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.

Transistor outline can with in-line electrical couplings

Abstract: An example embodiment includes a TO can including a header, an RF pin opening, an internal volume, an RF pin, a submount, and a flex circuit. The header defines the RF pin opening. The internal volume is defined by a TO can housing and an interior header surface. The RF pin extends through the RF pin opening such that a first surface connection is located in the internal volume and a second surface connection is located outside of the internal volume and extends past an exterior header surface. The submount is located in the internal volume and the submount includes a submount trace. The submount trace includes a pin connection portion in-line with the RF pin and electrically coupled to the first surface connection. The flex circuit includes a flex trace further including a flex trace connection in-line with the RF pin and electrically coupled to the second surface connection.

Optoelectronic module classification clip

Abstract: A classification clip for an electronic or optoelectronic module. In one example embodiment, an optoelectronic module classification clip includes a body, a complementary structure attached to the body and configured to engage a complementary structure of a shell of an optoelectronic module, and a visible indicator included on at least a portion of the body or the complementary structure. The visible indicator indicates information concerning a characteristic of the optoelectronic module.

Method and apparatus for monitoring a photo-detector in an optical transceiver

Abstract: The method and apparatus for monitoring a photo-detector generates a highly compliant mirror current across a broad range of photo-detector current levels. The apparatus for monitoring includes: a pair of bipolar transistors and a first non-linear isolation element. The pair of transistors are connected in a mirror configuration with a sense transistor one of the pair of transistors sensing a photo-detector current and with a mirror transistor one of the pair of transistors mirroring the photo-detector current with a mirror current. The first non-linear isolation element has at least two terminals a first of which couples to the collector of the mirror transistor. The first non-linear isolation element exhibits a non-linear voltage drop between the at least two terminals in response to varying levels of the mirror current to improve compliance between the mirror current and the detector current. Methods and means for monitoring a photo-detector are also disclosed.

Method and apparatus for testing PCBA subcomponents

Abstract: An evaluator board for testing a printed circuit board assembly device subcomponent includes one or more receiving surfaces mounted on the evaluator board, and a securing mechanism positioned over at least one of the one or more receiving surfaces. The receiving surfaces can include a connection base and an electronic receptacle for receiving conductive elements of the subcomponent to be tested. In one implementation, at least one of the one or more receiving surfaces is configured to receive an edge connector of a form factor pluggable printed circuit board. In addition, one or more active and passive circuitry components can be mounted on opposing surfaces of the evaluator board in order to minimize the size and number of components used in the testing of the PCBA subcomponent.

Method of monitoring an optoelectronic transceiver with multiple flag values for a respective operating condition

Abstract: An optoelectronic transceiver includes an optoelectronic transmitter, an optoelectronic receiver, memory, and an interface. The memory is configured to store digital values representative of operating conditions of the optoelectronic transceiver. The interface is configured to receive from a host a request for data associated with a particular memory address, and respond to the host with a specific digital value of the digital values. The specific digital value is associated with the particular memory address received from the host. The optoelectronic transceiver may further include comparison logic configured to compare the digital values with limit values to generate flag values, wherein the flag values are stored as digital values in the memory.