Corning Incorporated

Corning Optical Communications LLC

Lg Innotek Co., Ltd.

Avanex Corporation

Corning Incorporated/lg Innotek Co. Ltd.

Daniel Ohen Ricketts

Dragan Pikula

Jacques Gollier

Garrett Andrew Piech

Raymond Miller Karam

Martin Hai Hu

Vikram Bhatia

Jann Paul Kaminski

James Scott Sutherland

Elvis Alberto Zambrano

David August Sniezek Loeber

Neil David Vance

Adam Joseph Fusco

Yuhui Jin

Chung-En Zah

Tian Huang

Robert Bruce Lyon

Rachel Eileen Dahlberg

Jia Liu

Scott R Dahl

Aravanan Gurusami

Ming Ying

Etienne Almoric

Christopher Mark Schweiger

Ian Armour McKay

Nobutoshi Sekiguchi

David A Loeber

Monica K Davis

Dragon Pikula

Stephen R Mixon

A liquid lens system includes a liquid lens and a heating device disposed in, on, or near the liquid lens. The liquid lens system can include a temperature sensor. The heating device can be responsive to a temperature signal generated by the temperature sensor. A camera module can include the liquid lens system. A method of operating a liquid lens includes detecting a temperature of the liquid lens and heating the liquid lens in response to the detected temperature. Various embodiments disclosed herein can reduce, impede, or prevent crosstalk between components of the liquid lens, or the effects thereof.

Liquid lens

Silica-containing substrates including vias with a narrow waist, electronic devices incorporating a silica-containing substrate, and methods of forming vias with narrow waist in silica-containing substrates are disclosed. In one embodiment, an article includes a silica-containing substrate including greater than or equal to 85 mol % silica, a first surface, a second surface opposite the first surface, and a via extending through the silica-containing substrate from the first surface toward the second surface. The via includes a first diameter at the first surface wherein the first diameter is less than or equal to 100 μm, a second diameter at the second surface wherein the first diameter is less than or equal to 100 μm, and a via waist between the first surface and the second surface. The via waist has a waist diameter that is less than the first diameter and the second diameter such that a ratio between the waist diameter and each of the first diameter and the second diameter is less than or equal to 75%.

Silica-containing substrates with vias having an axially variable sidewall taper and methods for forming the same

Control systems for liquid lenses can use feedback control using one or more measured parameters indicative of a position of the fluid interface in the liquid lens. Capacitance between a fluid and an electrode in the liquid lens can vary depending on the position of the fluid interface. Current mirrors can be used for making measurements indicative of the capacitance and/or the fluid interface position. The liquid lens can be calibrated using the measurements indicative of capacitance and/or fluid interface position as the voltage is driven across an operational range. A control system can use pulse width modulation (PWM) for driving a liquid lens, and a carrier frequency for the PWM signals can be varied to control power consumption in the liquid lens. The slew rate can be adjustable to control power consumption in the liquid lens.

Liquid lens feedback and control

Liquid lens control systems and methods

A liquid lens can be coupled to ground, such as to impede charge from building up in the liquid lens during operation thereof. For example, an electrode that is in electrical communication with a conductive fluid of the liquid lens can be coupled to ground. A switch can be used to selectively couple the liquid lens to ground, such as for discharging the liquid lens. An electrode can be selectively coupled to ground and to driving signals using a switch. In some cases, drive signals can be provided to electrodes other than the grounded electrode for driving the liquid lens. In some cases, the liquid lens can be driven using feedback control based on one or more measured parameters indicative capacitance between a fluid and one or more electrodes in the liquid lens.

Liquid lens systems

Silica-containing substrates including vias with a narrow waist, electronic devices incorporating a silica-containing substrate, and methods of forming vias with narrow waist in silica-containing substrates are disclosed. In one embodiment, an article includes a silica-containing substrate including greater than or equal to 85 mol % silica, a first surface, a second surface opposite the first surface, and a via extending through the silica-containing substrate from the first surface toward the second surface. The via includes a first diameter at the first surface wherein the first diameter is less than or equal to 100 &#x3bc;m, a second diameter at the second surface wherein the first diameter is less than or equal to 100 &#x3bc;m, and a via waist between the first surface and the second surface. The via waist has a waist diameter that is less than the first diameter and the second diameter such that a ratio between the waist diameter and each of the first diameter and the second diameter is less than or equal to 75%.

A method of making activated carbon including:

Method of making alkali activated carbon

A non-contact method of measuring an insertion loss of a DUT connector is disclosed. The DUT connector has a first ferrule with a first optical fiber and a first end face. The method utilizes a reference connector having a second ferrule with a second optical fiber and a second end face. The method includes: axially aligning the first and second ferrules so that the first and second end faces are confronting and spaced apart to define a gap with an axial gap distance d; measuring values of the insertion loss between the first and second optical fibers for different gap distances d&#x3e;0; and estimating a value for the insertion loss for a gap distance of d=0 based on the measured values of the insertion loss when d&#x3e;0.

Non-contact methods of measuring insertion loss in optical fiber connectors

A controlled-contact method of measuring an insertion loss of a compressible DUT having a first ferrule with a first optical fiber and a first end face is disclosed. The method utilizes a compressible reference connector having a second ferrule with a second optical fiber and a second end face. The method includes: axially aligning the first and second ferrules to define a gap with an axial gap distance of greater than 150 &#x3bc;m; moving the reference connector at a connector velocity in the range from 1 mm/s to 5 mm/s; when the gap distance is less than 150 &#x3bc;m, reducing the connector velocity to between 10 &#x3bc;m/s and 500 &#x3bc;m/s until contact while continuing to measure the coupled optical power; after contact, increasing the connector velocity as the reference and DUT connector axially compress. The insertion loss is determined from ongoing measurements of the coupled optical power.

Controlled-contact method of measuring insertion loss in optical fiber connectors

Start-up methods for frequency converted light sources and projector systems comprising frequency converted light sources are described herein. The start-up methods generally comprise modulating the frequency converted light source over three degrees of freedom (two spatial dimensions and one wavelength dimension). Specifically, fast oscillation of an axis of an adjustable optical component is performed simultaneously with fast oscillation of a wavelength of the semiconductor laser while a second axis of the adjustable optical component is incrementally stepped and the output intensity of the frequency converted light source is monitored for each step. This start-up method allows for three linear searches to be used to rapidly locate the appropriate control settings for the frequency converted light source.

Start-up methods for frequency converted light sources

A method for optimizing the alignment of an optical package includes directing a beam spot of a laser along a folded optical path and onto a waveguide portion of a wavelength conversion. The output intensity of the wavelength conversion device is measured as a position of an adjustable optical component is adjusted about a first scanning axis and a second scanning axis thereby traversing the beam spot along a first and second scan lines on the waveguide portion of the wavelength conversion device. The change in the output intensity of the wavelength conversion device is then determined based on the adjusted position of the adjustable optical component. The adjustable optical component is then positioned on the first scanning axis and the second scanning axis based on the determined changes in the output intensity of the wavelength conversion device such that the output intensity of the wavelength conversion device is maximized.

Methods and systems for optimizing the alignment of optical packages

Particular embodiments of the present invention relate generally to semiconductor lasers and laser projections systems and, more particularly, to schemes for controlling semiconductor lasers. According to one embodiment of the present invention, a laser having a gain section, a phase section and a wavelength selective section is configured for optical emission of encoded data. The optical emission is shifted across a plurality of laser cavity modes by applying a quasi-periodic phase shifting signal I/Vto the phase section of the semiconductor laser. The amplitude of the quasi-periodic signal transitions periodically between a maximum drive level and a minimum drive level at a frequency that varies randomly over time.

Wavelength normalization in phase section of semiconductor lasers

The present disclosure relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present disclosure, a method of operating a laser projection system is provided. According to the method, the laser projection system is utilized to display a sequence of pixelized image frames comprising an alternating sequence of relatively high intensity active projection periods Modand relatively low intensity inactive projection periods Mod. A complementary control signal transitions between an active state Qduring the relatively high intensity active projection periods Modand an inactive state Qduring the relatively low intensity inactive projection periods Mod. The transition of the complementary control signal from the inactive state Qto the active state Qis conditioned to anticipate initiation of relatively high intensity active projection periods Modsuch that it is optimized upon initiation of the relatively high intensity active projection periods Mod. Additional embodiments are disclosed and claimed.

Growing community of inventors

Corning, NY, United States of America

Daniel Ohen Ricketts