| Patent Number |
Title Of Patent |
Date Issued |
| 7620331 |
Receiver circuit having an optical receiving device |
November 17, 2009 |
| The invention relates to a receiver circuit having an optical receiving device, a plurality of amplifiers that are connected to the receiving device, and circuit means or a control circuit for individually activating and deactivating the individual amplifiers. In this case, the ampli |
| 7620317 |
Programmable loss of signal detect hardware and method |
November 17, 2009 |
| A loss of signal assert and de-assert level programming mechanism in an optical transceiver coupled to a host computing system. A control module is connected to the host so as to receive the programmable loss of signal level. A post-amplifier detects when the receive power drops below a |
| 7616902 |
Power source for a dispersion compensation fiber optic system |
November 10, 2009 |
| This invention generally relates to an optical filter for a fiber optic communication system. An optical filter may be used, following a directly modulated laser source, and converts a partially frequency modulated signal into a substantially amplitude modulated signal. The optical f |
| 7614913 |
Connector receptacle with receptacle EMI shield |
November 10, 2009 |
| 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 elec |
| 7613401 |
Optical FM source based on intra-cavity phase and amplitude modulation in lasers |
November 3, 2009 |
| A fiber optic communication system comprising: an optical signal source adapted to receive a binary base signal having a bit period T, and generate a first signal, wherein the first signal is frequency modulated; and an optical spectrum reshaper (OSR) adapted to reshape the first s |
| 7613393 |
Transceiver module and integrated circuit with dual eye openers and integrated loopback and bit |
November 3, 2009 |
| A transceiver module having integrated eye diagram opening functionality for reducing jitter is described. The transceiver module may include a transmitter eye opener and a receiver eye opener integrated in single circuit. The transceiver module may also include serial control and va |
| 7610494 |
Encrypted microcode update of an optical transceiver |
October 27, 2009 |
| An optical transceiver (or optical transmitter or optical receiver) that has at least one processor and a memory. The optical transceiver receives encrypted microcode from a source. The optical transceiver may then decrypt the received microcode to create decrypted microcode. The dec |
| 7609977 |
Optical transmission using semiconductor optical amplifier (SOA) |
October 27, 2009 |
| A fiber optic communication system is disclosed having an optical signal source adapted to produce an amplitude and frequency modulated signal encoding binary data wherein high intensity 1 bits are red shifted relative to lower intensity 0 bits. The amplitude and frequency modulated |
| 7609733 |
Laser diode assembly and device for operating a laser diode |
October 27, 2009 |
| The invention is directed to a laser diode assembly having a laser diode and a support, whereon the laser diode is arranged or formed in one single piece. The laser diode assembly further includes a coupling capacitor integral therewith, wherein the laser diode is subjected to the ac |
| 7609102 |
Pattern-dependent phase detector for clock recovery |
October 27, 2009 |
| A phase detector apparatus and method used for clock recovery from a data signal is provided. The phase detector provides phase correction signals to a clock signal generator, where the phase correction signals are only generated if a predetermined data sample pattern is observed. In |
| 7606500 |
Scalable transceiver based repeater |
October 20, 2009 |
| Systems and methods for repeating optical signals. A scalable transceiver based repeater includes one or more transceivers. Each transceiver includes an optical receiver that receives a channel of an optical signal. The optical transmitter in each transceiver transmits the channel re |
| 7606486 |
Protocol specific transceiver firmware |
October 20, 2009 |
| An optical transceiver (or optical transmitter or optical receiver) that has at least one processor, and a memory. The optical transceiver is capable of implementing any one of a number of protocols depending on how the optical transceiver is configured in microcode. In order to so c |
| 7606282 |
Optimizing VCSEL mirrors for improving temperature response |
October 20, 2009 |
| Improved slope efficiency in a VCSEL can be accomplished by selecting particular mirror layer compositions and/or mirror layer configurations that minimize increased reflectivity in the top mirror and/or maximize increased reflectivity of the bottom mirror with increasing temperature. |
| 7606279 |
Thin INP spacer layer in a high speed laser for reduced lateral current spreading |
October 20, 2009 |
| Embodiments disclosed herein relate to high-speed lasers such as FP and DFB lasers. In one embodiment, the high speed laser comprises a substrate, an active region positioned above the substrate, a mesa positioned above the active region, and one or more layers disposed between the a |
| 7603012 |
Optical cable with peelable strength member portion |
October 13, 2009 |
| A fiber optic cable that includes one or more optical fibers, and one or more strength members spanning the length of the cable. The cable also includes a protective jacket protecting the cable across all, or at least substantially all of its length. One or more ends of the cable (and |
| 7599583 |
Sensors with modular architecture |
October 6, 2009 |
| A modular sensing system architecture. A sensing system includes multiple planes that are in electrical communication. A power plane provides a power source and a communications module that can be optical and/or electrical in nature. The power source can be upgraded using optical pow |
| 7597486 |
Managing backreflection |
October 6, 2009 |
| In one example, an optical device includes a body having a first surface and a second surface. At least a portion of the body is formed from a material that is transmissible to light. The body is configured to be positioned in an optical sub-assembly along an axis defined between an |
| 7596165 |
Distributed Bragg Reflector for optoelectronic device |
September 29, 2009 |
| A Distributed Bragg Reflector (DBR) that has relatively low light absorption, relatively low electrical resistance, and/or relatively good thermal conductivity. The DBR may include a first mirror layer and a second mirror layer, with an interface therebetween. A step transition is pr |
| 7595630 |
Automated laser header testing |
September 29, 2009 |
| Systems for automated laser header testing are disclosed. A system can include a base portion, a rotary stage supported by the base portion, at least one testing site supported by the rotary stage, and a plurality of testing stations supported by the base portion and radially arranged |
| 7594766 |
Integrated optical transceiver array |
September 29, 2009 |
| An integrated array for optoelectronic components in an optical communications system is disclosed. The integrated array incorporates a plurality of optoelectronic modules, such as optical transceivers, in a compact, integrated geometry for positioning within an optical device, such |
| 7593608 |
Optical communications system |
September 22, 2009 |
| In an optical communications link, an optical system including: at least a first input port for delivering an optical signal travelling in the communications link, the optical signal including a plurality of wavelength channels, the channels being utilized for carrying optical inform |
| 7593345 |
Altering latency for network testing |
September 22, 2009 |
| Systems and methods for altering a latency of network messages. A latency control system is configured to alter the latency of one or more network messages transmitted in a network. The latency of the network messages may simulate a latency associated with a network connection. A message |
| 7592869 |
Variable gain amplifier having dual gain control |
September 22, 2009 |
| An electronic amplifier circuit that provides improved gain control linearity characteristics resulting from having a controllable field effect transistor (FET) acting as a degeneration resistance (degeneration resistance FET) and a controllable load resistance FET. The overall gain |
| 7590351 |
Extinction ratio control using a frequency spread tone to modulate optical signal power levels |
September 15, 2009 |
| An optical transmitter that controls the extinction ratio by modulating a power level of an optical signal using a frequency spread tone. An electro-optic transducer driver generates an electrical signal that is to be converted into an optical signal. Meanwhile, a tone generator gene |
| 7585546 |
Surface passivation and sealing of micro-optics devices for improved performance in harsh enviro |
September 8, 2009 |
| Methods and structures for reducing and/or eliminating moisture penetration in an optical package. The optical package may include (1) a layer of inorganic material placed over the points of the optical package susceptible moisture penetration of the optical package; (2) a portion of |
| 7580638 |
Optical transceiver module with multipurpose internal serial bus |
August 25, 2009 |
| The optical-transceiver module includes an optical transmitter and an optical receiver. The optical transceiver module also includes an internal serial bus and a plurality of addressable components electrically coupled to the internal serial bus. Each of the addressable components in |
| 7580434 |
Dual laser driver architecture in an optical transceiver |
August 25, 2009 |
| Embodiments disclosed herein relate to a dual laser driver architecture configured to be implemented on a single IC chip. The dual laser driver architecture includes at least a first laser driver stage configured to drive a first laser with a first current and a second laser driver stage |
| 7573925 |
Semiconductor laser having a doped active layer |
August 11, 2009 |
| Semiconductor lasers having a doped active region. In one example embodiment, a laser includes a substrate and a doped active region positioned above the substrate. The doped active region includes a plurality of quantum wells separated by a plurality of barrier layers. The quantum w |
| 7572069 |
Surface warp resistant optical devices |
August 11, 2009 |
| In at least one example, an optical component includes a central optical surface proximate an optical axis, a peripheral portion extending radially from the central optical surface, and a stepped portion between the central optical surface and the peripheral portion. The stepped port |
| 7567758 |
Transceiver module and integrated circuit with multi-rate eye openers and bypass |
July 28, 2009 |
| A transceiver module having intergrated eye diagram opening functionality for reducing jitter is describe. The transceiver module may transmitter eye opener and a receiver eye opener integrated in a single circuit. The transceiver module may also include serial control and various other |
| 7567601 |
Semiconductor laser having low stress passivation layer |
July 28, 2009 |
| A laser diode having a composite passivation layer configured to control parasitic capacitance, especially in high speed laser applications, is disclosed. In one embodiment, a ridge waveguide laser is disclosed and includes: a substrate, an active layer disposed on the substrate, a ridge |
| 7566246 |
Collar clip for an electronic module |
July 28, 2009 |
| In one example embodiment, a collar clip includes a body that is sized and configured to partially encircle a shell of an optoelectronic transceiver module. Each extended element in a pair of the extended elements is separated from the other extended element in the pair by a cavity. Each |
| 7564889 |
Adiabatically frequency modulated source |
July 21, 2009 |
| A Distributed Feed-Back (DFB) laser integrated with an Electroabsorption (EA) modulator whose facet at the end of EA modulator section has finite reflectively to create adiabatic chirp by optical feedback to the DFB laser. |
| 7564887 |
Long wavelength vertical cavity surface emitting lasers |
July 21, 2009 |
| A vertical cavity surface emitting laser (VCSEL) includes independently definable current and optical confinement structures that provide unique forms of drive current and transverse mode confinement, respectively. The optical guide may be formed from an upper distributed Bragg reflector |
| 7564798 |
Methods and devices for testing and monitoring high speed communication networks |
July 21, 2009 |
| Devices and methods are disclosed for use in testing and evaluating aspects of a high speed communications network. In particular, a portable traffic checker for field use is provided that includes multiple sets of different types of communication links and is compatible with multiple |
| 7563035 |
Connector for box optical subassembly |
July 21, 2009 |
| Discloses is a transceiver module having a box optical subassembly, a printed circuit board, and a connector extending from the box optical subassembly to the printed circuit board. The box optical subassembly includes a laser diode, a laser driver, and at least one pin receiving a d |
| 7562804 |
Methods for manufacturing optical modules using lead frame connectors |
July 21, 2009 |
| Methods of manufacturing optical transceiver modules using lead frame connectors that connect optical sub-assemblies to printed circuit boards. The lead frame connectors include a conductive lead structure that is encased in an insert injection molded plastic casing. The lead frame c |
| 7562621 |
Bidirectional lens pressing system |
July 21, 2009 |
| A bidirectional lens pressing system for use in pressing a lens into a port housing is disclosed. The lens pressing system includes a frame that supports a top motor stage, a bottom motor stage, and an indexing stage. The indexing stage is interposed between the top and bottom motor stag |
| 7561855 |
Transceiver module and integrated circuit with clock and data recovery clock diplexing |
July 14, 2009 |
| An integrated circuit. The integrated circuit is usable in a transceiver module. The integrated circuit includes an input port that is configured to receive a data stream. A clock port on the integrated circuit is configured to receive a reference clock diplexed with another signal or |
| 7561809 |
Modulated laser with integral pre-distortion circuit |
July 14, 2009 |
| An integrated laser device includes a pre-distortion circuit. The pre-distortion circuit receives an electrical modulation signal and generates a pre-distorted modulation signal. A laser is integral with the pre-distortion circuit. The laser includes an electrical modulation input th |
| 7561766 |
Thin film interleaver |
July 14, 2009 |
| A thin film interleaver device is disclosed. The thin film interleaver includes thin film optics. The thin film(s) are formed such that they reflect one group of wavelengths while allowing a second group of wavelengths to pass through the thin film(s). The thin film(s) exhibit a flat |
| 7560298 |
Methods for producing a tunable vertical cavity surface emitting laser |
July 14, 2009 |
| Methods are disclosed for producing a tunable vertical cavity surface emitting laser (VCSEL) using photonic crystals and an electrostrictive material that includes a hologram with a narrow filter function. Photonic crystals are formed such that the active region of the VCSEL is bounded |
| 7559704 |
Horseshoe spring for securing an optical nosepiece during optical alignment |
July 14, 2009 |
| A system for retaining an optical subassembly in a shell of a communications module is disclosed. The system reduces stress imposed on a hermetic package of the optical subassembly during lead interconnection procedures while ensuring thermal contact of the package with a thermal pad |
| 7558489 |
Method and apparatus for monitoring the power level of two or more optical transmitters |
July 7, 2009 |
| Methods and apparatus for monitoring the power level of one or more optical emitters are provided. In some embodiments, optical signals from two or more optical emitters are directed at different regions of a photo detector. The photo detector may include two or more spaced contacts that |
| 7558488 |
Reach extension by using external Bragg grating for spectral filtering |
July 7, 2009 |
| A fiber optic system comprising a modulated signal source coupled to a spectral filtering element characterized in that the bandwidth of the optical spectrum of the signal after the spectral filtering element is reduced relative to the optical bandwidth of the spectrum before the fil |
| 7555225 |
Optical system comprising an FM source and a spectral reshaping element |
June 30, 2009 |
| An optical communication system which has an optical signal source adapted to receive a base binary signal and produce a first signal, said first signal being frequency modulated; andan optical spectrum reshaper adapted to reshape the first signal into a second signal, said second signal |
| 7553690 |
Starved source diffusion for avalanche photodiode |
June 30, 2009 |
| This disclosure is concerned with starved source diffusion methods for forming avalanche photodiodes are provided for controlling an edge effect. In one example, a method for manufacturing an avalanche photodiode includes forming an absorber layer and an avalanche layer over a substr |
| 7548675 |
Optical cables for consumer electronics |
June 16, 2009 |
| Digital optical cables for communication between digital consumer electronic devices. The digital optical cable can include an optical fiber, a first interface configured to couple a digital source device to a first end of the optical fiber, the first interface can comprise an optica |
| 7547149 |
Optical connector latch assembly for an optoelectronic module |
June 16, 2009 |
| An optical connector latch assembly for an optoelectronic module that can releasably engage an optical fiber connector that is received in a receptacle of the optoelectronic module. In one example embodiment, an optical connector latch arm includes a base, a shaft extending from the |
| 7546451 |
Continuously providing instructions to a programmable device |
June 9, 2009 |
| A system and method for enabling a programmable device to execute instructions without interruption. An instruction space for storing instructions from a host application is bifurcated to define a program segment and a hold segment. At startup, instructions are loaded into the hold s |
