| Patent Number |
Title Of Patent |
Date Issued |
| 7277467 |
Externally aligned laser module |
October 2, 2007 |
| Disclosed is a laser module case having a snout disposed within a wall of the case, wherein the snout may allow alignment of a laser with an optical fiber after closure of the case. The snout has an inner end, outer end and longitudinal hollow. An optical fiber assembly, also with an |
| 7161170 |
Doped-absorber graded transition enhanced multiplication avalanche photodetector |
January 9, 2007 |
| An InGaAs/InAlAs-based avalanche photodetector provides high gain and high bandwidth over a range of operating biases. A graded transition region alleviates the barrier to electron transport from the absorption region to the multiplication region when an operating bias is applied. The |
| 7085442 |
Optoelectronic device, method of manufacturing thereof, and system including the same |
August 1, 2006 |
| The present invention provides an optoelectronic device, a method of manufacturing thereof, and an optical communications system including the same. The optoelectronic device includes an optical substrate coupled to a submount and including an optical device, and a signal and a ground |
| 7084044 |
Optoelectronic device and method of manufacture thereof |
August 1, 2006 |
| The present invention provides an optoelectronic device and a method of manufacture thereof. In one embodiment, the method of manufacturing the optoelectronic device may include creating a multilayered optical substrate and then forming a self aligned dual mask over the multilayered |
| 7057158 |
Optical subassembly for high speed optoelectronic devices |
June 6, 2006 |
| A high speed interface for optoelectronic devices is disclosed that includes a housing adapted to receive a distal end of a fiber having a slanted end face. The end face of the fiber is optically coupled to an optoelectronic device mounted in the housing. The fiber cladding between t |
| 7042645 |
Micro-lens array and method of making micro-lens array |
May 9, 2006 |
| A micro-lens array and a method for making are described. The micro-lens array includes a base element and a plurality of lenses formed of an epoxy and including nanoparticles. The micro-lens array is formed from a master micro-lens array, which is placed within a replica micro-lens |
| 7024059 |
Optoelectronic receiver and method of signal adjustment |
April 4, 2006 |
| An optoelectronic receiver having a variable transfer function to compensate for operational condition change. The receiver comprises a linear circuit having a tunable filter. A control circuit provides a signal to the tunable filter. The control circuit is connected to one or more s |
| 7024057 |
Optical device having dual microstrip transmission lines with a low-k material and a method of m |
April 4, 2006 |
| The present invention provides an optical device. In one embodiment, the optical device includes an optical waveguide formed in or over a ridge located on a substrate. The optical device also includes a microstrip transmission line comprising a signal electrode and a ground electrode |
| 7016382 |
Method and apparatus for stabilizing laser wavelength |
March 21, 2006 |
| Laser wavelength stabilization is achieved by locating a low selectivity reference filter in a reference path of a laser beam. The low selectivity reference filter, with a periodicity greater than the control filter, is used together with a lookup table for the reference filter to resolv |
| 7016097 |
Optical device with a temperature insensitive optical pathlength |
March 21, 2006 |
| The thermo-optic behavior of an optical path over a range of temperatures is controlled by determining a figure of merit (FoM) for the optical path and including in the path a body of NaBi(Mo.sub.1-xW.sub.xO.sub.4).sub.2 crystalline material that enables the conditions specified by the F |
| 7008805 |
Optical device and method of manufacture thereof |
March 7, 2006 |
| The present invention provides an optical device and a method of manufacture thereof. In one embodiment, the method of manufacturing the optical device may include isolating an end of a first layer from a cladding layer located over a mesa structure that has been formed from a substr |
| 6990256 |
Segmented modulator for high-speed opto-electronics |
January 24, 2006 |
| An optical modulator includes first and second modulator segments. The first and second modulator segments form an optical signal path for an optical signal. The optical modulator also includes an electrical signal path capable of receiving and carrying a modulation signal, which is |
| 6956232 |
Electroabsorption modulator |
October 18, 2005 |
| A semiconductor modulator is disclosed which exhibits a negative alpha parameter at low operating bias. The device includes at least two barrier layers with a quantum well layer therebetween. An additional layer is formed adjacent to the quantum well layer, the additional layer having a |
| 6941080 |
Method and apparatus for directly modulating a laser diode using multi-stage driver circuitry |
September 6, 2005 |
| An optical transmitter includes a laser driver capable of receiving data and applying the data to drive a laser diode over a transmission line having first and second ends. The first end of the transmission line is coupled to an output of the laser driver. A first terminal of an amplifie |
| 6920168 |
Optical assembly |
July 19, 2005 |
| The invention, in accordance with one aspect, is an optical assembly including a substrate, a light emitting device mounted over a major surface of the substrate and having a back face, at least one channel formed in the substrate near the back face of the light emitting device, and |
| 6906846 |
Micro-electro-mechanical system device and method of making same |
June 14, 2005 |
| A MEMS device and a method for making a MEMS device are described. The MEMS device includes a support member, an optical device, and a flexible member. In one aspect, the flexible member is formed separately from the support member and the optical device. In one aspect, the flexible memb |
| 6895134 |
Integrated optoelectronics devices |
May 17, 2005 |
| The invention is an optoelectronic device and method of fabrication where at least two optical devices are formed on a single semiconductor substrate, with each optical device including an active region such as a multi-quantum well region. The active devices are spatially separated and |
| 6864987 |
Interferometer having improved modulation depth and free-spectral range and method of manufactur |
March 8, 2005 |
| The present invention provides an interferometer. In one embodiment, the interferometer includes a translucent body having a first portion and a second portion, where the second portion has at least three internal reflective sides. The interferometer also includes an interface between |
| 6862394 |
Wavelength tunable laser and method of formation |
March 1, 2005 |
| A method of increasing the monomolecular recombination and the immunity to noise of a continuously tunable laser is disclosed. A concentration of recombination centers in the range of about 1.times.10.sup.16 cm.sup.-3 to about 1.times.10.sup.18 cm.sup.-3 in the tuning region of the laser |
| 6862378 |
Silicon-based high speed optical wiring board |
March 1, 2005 |
| An optical wire board which utilizes a silicon substrate as the base for both the optical subassembly and the electrical RF transmitting circuit. An optical fiber is preferably passively aligned to the active optical device mounted on the optical subassembly using a V-groove etched into |
| 6856734 |
Waveguide structure using polymer material and method |
February 15, 2005 |
| Disclosed is the use of a polymer material in an optical waveguide structure. The polymer material may be used in either the cladding or the core material of an optical waveguide. The use of polymer material as such is advantageous in that the index of refraction of polymer material vari |
| 6839517 |
Apparatus and method for transmitting optical signals through a single fiber optical network |
January 4, 2005 |
| An apparatus for wavelength multiplexing optical signals, wherein the apparatus includes at least one optically conductive sleeve, at least one collimating lens positioned to receive a optical signal from the at least one sleeve, and at least one dichroic splitter positioned to receive t |
| 6839364 |
Feedback control loop operating system for tunable source |
January 4, 2005 |
| Multiple operational parameters for a laser device are simultaneously controlled, optimized and/or stabilized by a software-based system with nested and interactive feedback control loops. Start-up mode, channel lock mode and channel change mode operations are described. The invention ma |
| 6829262 |
Aging in tunable semiconductor lasers |
December 7, 2004 |
| A process evaluates an aging property of a distributed Bragg reflector (DBR) laser. The process includes illuminating a Bragg grating of the distributed Bragg reflector (DBR) laser with light while the DBR laser is both supplied a tuning current and not lasing. The process also includes |
| 6828592 |
Optoelectronic device and method of manufacture thereof |
December 7, 2004 |
| The present invention provides an optoelectronic device and a method of manufacture thereof. In one embodiment, the method of manufacturing the optoelectronic device may include creating a multilayered optical substrate and then forming a self aligned dual mask over the multilayered |
| 6819695 |
Dopant diffusion barrier layer for use in III-V structures |
November 16, 2004 |
| A multi-layer dopant diffusion barrier is disclosed that effectively prevents dopant diffusion but does not contribute to parasitic pn junctions or parasitic capacitance. A multi-layer dopant diffusion barrier layer prevents dopant diffusion. |
| 6814376 |
Method and system for generating short pulse signals |
November 9, 2004 |
| A short pulse generation system and method of generating a short pulse signal are provided. The system includes a fiber chain having an input for receiving an optical signal having a plurality of optical pulses. The fiber chain is nonlinear with respect to the optical signal and includes |
| 6808322 |
Devices and method of mounting |
October 26, 2004 |
| A device, such as an optoelectronic device, including a submount and a cover, and a method of manufacture of such a device. The submount includes a substrate with a groove formed in the substrate. The substrate further includes at least one cavity formed in the substrate displaced from b |
| 6788447 |
Off-chip matching circuit for electroabsorption optical modulator |
September 7, 2004 |
| An impedance matching circuit for an electroabsorption optical modulator addresses the conflicting concerns of being located electrically "near" the modulator, while being disposed on a separate piece part, by using an inductor as a low frequency impedance matching component, the inducto |
| 6782170 |
Optical device having a reference mark system |
August 24, 2004 |
| An optical device, a method of manufacture thereof, and a system for manufacturing the optical device. The optical device, in an exemplary embodiment, includes an optical component and a reference mark system located on an outer surface of the optical component. The reference mark sy |
| 6780241 |
Monolithic optical device manufacturing and integration methods |
August 24, 2004 |
| The present invention provides methods of manufacturing and integrating optical devices. In one embodiment, a method of integrating an optical device may include forming a first device over a substrate, and forming a second device over the substrate and adjacent the first device with a |
| 6778309 |
Electroabsorption modulator with tunable chirp |
August 17, 2004 |
| An electroabsorption modulator comprises a tandem arrangement of a conventional electroabsorption (EA) modulator element and a phase modulator element. The EA modulator element is driven by the digital data signal and the phase modulator is driven by a chirp tuning control signal, su |
| 6771869 |
Optoelectronic device having a barrier layer associated therewith and a method of manufacture th |
August 3, 2004 |
| The present invention provides an optoelectronic device, a method of manufacture thereof, and an optical communication system including the same. The optoelectronic device may include, in one particular embodiment, an active device located over a substrate and a passive device located |
| 6770224 |
Optical component package |
August 3, 2004 |
| A process for forming a polyphenylene sulfide (PPS) component is disclosed. The PPS is molded at a temperature of about 110.degree. C. to about 150.degree. C. After molding, the PPS has a morphology that is at least fifty percent polycrystalline. The component is then annealed to further |
| 6744796 |
Passivated optical device and method of forming the same |
June 1, 2004 |
| A semiconductor optical device structure includes passivated facets formed by first removing the native oxide contaminant with a "non-reactive" molecular gas etchant, such as XeF.sub.2. As the oxide is removed, a passivation flux is introduced into the vacuum chamber so as to begin the |
| 6733587 |
Process for fabricating an article comprising a magneto-optic garnet material |
May 11, 2004 |
| Improvements in the production of high-performance latching magneto-optic garnet materials are provided. It has been recognized that high-Europium magneto-optic garnets will offer superior properties in devices such as isolators, circulators and interleavers. However, formation of, e.g., |
| 6718086 |
Article comprising a tunable filter |
April 6, 2004 |
| An article comprising a tunable filter includes an optical cavity, a tuning device and a filter-disabling device. The tuning device is operable to change the center transmission wavelength of the tunable filter. The filter-disabling device is operable to temporarily disrupt the finesse o |
| 6707552 |
High precision laser bar test fixture |
March 16, 2004 |
| A test fixture for testing circuit components includes at least one test bar, at least one tray, a test pedestal, a transportable test stage, a pickup collet, a first camera, and a second camera. Each test bar contains at least one circuit component. Each tray contains at least one test |
| 6706542 |
Application of InAIAs double-layer to block dopant out-diffusion in III-V device Fabrication |
March 16, 2004 |
| The present invention relates to a multi-layer dopant barrier and its method of fabrication for use in semiconductor structures. In an illustrative embodiment, the multi-layer dopant barrier is disposed between a first doped layer and a second doped layer. The multi-layer dopant barr |
| 6704472 |
Optoelectronic device having an integrated capacitor formed thereon and method of manufacturing |
March 9, 2004 |
| The present invention provides an optoelectronic device, a method of manufacture thereof and an integrated optoelectronic system incorporating the same. The optoelectronic device may be a tunable laser that includes a capacitor located over one of the first outer surface or the second ou |
| 6702476 |
Optical fiber device having attachment to optical device package |
March 9, 2004 |
| A fiber optic device and a method of assembling the fiber optic device to provide at least four degrees of adjustment for an optical beam transported between an optical fiber and bulk optics in an optical device package. At an opening in the wall of the optical processor package, a w |
| 6700708 |
Micro-lens array and method of making micro-lens array |
March 2, 2004 |
| A micro-lens array and a method for making are described. The micro-lens array includes a base element and a plurality of lenses formed of an epoxy and including nanoparticles. The micro-lens array is formed from a master micro-lens array, which is placed within a replica micro-lens maki |
| 6697544 |
Tunable thermo-optic device and method for using |
February 24, 2004 |
| A thermo-optic device and a method for using it are described. The device has a substrate including a pair of waveguides coupled at first and second coupling regions. At the first coupling region, an input signal is split between the two waveguides. Between the coupling regions on one of |
| 6690689 |
Apparatus and method for compensating for age induced wavelength drift in tunable semiconductor |
February 10, 2004 |
| The present invention provides a method and apparatus for compensating for the age induced wavelength drift in a tunable DBR. In practice, the tuning characteristic (i.e. output wavelength versus tuning current) of a tunable DBR may be characterized before and after factory aging, typica |
| 6678301 |
Apparatus and method for minimizing wavelength chirp of laser devices |
January 13, 2004 |
| An improved semiconductor laser (distributed feedback or Bragg reflector laser) is disclosed, having reducing wavelength chirping. In a laser having a substrate, an optical waveguide layer disposed on the substrate with a grating region, and a cladding region disposed on the optical |
| 6677830 |
Broadband matching network for an electroabsorption optical modulator |
January 13, 2004 |
| A broadband impedance matching circuit for use with an optical device such as an electroabsorption optical modulator comprises a microstrip transmission line, including pairs of like-sized open stubs disposed on opposite sides of the transmission line along its length. The number of |
| 6664605 |
Dopant diffusion blocking for optoelectronic devices using InAlAs and/or InGaAlAs |
December 16, 2003 |
| A method for decreasing the diffusion of dopant atoms in the active region, as well as the interdiffuision of different types of dopant atoms among adjacent doped regions, of optoelectronic devices is disclosed. The method of the present invention employs a plurality of InAlAs and/or InG |
| 6657272 |
Off-axis silicon substrate for optimized optical coupling |
December 2, 2003 |
| An optical receiver having a silicon substrate with a top surface cleaved from a [100] silicon crystallographic plane and a reflector, and a photodetector coupled to the top surface of the silicon substrate, the photodetector being adapted to receive an incoming signal from a fiber. |
| 6650456 |
Ultra-high frequency interconnection using micromachined substrates |
November 18, 2003 |
| The present invention provides a device, a method of making the device, and a system incorporating the same. In one embodiment, the device includes a substrate that has first and second opposing surfaces and first and second thicknesses, wherein the second thickness is less than the firs |
| 6646745 |
Method and apparatus for locking the transmission wavelength in optical communication laser pack |
November 11, 2003 |
| The present invention is directed toward a monitoring and control system for an optical system. In one aspect of the present invention the system may include an interferometer that splits an input beam into a transmitted portion and a reflected portion. The interferometer introduces a pa |
