Ferrule-based optical component assemblies
View Patent ↗In one embodiment, an optical transceiver assembly includes an active component substrate, first and second fiber securing devices, and a holder device coupled to the active component substrate. The holder device includes an active optical component recess that encloses a first and second active optical component of the active component assembly, and first and second fiber-locating holes having an engagement feature at the active optical component recess such that an end of first and second fibers inserted into the first and second fiber-locating holes are aligned with the first and second active optical components along the x-, y-, and z-axes. In another embodiment, an optical component assembly includes an active component substrate having a solder ring, a fiber securing device, and an active optical component on the active component substrate. The fiber securing device is aligned with the active optical component by the solder ring.
1. An optical transceiver assembly comprising:
an active component assembly comprising an active component substrate comprising at least two pin holes, a first active optical component, and a second active optical component, wherein the first active optical component and the second active optical component are coupled to the active component substrate;
a first fiber securing device comprising a first fiber installation feature, the first fiber installation feature comprising a first signal aperture, and an engagement surface at an engagement end of the first fiber securing device, the engagement surface comprising a shoulder;
a second fiber securing device comprising a second fiber installation feature, the second fiber installation feature comprising a second signal aperture, and an engagement surface at an engagement end of the second fiber securing device, the engagement surface comprising a shoulder;
a holder device coupled to the active component assembly, the holder device comprising:
an active optical component recess at a first surface of the holder device, wherein the first active optical component and the second active optical component are positioned at the active optical component recess;
a first fiber-locating hole and a second fiber-locating hole extending from a second surface to the active optical component recess, the first fiber-locating hole and the second fiber-locating hole comprising an engagement feature at the active optical component recess, wherein the first fiber securing device is maintained within the first fiber-locating hole and the second fiber securing device is maintained within the second fiber-locating hole such that the engagement surface of the first and second fiber securing devices contact the engagement feature of the first and second fiber-locating holes, respectively; and
at least two coupling pins extending from the first surface of the holder device; wherein:
a diameter of the at least two coupling pins is smaller than a diameter of the at least two pin holes;
the at least two coupling pins are positioned within the at least two pin holes; and
the holder device is mechanically coupled to the active component substrate such that the first signal aperture of the first fiber securing device and the second signal aperture of the second fiber securing device are substantially located at a predetermined distance d from a surface of the active component substrate, the first signal aperture of the first fiber securing device is substantially located at a predetermined first location with respect to the first active optical component along an x-axis and a y-axis, and the second signal aperture of the second fiber securing device is substantially located at a predetermined second location with respect to the second active optical component along the x-axis and the y-axis, and a predetermined height in the Z-axis is established by the engagement of the first and second fiber securing devices with the engagement features of the holder device.
2. The optical transceiver assembly of claim 1 , wherein the holder device is placed on the active component substrate by a vision system.
3. The optical transceiver assembly of claim 1 , wherein the engagement feature of the holder device comprises a chamfered region.
4. The optical transceiver assembly of claim 1 , wherein the engagement feature of the holder device comprises a rim.
5. The optical transceiver assembly of claim 1 , wherein the active optical component recess is filled with an index-matching epoxy material.
6. The optical transceiver assembly of claim 1 , wherein the first and second fiber installation features each further comprise a fiber insertion region and a fitting region.
7. The optical transceiver assembly of claim 1 , wherein the active component substrate further comprises a plurality of electrically conductive vias located between the first active optical component and the second active optical component.
8. The optical transceiver assembly of claim 1 , wherein the fiber securing device is cylindrical.
9. The optical transceiver assembly of claim 1 , wherein:
the first and second fiber installation features each comprise a fiber insertion region and a fitting region; and
a diameter of the fiber insertion region is larger than a diameter of the fitting region.