Finisar

About: Finisar is a company organization based out in Sunnyvale, California, United States. It is known for research contribution in the topics: Signal & Laser. The organization has 900 authors who have published 1523 publications receiving 22634 citations.

Electromagnetic inferference shield for an optoelectronic module

Abstract: An electromagnetic interference (“EMI”) shield that can help control the emission of electromagnetic radiation from an optoelectronic module in which the EMI shield is positioned. In one example embodiment, an EMI shield includes a base and plurality of flanges extending from a perimeter of the base. The base defines an optical subassembly (“OSA”) opening and a plurality of complementary structures. The OSA opening is configured to receive an OSA. Each complementary structure is configured to engage a complementary structure of an OSA connector block.

Vcsel with integral resistive region

Abstract: In one embodiment, a VCSEL includes a plurality of semiconductor layers, an insulative region, a resistive region, and a remainder region. The semiconductor layers include a lower mirror, an active region, and an upper mirror. The active region is disposed over the lower mirror and includes a first lasing region. The upper mirror is disposed over the active region. The insulative region and the resistive region are integrally formed in the semiconductor layers. The remainder region includes the semiconductor layers except for the insulative region and the resistive region integrally formed in the semiconductor layers. The insulative region is disposed between the resistive region and the remainder region.

Zero static power optical switch

Abstract: A micro electromechanical (MEMS) electromagnetic optical switch capable of redirecting light signals to a plurality of different output structures. The optical switch utilizes a movable mirror to redirect light signals. The mirror is magnetically moved into a predetermined fixed position by a magnetic member such that the mirror is positioned to redirect a light signal into one of a plurality of output structures. An electrical assembly induces a temporary magnetic field across the magnetic member to initiate the movement of the mirror.

Header assembly for optoelectronic devices

Abstract: A header assembly is provided that includes a base having a device side and a connector side. The header assembly further includes a platform attached to the base and positioned in a predetermined orientation with respect to the base. The device side of the base cooperates with a cap to define a hermetic chamber wherein one or more optoelectronic components, such as optical transmitters and optical receivers, are disposed. The platform includes an inside portion proximate the device side of the base and an outside portion proximate the connector side of the base, and the platform further includes at least one conductive pathway extending substantially through the platform so as to facilitate electrical communication between components disposed on the device side of the base, and circuits, devices and systems disposed on the connector side of the base.

Time division multiplexing of analog signals in an optical transceiver

Abstract: An optical transceiver module having a multiplexing analog control interface. The optical transceiver module comprises a controller and integrated post-amplifier/laser driver, which are included on a printed circuit board associated with the module. Transmitting and receiving optical sub-assemblies are also included in the module. A time division multiplexing analog control signal interface interconnects the controller with the integrated post-amplifier/laser driver. Digital control signals produced by the controller are converted and combined into a multiplexed analog control signal and transmitted via the interface to the integrated post-amplifier/laser driver. After receipt by the integrated post-amplifier/laser driver, the multiplexed analog control signal is divided into discrete analog control signals and forwarded to a plurality of control devices that use the control signals to modify a plurality of operating parameters of the transceiver module. The time division multiplexing analog control signal interface can also be employed to provide feedback to the controller relating to the operation of the control devices.