission of radiant energy
The present invention relates to an adjustable radiation distributor for fiber optics networks. This distributor effects distribution of an incident radiation between several optical cables by...
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4139259 |
Light distributor for optical communication systems
A light distributor which is connected to an incoming light guide and a plurality of outgoing light guides for distributing a light arriving from the incoming light guide into the plurality of...
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4113345 |
Branching arrangement for communication transmission links having optical glass fibers
A branching arrangement for communication transmission links having a branching zone between an incoming cladded optical glass fiber and a plurality of outgoing cladded optical glass fibers with...
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4087156 |
Optical fiber transmission mixer and method of making same
Methods and materials are disclosed for providing an optical fiber transmission mixer wherein the cladding material is removed from an intermediate region of a plurality of fibers and the exposed...
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4072399 |
Passive optical coupler
A coupler disposed between two optical signal transmission lines for extracting from the first transmission line a fraction of the energy transmitted thereby and for injecting an input optical...
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4054366 |
Fiber optics access coupler
There is disclosed a fiber optic coupler for use in single strand fiber systems comprising a device to allow optical access to a single fiber by means of a second fiber which has been attached to...
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3937557 |
Star coupler for single mode fiber communication systems
An optical coupler system in which optical communications from separate cers are transmitted over separate lines of a single optical fiber to a coupler which combines the information and transmits...
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3912364 |
Mixer for optical waveguide bundle
An optical mixer for use with first and second optical waveguide bundles. The end portions of the fibers of the first and second bundles are disposed in a parallel relationship and the ends of the...
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3910678 |
Fiber optic tubular star connector
A multi-fiber optical cable connector including a star coupler employing a generally axially elongated spindle tapered at both extremities to form a pointed end at each extremity, these points...
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3874781 |
COUPLER FOR OPTICAL COMMUNICATION SYSTEM
A coupler for coupling the signal in any one of a plurality of optical signal transmission lines to all of the remaining transmission lines. The coupler comprises an elongated cylindrically shaped...
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