A system for positioning an optical preform in a furnace is provided that includes an upper muffle and a downfeed handle assembly with a tube defining a first end and a second end, the second end extending into the upper muffle. A handle is disposed within the tube. A second end of the handle extends into the upper muffle and a seal assembly is positioned around both the tube and the handle. The first end of the handle extends through the seal assembly and a drive assembly is coupled with the downfeed handle.

A coating removal tool includes a base part and a cover part, to remove a coating of an optical fiber by overlapping the cover part and the base part. The base part and the cover part are made of resin, and include at least a pair of coating removal blades including a base front blade portion provided on the base part and a cover front blade portion provided on the cover part. The base part includes a V-groove which sandwiches the optical fiber in either one or both of a front and rear of the optical fiber in the longitudinal direction and the cover part includes a V-groove which sandwiches the optical fiber and is provided on a side where the V-groove exists in the front and rear of the longitudinal direction in a state where the cover part and the base part are overlapped.

An optical fiber termination system includes an optical fiber termination unit assembly, an enclosure, and a plurality of electronic or optical devices within the enclosure. The assembly includes a housing having an interior surface, a patch panel terminal coupled to the interior surface of the housing, an optical assembly, an input optical fiber, and a plurality of optical fibers. The input optical fiber extends into the housing to the optical signal assembly. The output optical fibers extend out of the housing from the patch panel terminal. The enclosure is separate from the housing. The optical signal assembly divides a light beam emitted from the optical signal assembly into a plurality of light beams that are received by the patch panel terminal. The output optical fibers are configured to convey respective light beams to any one or any combination of the plurality of electronic and optical devices in the enclosure.

Provided is an optical fiber coupler capable of suppressing variation of polarization state of light passing through a coupler portion. The optical fiber coupler includes: a substrate having a groove; a coupler portion which is inserted into the groove and to which a middle portion of each of optical fibers is joined; and an adhesive for bonding the coupler portion to the substrate. Shore D hardness of the adhesive is 10 to 35. By setting the Shore D hardness of the adhesive to 10 to 35, it is possible to suppress the variation of the polarization state of the light passing through the coupler portion.

Provided is a system for and a method of processing an optical fiber, such as tapering an optical fiber. The method includes receiving fiber parameters defining characteristics of an optical fiber, modeling an idealized fiber based on the fiber parameters to establish modeled data, and establishing processing parameters. A processing operation is performed on the optical fiber according to the processing parameters to produce a resultant fiber. Aspects of the resultant fiber are measured to establish measured data. The measured data and the modeled data are normalized to a common axis and a difference between the two is determined. The processing parameters are adjusted based on the differences.

A system for positioning an optical preform in a furnace is provided that includes an upper muffle and a downfeed handle assembly with a tube defining a first end and a second end, the second end extending into the upper muffle. A handle is disposed within the tube. A second end of the handle extends into the upper muffle and a seal assembly is positioned around both the tube and the handle. The first end of the handle extends through the seal assembly and a drive assembly is coupled with the downfeed handle.

A light source assembly having N outputs is disclosed. The assembly comprising: a light source arrangement arranged for supplying light to M inputs, where M an N independently of each other are integers and where M2 and MN; 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 comprise 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.

An apparatus configured to function as a pluggable single-wavelength bidirectional transceiver in a switching network. The apparatus includes: a 21 fusion coupler; an input/output optical fiber, a detector optical subassembly (OSA) fiber and a laser OSA fiber all connected to the 21 fusion coupler; and a transceiver that includes a transceiver electronic circuit printed wiring board (PWB) and laser and detector OSAs electrically coupled to the transceiver electronic circuit PWB. The laser OSA includes a laser that is situated to transmit light to the laser OSA fiber, while the detector OSA includes a photodetector that is situated to receive light from the detector OSA fiber. The transceiver electronic circuit PWB also includes a multiplicity of transceiver input/output metal contacts arranged at one pluggable end of the PWB.

An optical fiber termination system includes an optical fiber termination unit assembly, an enclosure, and a plurality of electronic or optical devices within the enclosure. The assembly includes a housing having an interior surface, a patch panel terminal coupled to the interior surface of the housing, an optical assembly, an input optical fiber, and a plurality of optical fibers. The input optical fiber extends into the housing to the optical signal assembly. The output optical fibers extend out of 150 the housing from the patch panel terminal. The enclosure is separate from the housing. The optical signal assembly divides a light beam emitted from the optical signal assembly into a plurality of light beams that are received by the patch panel terminal. The output optical fibers are configured to convey respective light beams to any one or any combination of the plurality of electronic and optical devices in the enclosure.

The embodiments herein describe an optical transmitter that integrates a SCOWA into a photonic chip that includes a modulator. The embodiments herein place the SCOWA between the laser and the modulator. To accommodate the large mode size of the waveguide in the SCOWA, the photonic chip includes a pair of spot size converters coupled to the input and output of the SCOWA. Rather than amplifying a modulated signal as is typical with an inline amplifier, the SCOWA amplifies a continuous wave (CW) optical signal generated by the laser which introduces less noise and improves the OSNR of the transmitter.