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.

Optical Receiver With Threshold Voltage Compensation

Abstract: An optical receiver includes an optical detector having an input that is positioned to detect an optical data signal. The optical detector generates a voltage at an output that is proportional to an optical intensity of the optical data signal. A differential amplifier includes a data input that is electrically connected to the output of the optical detector and a decision threshold voltage signal input. The differential amplifier generates a data signal at a data output and an inverse data signal at a data_bar output. A decision threshold voltage signal generator includes an output that is coupled to the decision threshold voltage signal input of the differential amplifier. The decision threshold voltage signal generator generates a decision threshold voltage signal having an amplitude that causes the differential amplifier to maintain a substantially constant differential voltage between the data signal and the inverse data signal generated.

Snap-mounted and pluggable optoelectronic module

Abstract: An example embodiment includes a snap-mountable optoelectronic module. The module includes a frame, a cover, and a module latch. The frame includes two or more post blocks that each defines a module latch receiver. The cover is configured to at least partially enclose an inner assembly and includes a module latch recess. The module latch includes pivots and a latch portion. The pivots are received in the module latch receivers such that the module latch is configurable in an unlatched position and in a latched position. In the unlatched position, the latch portion is disengaged from the module latch recess. In the latched position, the latch portion is engaged with the module latch recess to retain the cover relative to the frame.

Thumbscrew for pluggable modules

Abstract: In one example, a pluggable module comprises a shell, a module connector, and one or more thumbscrews. The shell defines a cavity within which a PCB and one or more components are disposed and includes a front, back, first side, and second side. The module connector is operatively connected to the PCB near the back of the shell and extends from within the cavity to outside the shell through an opening defined in the back of the shell. The module connector is configured to operatively couple the pluggable module to a host device. The thumbscrews are housed within one or more portions of the shell and are configured to threadably secure the pluggable module to the host device. Each of the thumbscrews comprises a torque limiter. The pluggable module can further comprise protecting means for protecting a portion of the module connector extending outside the cavity from damage.

Electromagnetic radiation shield for an optical subassembly

Abstract: In one example embodiment, an electromagnetic radiation (EMR) shield includes a central portion, a plurality of arms extending radially outward from the central portion, and a substantially centrally located opening defined in the central portion The perimeter of the central portion is approximately the same size and shape as that of a portion of an associated optical subassembly (OSA)

Electromagnetic interference shield

Abstract: An electromagnetic interference (EMI) shield may include a first shield section configured to be positioned on a first portion of an optical subassembly and a second shield section configured to be positioned on a second portion of the optical subassembly. The first shield section may be configured to contact the second shield section such that the first shield section and the second shield section are held in place when the first shield section and the second shield section are positioned, respectively, on the first portion and the second portion of the optical subassembly.