FIBER OPTIC LINK HAVING AN INTEGRATED LASER AND PHOTODETECTOR CHIP
Granted: January 29, 2009
Application Number:
20090028579
A fiber optic communications link is disclosed that can include first and second nodes operably connected by a multi-mode optical fiber and that utilizes two distinct optical wavelengths for enabling the bidirectional transfer of data via the optical fiber between the first and second nodes. Each node can include an integrated transmitter/receiver chip that includes a substrate, an optical receiver or transmitter, a filter, and an optical transmitter or receiver. The transmitter of the…
ANECHOIC STRUCTURES FOR ABSORBING ELECTROMAGNETIC INTERFERENCE IN A COMMUNICATIONS MODULE
Granted: January 15, 2009
Application Number:
20090015456
A communications module includes an interior configuration designed to intercept, disrupt, and scatter EMI produced by the module during operation. The interior configuration may include an anechoic structure that includes a plurality of anechoic elements positioned proximate EMI-producing components within the module. The anechoic elements may form truncated pyramids, columns having rounded tops, cones, or other shapes. The anechoic elements may be uniform or non-uniform in size,…
HEADER ASSEMBLY FOR EXTENDED TEMPERATURE OPTICAL TRANSMITTER
Granted: January 15, 2009
Application Number:
20090016391
A header assembly for extended temperature optical transmitters is disclosed. The header assembly may include a hermetic enclosure and a header base with an interior surface. A plurality of conductive leads penetrate from the outer portion of the header assembly to the interior surface. A thermoelectric cooler (“TEC”) having a planar configuration and a thickness not exceeding 500 microns is positioned adjacent to the interior surface of the header assembly, the TEC being in thermal…
ELECTRONIC DISPERSION COMPENSATION SYSTEMS AND METHODS
Granted: January 15, 2009
Application Number:
20090016737
An electronic dispersion compensation module may perform one or more electronic dispersion compensation solutions. The electronic dispersion compensation module may include a solution control module. The solution control module may configure the electronic dispersion compensation module to perform an electronic dispersion compensation solution using data indicating a bit error rate. A bit error rate module may create the data indicating a bit error rate. The bit error rate module may…
OPTICAL COMPONENT AND TRANSCEIVER PACKAGING
Granted: January 8, 2009
Application Number:
20090010600
An optical module and packaging thereof. A high speed optical module, such as a transceiver or transponder is disclosed. A fiber assembly including a receptacle, a fiber, and a modified connector are provided and enable an optical connection from inside of the optical component to outside of the component. Internally, the fiber assembly is detachable from an internal optical component. the optical component is connected to a PCB using a ball grid array. By detaching the fiber assembly,…
CHIRPED LASER WITH PASSIVE FILTER ELEMENT FOR DIFFERENTIAL PHASE SHIFT KEYING GENERATION
Granted: January 1, 2009
Application Number:
20090003842
Apparatus and methods for driving a transmitter to generate DNPSK signals is disclosed including generating N data streams comprising data symbols and for each of a plurality of sets of N simultaneous data symbols of the N data streams, imposing signals are on L of a plurality of signal lines, with the value of L corresponding to values of the N simultaneous data symbols. Signals on the plurality of signal lines are ANDed with a clock signal synchronized with the N data streams to…
CONNECTOR RECEPTACLE WITH RECEPTACLE EMI SHIELD
Granted: January 1, 2009
Application Number:
20090004915
An electrical connector receptacle that includes receptacle-side electrical contacts, a socket, and a receptacle shield. The socket is configured such that a connector may be inserted therein allowing the electrical contacts of the connector to interface with the receptacle-side electrical contacts. The receptacle shield is placed in the back of the receptacle, and is composed of an Electro-Magnetic Interference barrier material. In one embodiment, the receptacle shield is configured to…
ELECTRICAL CONNECTOR WITH EMI SHIELD
Granted: January 1, 2009
Application Number:
20090004917
An electrical connector having an electrical interface assembly electrical processing circuitry, and an EMI barrier. The electrical interface assembly has a plurality of electrical contacts for interfacing with a receptacle when the electrical connector is connected to a corresponding receptacle. The electrical processing circuitry is for processing electrical signals received from at least some of the plurality of electrical contacts and/or to be sent to the plurality of electrical…
MOLDED CARD EDGE CONNECTOR FOR ATTACHMENT WITH A PRINTED CIRCUIT BOARD
Granted: December 25, 2008
Application Number:
20080318478
An edge connector suitable for attachment with a printed circuit board. The edge connector comprises a body composed of a plastic resin, the body defining a first end that is configured to operably attach to a portion of a printed circuit board and a second end configured to operably connect to a slot in a host device and a plurality of conductive traces and contact pads defined on a portion of a surface of the body, the traces being configured to electrically connect with corresponding…
SECURING A TRANSISTOR OUTLINE CAN WITHIN AN OPTICAL COMPONENT
Granted: December 18, 2008
Application Number:
20080311689
The present invention relates to affixing components of optical packages. The optical packages can include an optical component, such as a TO-Can. The TO-Can can house an optical transmitter and/or an optical receiver. Another optical component of the optical package can be a barrel for aligning the TO-Can with an optical fiber. The TO-Can can be affixed within an open end of the optical barrel using a bonding substance, such as an epoxy, that has wicking properties. The wicking…
ELECTROMAGNETIC RADIATION SHIELD FOR AN OPTICAL SUBASSEMBLY
Granted: December 4, 2008
Application Number:
20080298041
In one example embodiment, an electromagnetic radiation (EMR) shield includes a central portion, an opening defined in the central portion, a wing attached to and extending outward from the central portion, and a protrusion defined in the wing. The perimeter of the EMR shield is approximately the same size and shape as that of a portion of an associated optical subassembly (OSA).
OPTIMIZATION OF LASER PARAMETERS TO ACHIEVE DESIRED PERFORMANCE
Granted: December 4, 2008
Application Number:
20080301595
One example disclosed herein relates to a method of at least partially optimizing one or more output performance parameters of a laser die. The method includes an act of identifying one or more output performance parameters to be at least partially optimized, an act of identifying one or more design parameters associated with the one or more output performance parameters, an act of determining a subset of the one or more design parameters that should be varied so as to at least partially…
TUNING SELECT FIBER OPTIC CHANNELS FOR CHANNEL MONITORING
Granted: December 4, 2008
Application Number:
20080298804
A tunable element of a tuning module is receptive to optical data channels of a multiplexed optical data signal, each optical data channel having a different respective wavelength. The tunable element is responsive to different stimuli such that multiple passbands of the tunable element are defined, each passband corresponding to a respective stimulus and including no more than one wavelength of the optical data channels. An optical detector communicates with the tunable element and is…
ELECTRONIC DISPERSION COMPENSATION SYSTEMS AND METHODS
Granted: December 4, 2008
Application Number:
20080298801
A test has been developed that is known as the transmitter waveform dispersion penalty (TWDP) test. The TWDP test has been used to test and certify various optical data transmission devices. Similar tests are being developed to test optical receivers such as a difference waveform distortion penalty (dWDP). A test pattern used to generate the transmitted sequence by the device under test is a PRBS9. The PRBS9 test pattern begins with a run of nine ones and has a length of 511 bits.…
ELECTROMAGNETIC RADIATION SHIELD FOR AN OPTICAL SUBASSEMBLY
Granted: December 4, 2008
Application Number:
20080298752
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 RADIATION SHIELD FOR AN OPTICAL SUBASSEMBLY
Granted: December 4, 2008
Application Number:
20080298750
In one example embodiment, an electromagnetic radiation (EMR) shield includes a disk, and a substantially centrally located opening defined in the disk. An outside perimeter of the disk is approximately the same as that of a flange of an associated optical subassembly (OSA). The disk defines a plurality of apertures.
OPTICAL BEAM STEERING FOR TUNABLE LASER APPLICATIONS
Granted: November 27, 2008
Application Number:
20080291950
A transmitter is disclosed including a laser array comprising a plurality of lasers spatially offset from one another and each having a laser output having a unique wavelength. A first prism is positioned to impart a first angular shift to the laser outputs to produce and a second prism is positioned to impart a second angular shift opposite the first angular shift on the outputs. An index modulating element is coupled to one of the first and second prisms and a controller is…
Intelligent Transmitter Module
Granted: November 27, 2008
Application Number:
20080292311
An intelligent transmitter module (“ITM”) includes a CDR circuit for equalizing and retiming an electrical data signal, a driver for generating a modulation signal and/or performing waveform shaping of the equalized and retimed signal, and an optical transmitter configured to emit an optical signal representative of the data signal. A linear amplifier may also be included to amplify the modulation signal when the optical transmitter is a laser with managed chirp. Alternately or…
INTEGRATED MULTIPLEXER/DEMULTIPLEXER HAVING OFFSET TRANSMITTERS AND RECEIVERS FOR USE IN AN OPTICAL TRANSCEIVER MODULE
Granted: November 27, 2008
Application Number:
20080292317
An apparatus for use in an optical transceiver module that incorporates an integrated multiplexer/demultiplexer for high speed data transfer applications. One example embodiment includes a transmissive block arranged to interface with a transmit optical port, a receive optical port, and a plurality of optical subassemblies. The transmit optical port may transmit a first multiplexed optical signal and the receive optical port may receive a second multiplexed optical signal. Filters may be…
OPTOELECTRONIC DEVICES WITH INTELLIGENT TRANSMITTER MODULES
Granted: November 27, 2008
Application Number:
20080292322
An optoelectronic device can implement an intelligent transmitter module (“ITM”), rather than a conventional TOSA, for the transmission of optical data signals. The ITM can include an optical transmitter, a CDR and driver IC, and a microcontroller and/or linear amplifier. Space available in the optoelectronic device due to using an ITM rather than a TOSA and PCB-bound CDR, driver, microcontroller, and/or linear amplifier can be used for the inclusion of one or more electronic and/or…
