Avago Technologies General IP (singapore) Pte. Ltd.

Micron Technology Incorporated

Aptina Imaging Corporation

Robert G Ritter

Frank David Yashar

Richard Paul Tella

Timothy James Orsley

David J K Meadowcroft

Paul Yu

David Meadowcroft

Chaitanya Arekar

Pengyue Wen

Hui Xu

Sunil Priyadarshi

Venkatesh Seetharam

A heat dissipation system for an optical communications module is provided that includes a cold block on which the optoelectronic components and a lens assembly of an OSA of the module are mounted. The cold block has precisely-controlled mounting surface heights that precisely passively align the lens assembly in directions normal to mounting surfaces of the cold block. The cold block is made of a material of very high thermal conductivity, typically copper, so that heat generated by the optoelectronic components is dissipated into the cold block to maintain the optoelectronic components well below maximum allowable temperatures. In addition, an optical interface device of the OSA has a low-profile and an optical configuration that allows it to be used with a high optical fiber count.

Methods, devices and systems that dissipate heat and facilitate optical alignment in optical communications modules

An optical communications module includes a housing that accommodates at least one optical receptacle having a cylindrical connector portion. The module further includes at least one deformable constraining member made of a material having a Young's modulus that allows the deformable constraining member to take on an initial deformity upon application of a compression force, but permits only a partial reversal of the deformity upon reduction or removal of the compression force. The initial deformity is created when the deformable constraining member is pressed against the cylindrical connector portion during assembly of the module. The initial deformity includes a deformed contour portion that conforms to at least a part of the cylindrical connector portion of the optical receptacle and prevents wiggling of the cylindrical connector portion after the cylindrical connector portion is pushed during assembly into an alignment notch provided in a lower housing portion of the module.

Optical communications module incorporating a deformable constraining member for constraining an optical receptacle

A ferrule of an optical communications module is allowed to float to a limited degree within the module housing. Consequently, if a force is exerted on the connector that mates with the optical communications module, the mated ferrules of the module and of the connector moves, or floats, within defined limits so that the ferrules move together rather than relative to one another. In this way, the end faces of the ferrules remain in precise alignment to prevent wiggle losses from occurring due to movement of the connector relative to the module housing.

Optical communications module having a floating ferrule that reduces wiggle loss

An optical connector includes a connector housing, a retaining plate, and two pins. The connector housing has two bores extending between rearward and forward ends of the connector housing. The retaining plate has a central opening with notches in two of its sides. Each pin extends through one of the notches, which engages the respective groove. The pins extend through the respective bores in the connector housing.

Optical connector having improved guide pin retention

An optical finger navigation device and method for making the device uses a light pipe array lens, which includes an array of light pipes formed in a monolithic block of material. The light pipe array lens is configured to function similarly to a fiber bundle lens to transmit light through the lens using the light pipes in the monolithic block of material.

Light pipe array lens, optical finger navigation device with the lens and method for making the device

A locking positioning mechanism includes a first element and a second element, the first element and second element rotatable relative to one another about a common rotational axis between a locked orientation and an unlocked orientation and axially translatable relative to one another. The mechanism further includes one or more first locking surfaces of the first element and one or more second locking surfaces of the second element. The second locking surfaces are configured to clear the first locking surfaces in the unlocked orientation. The second locking surface is configured for an interference fit with a first locking surface in the locked orientation.

Growing community of inventors

Los Altos, CA, United States of America

Robert G Ritter