Patents Assigned to GigOptix, Inc.
-
Patent number: 9184498Abstract: A method includes implementing a coupled Voltage Controlled Oscillator (VCO) array with a number of VCOs, and arranging a number of switched capacitor elements in a geometric proportion in a tank circuit of each VCO to provide for finesse in control of a tunable frequency of the tank circuit. The method also includes utilizing a voltage control input of a varactor element of the tank circuit solely for achieving phase separation between the each VCO and another VCO of the coupled VCO array based on the provision of finesse in the control of the tunable frequency of the tank circuit, and mixing Local Oscillator (LO) signals generated through the number of VCOs of the coupled VCO array with signals from antenna elements of an antenna array to introduce differential phase shifts in signal paths coupled to the antenna elements during performing beamforming with the antenna array.Type: GrantFiled: March 17, 2014Date of Patent: November 10, 2015Assignee: GIGOPTIX, INC.Inventor: Christopher T. Schiller
-
Patent number: 8860481Abstract: A method includes providing an active circuit element in a feedback path between an output node and a bypass node of a charge pump of a Phase Locked Loop (PLL). The bypass node is a node to which a charge current or a discharge current is steered to by the charge pump when neither charging the output node nor discharging the output node is required. The method also includes servoing the bypass node to the output node through the active circuit element in the feedback path to maintain a same voltage at the output node and the bypass node when neither the charging of the output node nor the discharging of the output node is required.Type: GrantFiled: May 30, 2013Date of Patent: October 14, 2014Assignee: GigOptix, Inc.Inventor: Jeff Illgner
-
Publication number: 20140302250Abstract: According to an embodiment, an electro-optic polymer comprises a host polymer and a guest nonlinear optical chromophore having the structure D-?-A, wherein: D is a donor, ? is a ?-bridge, and A is an acceptor; a bulky substituent group is covalently attached to at least one of D, ?, or A; and the bulky substituent group has at least one non-covalent interaction with part of the host polymer that impedes chromophore depoling.Type: ApplicationFiled: December 3, 2013Publication date: October 9, 2014Applicant: GIGOPTIX, INC.Inventors: BAOQUAN CHEN, DANLIANG JIN, GUOMIN YU, HUI CHEN, DIYUN HUANG
-
Publication number: 20140270618Abstract: An optical sub assembly can include a distributed feedback (DFB) tunable laser and an optical modulator. Wavelength selection and phase adjustment portions of the DFB laser, as well as an electro-optic (EO) modulator can be formed from polymer waveguides including hyperpolarizable chromophores disposed on a single substrate.Type: ApplicationFiled: March 17, 2014Publication date: September 18, 2014Applicant: GIGOPTIX, INC.Inventors: RALUCA DINU, GUOMIN YU, CAILIN WEI, GIOVANNI DELROSSO, ERIC MILLER, AVISHAY KATZ, ANDREA BETTI-BERUTTO
-
Patent number: 8618241Abstract: According to an embodiment, an electro-optic polymer comprises a host polymer and a guest nonlinear optical chromophore having the structure D-?-A, wherein: D is a donor, ? is a ?-bridge, and A is an acceptor; a bulky substituent group is covalently attached to at least one of D, ?, or A; and the bulky substituent group has at least one non-covalent interaction with part of the host polymer that impedes chromophore depoling.Type: GrantFiled: December 3, 2010Date of Patent: December 31, 2013Assignee: GigOptix, Inc.Inventors: Baoquan Chen, Danliang Jin, Guomin Yu, Hui Chen, Diyun Huang
-
Patent number: 8483524Abstract: An electro-optic polymer semiconductor integrated circuit includes one or more doped regions configured to drive one or more electrodes, and the electrodes are configured to drive a juxtaposed electro-optic core. The assembly may include a planarization layer disposed at least partially coplanar with the electrodes. The circuit may include an integrated multiplexer, driver configured to receive a signal from the multiplexer, at least one high speed electrode configured to be driven by the driver and modulate light energy passed through a hyperpolarizable poled chromophore regions disposed near the high speed electrode. The circuit may include a calibration storage circuit. The circuit may include, during fabrication, structures to provide voltage to a buried electrode and a shield to prevent damage from the poling field.Type: GrantFiled: October 7, 2008Date of Patent: July 9, 2013Assignee: GigOptix, Inc.Inventors: Bing Li, Raluca Dinu, Eric Miller, Danliang Jin, Hui Chen, Christopher A. Wiklof
-
Publication number: 20130121631Abstract: A dual polarization quadrature modulator includes an input planar lightwave circuit (PLC) configured to deliver coherent light to a polymer-on substrate device including a plurality of electro-optic (E-O) polymer optical modulation waveguides configured to each phase modulate the coherent light, and the E-O polymer optical modulation waveguides output modulated coherent light to an output PLC configured to combine waveguide pairs of phase modulated light into Mach-Zehnder interferometric signals, combine pairs of Mach-Zehnder interferometric signals into quadrature modulated signals. A polarization rotator rotates modulated light from one of the quadrature modulated signals into an orthogonal polarization. The output PLC combines the quadrature-modulated and rotated quadrature modulated light to form a dual polarization, quadrature modulated light signal. The PLCs and the polymer-on-substrate device are integrated onto a single assembly substrate.Type: ApplicationFiled: November 11, 2012Publication date: May 16, 2013Applicant: GIGOPTIX, INC.Inventors: GUOMIN YU, JONATHAN RANDEL C. MALLARI, ERIC MILLER, BAOQUAN CHEN, RALUCA DINU
-
Patent number: 8442360Abstract: A low resistivity hybrid organic-inorganic material may include a proportion of charge traps including a trap element indirectly covalently bonded to a donor or acceptor element. The trap element may include tin. The donor or acceptor element may include indium and/or antimony. Bonding includes cross-linking via oxygen bonds and via organic cross-linkers. The material may be formed as a hybrid sol-gel. The material may have optical transmission and refractive index characteristics. The material may be formed as optical cladding proximal to a non-linear optical layer, and may form a portion of a second order nonlinear optical device. The second order nonlinear optical device may include and electro-optic device including an organic chromophore-loaded modulation layer.Type: GrantFiled: November 4, 2009Date of Patent: May 14, 2013Assignee: GigOptix, Inc.Inventors: Danliang Jin, Guomin Yu, Anna Barklund, Hui Chen
-
Publication number: 20130004137Abstract: A low index of refraction hybrid optical cladding may be formed from a fluorinated sol-gel. An electro-optic device may include a poled organic chromophore-loaded modulation layer (electro-optic polymer) and at least one adjacent fluorinated hybrid sol-gel cladding layer.Type: ApplicationFiled: March 28, 2012Publication date: January 3, 2013Applicant: Gigoptix, Inc.Inventors: Danliang Jin, Guomin Yu, Hui Chen, Baoquan Chen
-
Publication number: 20120163749Abstract: An integrated circuit is configured for optical communication via an optical polymer stack located on top of the integrated circuit. The optical polymer stack may include one or more electro-optic polymer devices including an electro-optic polymer. The electro-optic polymer may include a host polymer and a second order nonlinear chromomophore, the host polymer and the chromophore both including aryl groups configured to interact with one another to provide enhanced thermal and/or temporal stability.Type: ApplicationFiled: December 8, 2010Publication date: June 28, 2012Applicant: GIGOPTIX, INC.Inventors: Diyun HUANG, Bing LI, Eric MILLER, Danliang JIN, Christopher A. WIKLOF, Guomin YU
-
Publication number: 20120157584Abstract: According to an embodiment, an electro-optic polymer comprises a host polymer and a guest nonlinear optical chromophore having the structure D-?-A, wherein: D is a donor, ? is a ?-bridge, and A is an acceptor; a bulky substituent group is covalently attached to at least one of D, ?, or A; and the bulky substituent group has at least one non-covalent interaction with part of the host polymer that impedes chromophore depoling.Type: ApplicationFiled: December 3, 2010Publication date: June 21, 2012Applicant: GIGOPTIX, INC.Inventors: BAOQUAN CHEN, DANLIANG JIN, GUOMIN YU, HUI CHEN, DIYUN HUANG
-
Patent number: 8054128Abstract: A current control mechanism for use in low power consumption circuits with limited headroom includes a differential transistor pair from whose collectors a current output is taken. The current output is a function of a reference voltage provided at bases of a reference transistor pair having emitters that are coupled to the bases of the differential pair. The reference voltage is controlled by a pair of control transistors that control current through a load. A pair of tracking transistors can be provided to track supply voltage. A single-ended topology can also be implemented.Type: GrantFiled: June 7, 2010Date of Patent: November 8, 2011Assignee: GigOptix, Inc.Inventor: Vikas Manan
-
Patent number: 8008904Abstract: A current supply circuit provides current that is substantially invariant with voltage supply and temperature changes. The current supply circuit has an input node connectable to a voltage supply and an output node operable to provide an output current. The current supply circuit includes a current source circuit coupled to a reference voltage node and configured to provide the output current at the output node, wherein a voltage at the reference voltage node controls current output of the current source circuit. The current supply circuit also includes a reference-setting circuit coupled to the reference voltage node and operable to establish a reference current level of the current source circuit, a common-emitter circuit coupled to the input node, and an emitter-follower circuit coupled to the input node, the emitter-follower circuit having an input coupled to an output of the common-emitter circuit and an output coupled to the reference voltage node.Type: GrantFiled: July 31, 2008Date of Patent: August 30, 2011Assignee: Gigoptix, Inc.Inventor: Vikas Manan
-
Publication number: 20100244956Abstract: A current control mechanism for use in low power consumption circuits with limited headroom includes a differential transistor pair from whose collectors a current output is taken. The current output is a function of a reference voltage provided at bases of a reference transistor pair having emitters that are coupled to the bases of the differential pair. The reference voltage is controlled by a pair of control transistors that control current through a load. A pair of tracking transistors can be provided to track supply voltage. A single-ended topology can also be implemented.Type: ApplicationFiled: June 7, 2010Publication date: September 30, 2010Applicant: GigOptix, Inc.Inventor: Vikas Manan
-
Patent number: 7760781Abstract: A current control mechanism for use in low power consumption circuits with limited headroom includes a differential transistor pair from whose collectors a current output is taken. The current output is a function of a reference voltage provided at bases of a reference transistor pair having emitters that are coupled to the bases of the differential pair. The reference voltage is controlled by a pair of control transistors that control current through a load. A pair of tracking transistors can be provided to track supply voltage. A single-ended topology can also be implemented.Type: GrantFiled: April 29, 2008Date of Patent: July 20, 2010Assignee: Gigoptix, Inc.Inventor: Vikas Manan
-
Patent number: 7738745Abstract: A method that includes (a) thermally biasing an electro-optic polymer device using an electrode; and (b) driving the electro-optic polymer device by applying a high frequency signal to the device using the same electrode.Type: GrantFiled: October 6, 2006Date of Patent: June 15, 2010Assignee: GigOptix, Inc.Inventors: Mary K. Koenig, Raluca Dinu
-
Publication number: 20100121016Abstract: A low index of refraction hybrid optical cladding may be formed from a fluorinated sol-gel. An electro-optic device may include a poled organic chromophore-loaded modulation layer and at least one adjacent fluorinated hybrid sol-gel clad.Type: ApplicationFiled: September 15, 2009Publication date: May 13, 2010Applicant: GIGOPTIX, INC.Inventors: Danliang Jin, Guomin Yu, Hui Chen
-
Patent number: 7713428Abstract: A process that comprises dry etching a trench into a side clad polymer layer using an underlying passive polymer layer as an etch stop, and then back filling the trench with an electro-optic polymer.Type: GrantFiled: May 24, 2007Date of Patent: May 11, 2010Assignee: GigOptix, Inc.Inventors: Bing Li, Danliang Jin, Raluca Dinu, Guomin Yu
-
Publication number: 20100111465Abstract: A low resistivity hybrid organic-inorganic material may include a proportion of charge traps including a trap element indirectly covalently bonded to a donor or acceptor element. The trap element may include tin. The donor or acceptor element may include indium and/or antimony. Bonding includes cross-linking via oxygen bonds and via organic cross-linkers. The material may be formed as a hybrid sol-gel. The material may have optical transmission and refractive index characteristics. The material may be formed as optical cladding proximal to a non-linear optical layer, and may form a portion of a second order nonlinear optical device. The second order nonlinear optical device may include and electro-optic device including an organic chromophore-loaded modulation layer.Type: ApplicationFiled: November 4, 2009Publication date: May 6, 2010Applicant: GigOptix, Inc.Inventors: Danliang Jin, Guomin Yu, Anna Barklund, Hui Chen
-
Publication number: 20100074584Abstract: A low resistivity hybrid optical cladding may be formed from a sol-gel doped with an inorganic salt such as lithium perchlorate. An electro-optic device may be formed by poling an organic chromophore-loaded modulation layer through at least one layer of the low resistivity hybrid optical cladding.Type: ApplicationFiled: September 15, 2009Publication date: March 25, 2010Applicant: GIGOPTIX, INC.Inventors: Danliang Jin, Guomin Yu, Anna Barklund, Hui Chen, Raluca Dinu