An optical regroup cable is provided for a fixed optical cross connect. The cable may include holders for supporting the fibers within the cable and to group the fibers into two bundles. The bundles are arranged so that relative positions of two bundle ends at a first end of the cable are different from relative positions of two bundle ends at a second end of the cable.

A two-dimensional (2D) optical fiber array component takes the form of a (relatively inexpensive) fiber guide block that is mated with a precision output element. The guide block and output element are both formed to include a 2D array of through-holes that exhibit a predetermined pitch. The holes formed in the guide block are relatively larger than those in precision output element. A loading tool is used to hold a 1N array of fibers in a fixed position that exhibits the desired pitch. The loaded tool (holding the pre-aligned 1N array of fibers) is then inserted through the aligned combination of the guide block and output element, and the fiber array is bonded to the guide block. The tool is then removed, re-loaded, and the process continued until all of the 1N fiber arrays are in place. By virtue of using a precision tool to load the fibers, the guide block does not have to be formed to exhibit precise through-hole dimensions, allowing for a relatively inexpensive guide block to be used.

A method for terminating a plurality of optical fibers arranged in a two-dimensional arrangement comprises inserting the plurality of optical fibers into and through a fiber ferrule, where the fiber ferrule has a plurality of parallel channels extending from an entry surface through to a polish surface; polishing the polish surface including an end of each of the plurality of optical fibers to form a coplanar surface at a polish angle relative to a reference plane perpendicular to the parallel channels; and affixing a glass plate to the polish surface.

Embodiments disclosed herein include optical packages. In an embodiment, an optical package comprises a package substrate, a compute die over the package substrate, and an optics die over the package substrate. In an embodiment, the optics die comprises grating couplers. In an embodiment, an optical connector for optically coupling optical fibers to the grating couplers is provided. In an embodiment, the optical connector comprises a fiber array unit (FAU), where the FAU has a turn. In an embodiment, the optical connector further comprises a fiber shuffler, where the fiber shuffler comprises a first V-groove with a first depth and a second V-groove with a second depth that is greater than the first depth. In an embodiment, the optical connector further comprises a ferrule.

An optical device comprises optical fibers and a holder. The holder includes one end portion, an other end portion, and a supporting portion extending in a direction of a first axis from the one end portion to the other end portion. The one end portion includes a first end face extending along a first reference plane intersecting with the first axis from a side of the holder to cladding regions of the optical fibers; a second end face extending along a second reference plane from the one end portion to the other end portion; and a third end face extending along a third reference plane inclined at an angle of less than 90 degrees and more than zero degrees relative to the first axis. The cladding regions of the optical fibers are disposed at the second end face. The optical fibers have respective tips disposed at the third end face.

An indexing signal detection module is configured to index one or more signal detectors past each of a plurality of sources of detectable signal emissions to detect or measure a signal emitted by each source. A plurality of signal transmission conduits transmit signal emitted by the sources from a first end of each conduit to a second end of each conduit where the signal may be detected by a signal detector. A conduit reformatter is configured to secure the first ends of the respective signal transmission conduits in a first spatial arrangement corresponding to a spatial arrangement of the signal emission sources and to secure the second ends of the respective signal transmission conduits in a second spatial arrangement different from the first spatial arrangement.

An apparatus for incubating the contents of a plurality of receptacles and for detecting a signal emitted by the contents of each of the receptacle includes a plurality of receptacle holders configured to incubate the contents of each a plurality of receptacles held by each of the receptacle holders. A controller is coupled to each of the receptacle holders and is configured to independently control an incubation temperature of each of the receptacle holders to independently control a temperature at which the receptacles held by each of the receptacle holders is incubated. At least one signal detector is configured to detect a signal emitted by the contents of each of the receptacles held in each of the receptacle holders, and a signal detector indexer is configured to successively optically couple each signal detector with each of the receptacles held in each of the receptacle holders to detect optical emissions from each successively coupled receptacle.

In each of the plurality of optical fibers, a second diameter portion has a diameter larger than that of a first diameter portion. A tapered portion connects the first diameter portion and the second diameter portion by a tapered surface. In a fiber accommodating, a second accommodating portion has an inner diameter larger than that of a first accommodating portion. Each first diameter portion is located in the first accommodating portion. Each second diameter portion is located in the second accommodating portion. The second accommodating portion includes a plurality of regions divided by imaginary planes perpendicular to the first direction. The tapered portions of the optical fibers adjacent to each other among the plurality of optical fibers are located in the different regions among the plurality of regions.