Avago Technologies Fiber IP (singapore) Pte. Ltd

Salvatore Sabbatino

Silvio Lupo

Piero Gambini

Enrico Di Mascio

Giammarco Rossi

Cristiana Contardi

Chenyuan Liu

A transceiver module includes a receptacle assembly that isolates the signal ground potential at which an opto-electronic subsystem operates from the chassis ground potential at which the transceiver module housing is maintained, while also helping maintain optical alignment of the system elements. The receptacle assembly can include a receptacle made of metal, a coupling made of metal, and a connector made of a dielectric material. The connector is interposed between the receptacle and the coupling to electrically isolate the signal ground potential of the opto-electronic subsystem from the chassis ground potential of the housing and receptacle. As the metal receptacle is mounted in an opening of the housing, it helps shield the housing against EMI.

Optical transceiver module providing EMI shielding and electrical isolation between a signal ground and a chassis ground

Connection arrangement for optical communication systems

A transmitter optical sub assembly includes a laser source having associated therewith a laser driver and a package for housing the laser source () and the laser driver. The package includes respective separate compartments for the laser source and the laser driver, wherein a package wall, which is opaque to IR emission, separates the laser source from the laser driver. The laser source and the laser driver are arranged in those separate compartments whereby the laser source is exempt from being directly irradiated by the laser driver.

Transmitter optical sub assembly, for instance for high speed optical transceivers

Electro-optical apparatus includes a housing having at least one electrical subassembly (ESA) and at least one optical subassembly (OSA) therein as well as cavities within the housing and paths for transmitting electrical signals between the electrical and optical subassemblies. A glob top material is applied on at least a part of said paths, and hardened mass of a liquid electromagnetic absorber material at least partly fills the cavities in the housing. The hardened absorber material provides radiation absorption for the electro-optical apparatus and the glob top material protects the transmission paths from the absorber material, thereby avoiding undesired absorption of useful signals.

Radiation absorption in electro-optical devices

Growing community of inventors

Turin, Italy

Salvatore Sabbatino