Laurence Ray Mccolloch

7190706, Mar 13, 2007

Dec 10, 2003

10/732994

Laurence Ray McColloch - Santa Clara CA, US

Avago Technologies Fiber IP (Singapore) Ptd. Ltd. - Singapore

H01S 3/04

372 34, 372 35, 372 36, 372 3802, 372 53

A laser package includes a submount, a laser die mounted on the submount, a lid mounted on the submount over the laser die, and a soft metal disposed between the laser die and the lid, wherein the soft metal conducts heat between the laser die and the lid. The soft metal is able to creep or cold flow under pressure to accommodate for varying manufacturing tolerances and varying thermal expansion rates of the elements in the laser package.

7331720, Feb 19, 2008

Jan 31, 2007

11/669247

Laurence Ray McColloch - Santa Clara CA, US

Avago Technologies Fiber IP Pte Ltd - Singapore

G02B 6/42

385 88, 385 14, 385 15, 359808

A transceiver module for optical communications is provided in which the leadframe assembly includes at least first and second die attach regions to which the laser diode driver IC and the laser diode IC are secured, respectively. A slot formed in the leadframe between the first and second die attach regions provides an air gap that at least partially thermally isolates the laser diode IC from the laser diode driver IC. This air gap results prevents heat generated by the laser diode driver IC from appreciably affecting the temperature of the laser diode IC, and thus from detrimentally affecting the performance of the laser diode IC. This slot also allows contact pads of the laser diode IC to be directly connected by leads to contact pads of the laser diode driver IC, which reduces the lengths of the leads and thus their inductances, which prevents EMI problems from occurring.

7537476, May 26, 2009

Feb 2, 2008

12/025016

Laurence R. McColloch - Santa Clara CA, US

Avago Technologies Fiber IP (Singapore) Pte. Ltd. - Singapore

H01R 13/64

439372, 439157

An optical transceiver module is provided that has an eccentric latching bail mechanism that includes a latch having a boss pocket formed therein that mates with a boss formed on the transceiver module housing when the latching mechanism is in the locked position. The mating of the boss and boss pocket in the locked position of the latching mechanism provide the latching mechanism with a high degree of stiffness that ensures that forces that are exerted on the latch lock pin by elements other than the latching bail mechanism are transferred to the transceiver module housing rather than through the bail. This, in turn, obviates problems associated with existing spring loading latching mechanisms that are less stiff and that allow forces exerted on the latch lock pin to be transferred through the bail.

7543994, Jun 9, 2009

Mar 7, 2007

11/683118

Laurence Ray McColloch - Santa Clara CA, US

Avago Technologies Fiber IP (Singapore) Pte. Ltd. - Singapore

G02B 6/36

385 89, 385 93, 385 92, 385115

A multi-fiber connector module for optical communications is provided that receives collimated beams of light from a transceiver module and focuses the collimated beams to respective focal points that coincide with the ends of respective transmit fibers. Because the inputs to the connector module are collimated light beams, movements of one or more parts of the connector and/or transceiver module will not result in optical losses as long as the movements are not so great as to prevent the collimated light beams from falling fully on the lenses of the optics system of the connector module. The lenses then focus the collimated light beams onto the ends of the transmit fibers.

7543997, Jun 9, 2009

Feb 7, 2008

12/027393

Laurence R. McColloch - Santa Clara CA, US

Avago Technologies Fiber IP (Singapore) Pte. Ltd. - Singapore

G02B 6/36

385 92, 385 88

An EMI system is provided for use with an optical transceiver module. The EMI system comprises electrically conductive spring fingers that are movably disposed in a slot formed in the transceiver module housing such that a part of each spring finger is in contact with a part of the metallic transceiver module housing and such that a part of each spring finger is in contact with a part of one of the metallic ports. Because the spring fingers are movable within the slot formed in the module housing, the spring fingers maintain contact with the housing and with the ports during movement of the ports, i. e. , as the ports float. Because the ports are allowed to float without causing the contact between the ports and the spring fingers or between the spring fingers and the housing to be lost, the ports automatically align with the connectors when the connectors are connected to the ports. Thus, the need for performing an active alignment process to align the ports with the connectors is avoided.

7553091, Jun 30, 2009

May 21, 2007

11/751101

Laurence Ray McColloch - Santa Clara CA, US

Avago Technologies Fiber IP (Singapore) Pte. Ltd. - Singapore

G02B 6/36

385 90, 385 53, 385 58, 385 65, 385 71, 385 59

The connector modules that are designed and shaped to mate with one side of the receptacle of the panel have mating devices that enable them to be stacked one atop the other inside of the receptacle in a relatively rigid stack. The connector modules that are designed and shaped to mate with the other side of the receptacle of the panel have mating devices that enable them to be held in slots that are slightly separated from one another by air gaps to allow them to “float” in the receptacle. By floating the connector modules in one side of the receptacle while having a relative rigid stack of connector modules in the other side of the receptacle, it is ensured that very precise optical alignment will be maintained between the respective lenses in the connector modules that face each other in the receptacle.

7566245, Jul 28, 2009

Feb 6, 2008

12/027027

Laurence R. McColloch - Santa Clara CA, US

Avago Technologies Fiber IP (Sinapore) Pte. Ltd. - Singapore

H01R 13/648

439607, 439927

An EMI system is provided for use with an optical transceiver module. The EMI system comprises an EMI collar that is secured about the housing of the transceiver module. The EMI collar is configured such that when the collar is secured to the module housing and the module is contained within a cage, features on the EMI collar provide electrically conductive pathways between the module housing and the cage.

7597590, Oct 6, 2009

Sep 5, 2008

12/205328

Laurence R. McColloch - Santa Clara CA, US

Avago Technologies Fiber IP (Singapore) Pte. Ltd. - Singapore

H01R 13/648

43960718, 4396072, 29874

An EMI collar is provided that is configured to be secured about a housing of a pluggable optical transceiver module. The configuration of the EMI collar and the method by which the collar is attached to the housing of the transceiver module ensures that the collar will not be damaged when the transceiver module housing is inserted into a cage. Ensuring that the collar will not be damaged during insertion ensures that electrically conductive contact points on the collar will not be eliminated by insertion of the housing into a cage. In addition, dimples, or indentations, formed on the spring fingers of the EMI collar result in additional electrically conductive contact points on the fingers that result in a reduction in the size of the maximum EMI aperture dimension of the collar. Reducing the maximum EMI aperture dimension of the collar greatly improves the ability of the collar to attenuate EMI signals, even EMI signals having high frequencies.