Module apparatus and method of alignment
View Patent ↗The assembly of a packaged opto-electronic module of a type that comprises an optical subassembly coupled to an LC housing integrally formed within the housing of the module typically results in the optical subassembly being disposed in a location having a gap between a heat sink region of the module and the optical subassembly.
1. A module apparatus for a fibre-optic communications system, the apparatus comprising:
a housing assembly having a base part,
an optoelectronic package having at least one optoelectronic device therein, the optoelectronic package being disposed within the base part of the housing assembly; the optoelectronic package comprising a first part of a coupling attached thereto, the coupling being arranged to receive a ferrule connector; wherein at least a portion of the first part of the coupling is substantially fixedly located within a connector housing, and wherein the connector housing is arranged to be received within a complimentary shaped channel disposed on the base part of the housing assembly,
wherein the base part of the housing assembly comprises a channel for locating the optoelectronic package in close thermal contact therewith.
2. An apparatus as claimed in claim 1 , wherein the complimentary shaped channel is integrally formed with the base part of the housing assembly.
3. An apparatus as claimed in claim 1 , further comprising an electrical circuit board electrically coupled to the optoelectronic device within the optoelectronic package.
4. An apparatus as claimed in claim 3 , wherein the electrical circuit board is arranged to cooperate with a pivot arrangement so as to pivot during assembly of the apparatus about a point provided by the pivot arrangement, thereby facilitating alignment of the electrical circuit board with respect to the optoelectronic package during assembly of the apparatus.
5. An apparatus as claimed in claim 4 , wherein the electrical circuit board is arranged to cooperate with the pivot arrangement near the end of the electrical circuit board distal from the optoelectronic package.
6. An upparatus as claimed in claim 5 , wherein the electrical circuit board comprises an aperture formed therein located between a notional lateral centre line and the end of the electrical circuit board.
7. An apparatus as claimed in claim 3 , wherein the base part of the housing assembly comprises an aperture to permit protrusion of an end of the electrical circuit board therethrough, the end of the electrical circuit board being distal from the optoelectronic package, the aperture being defined, in part, by a locator side wall for cooperating with the electrical circuit board so as to prevent exccessive protrusion of the electrical circuit board beyond the aperture.
8. An apparatus as claimed in claim 7 , wherein a locator shoulder is provided at the end of the electrical circuit board to cooperate with the locator sidewall.
9. An apparatus as claimed in claim 1 , wherein the connector housing is shaped and/or configured so as to define one half of an LC connection.
10. An apparatus as claimed in c 1 aim 9 , wherein the half of the LC connection is an LC socket.
11. An apparatus as claimed in claim 1 , wherein the base part of the housing assembly defines an internal volume and the electrical circuit board lies substantially within the internal volume, and wherein the apparatus further comprises a spacer disposed adjacent the electrical circuit board so as to locate the electrical circuit board within the internal volume.
12. An apparatus as claimed in claim 1 , wherein the complimentary shaped channel is shaped so as to facilitate the close thermal contact between the optoelectronic package and the base part of the housing assembly.
13. An apparatus as claimed in claim 1 , wherein the complementarily shaped channel comprises locator features to at least binder incorrect orientation of the connector housing within the complimentarily shaped channel during assembly of the apparatus.
14. An apparatus as claimed in claim 13 , wherein the connector housing is arranged to comprise a complementary locator that cooperates with the locator features of the complementary shaped channel.
15. An apparatus as claimed in claim 13 , wherein the complementary shaped channel is partly defined by a first wall and a second wall, the first wall being shaped so as to provide a first locator feature and the second wall being shaped so as to provide a second locator feature, the first locator feature being offset with respect to the second locator feature.
16. An apparatus as claimed in claim 15 , wherein the complementary shaped channel is shaped so as to provide a clearance for receiving adhesive between the connector housing and at least a portion of one of the first or second walls.
17. An apparatus as claimed in claim 15 , wherein the first locator feature is configured so as to accommodate adhesive between the connector housing and the first locator feature.
18. An apparatus as claimed in claim 17 , wherein the first locator feature is configured to facilitate keying between the first locator feature and the adhesive.
19. An apparatus as claimed in claim 14 , wherein the complementary locator feature is configured so as to accommodate adhesive between the connector housing and the complementary locator feature.
20. An apparatus as claimed in claim 19 , wherein the complementary locator feature is configured to facilitate keying between the complementary locator feature and the adhesive.
21. An apparatus as claimed in claim 20 , wherein the adhesive is electrically conductive.