Infinera Corporation

Hewlett-packard Company

Agilent Technologies, Inc.

Lumileds Lighting U.s., LLC

Other

Avago Technologies General IP (singapore) Pte. Ltd.

Richard P Schneider

Fred A Kish, Jr

Charles H Joyner

Radhakrishnan L Nagarajan

David F Welch

Mark Missey

Atul Mathur

Vincent G Dominic

Frank H Peters

Stephen G Grubb

Alan C Nilsson

Robert B Taylor

Matthew L Mitchell

Frank Peters

Jonas Webjorn

Ting-Kuang Chiang

Drew Daniel Perkins

Scott W Corzine

Marco Sosa

Andrew G Dentai

Sheila K Mathis

Sheila K Hurtt

Shih-Yuan Wang

Yong Qin Chen

Dubravko I Babic

Masaki Kato

Michael R Tan

Mehrdad Ziari

Ghulam Hasnain

Brian Elliot Lemoff

Damien Lambert

Randal A Salvatore

Damien Jean Henri Lambert

Nathan Fredrick Gardner

Tetsuya Takeuchi

Long Yang

Werner K Goetz

Stephen Andrew Stockman

R Scott Kern

Danny E Mars

Mark R Hueschen

Changhua Chen

Christopher P Kocot

Anneli Munkholm

Donald J Pavinski

Laura M Giovane

An-Nien Cheng

Hao-chung Kuo

Fred A Kish

Robert Grencavich

Andrew Y Kim

Vinh D Nguyen

Donald J Pavinski, Jr

Richard Scott Kern

Vincent D Dominic

Shih-Yun Wang

Mark J Missey

Marco E Sosa

A semiconductor monolithic transmitter photonic integrated circuit (TxPIC) comprises two different situations, either at least one signal channel in the PIC having a modulated source with the channel also extended to include at least one additional element or a plurality of modulated sources comprising N signal channels in the PIC of different transmission wavelengths, where N is equal to or greater than two (2), which may also approximate emission wavelengths along a standardized wavelength grid. In these two different situations, a common active region for such modulated sources and additional channel elements is identified as an extended identical active layer (EIAL), as it extends from a single modulated source to such additional channel elements in the same channel and/or extends to additional modulated sources in separate channels where the number of such channels is N equal to two or greater. The emission wavelength of laser sources in the modulated sources have different positively detuned offsets of the laser emission wavelength relative to the laser active region wavelength, i.e., (&#x3bb;&#x2212;&#x3bb;&#x3e;0), and their emission wavelengths form a wavelength grid which may substantially conform to a standardized wavelength grid, such as the ITU grid. These laser sources in the modulated sources with an EIAL are preferentially detuned in the range, for example, of about 20 nm to about 70 nm, preferentially from about 25 nm to about 50 nm, from the active region wavelength of the modulated sources.

Monolithic photonic integrated circuit (PIC) with a plurality of integrated arrays of laser sources and modulators employing an extended identical active layer (EIAL)

A method provides acceptable performance from a semiconductor transmitter photonic integrated circuit (TxPIC) that contains a plurality of modulated sources each comprising a laser source and an external modulator where each laser source provides a different emission wavelength and each modulated source forms a separate signal channel, comprising the steps of providing at least some of the signal channels with an extended identical active layer (EIAL) so that the modulated sources each have an identical active region wavelength and detuning the laser emission wavelength in each laser source within the EIAL from the laser active region wavelength.

Method of achieving acceptable performance in and fabrication of a monolithic photonic integrated circuit (PIC) with integrated arrays of laser sources and modulators employing an extended identical active layer (EIAL)

A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.

Transmitter photonic integrated circuit (TxPIC) chip

Transmitter photonic integrated circuit (TxPIC) chips

Method and apparatus for utilizing a probe card for testing in-wafer photonic integrated circuits (PICs) comprising a plurality of in-wafer photonic integrated circuit (PIC) die formed in the surface of a semiconductor wafer where each PIC comprises one or more electro-optic components with formed wafer-surface electrical contacts. The probe card has a probe card body with at least one row of downwardly dependent, electrically conductive contact probes. The probe body is transversely translated over the surface of the wafer to a selected in-wafer photonic integrated circuit (PIC) die. Then, the contact probes of the probe card are brought into engagement with surface electrical contacts of the selected photonic integrated circuit (PIC) die for testing the operation of electro-optic components in the selected in-wafer photonic integrated circuit (PIC) die.

Probe card for testing in-wafer photonic integrated circuits (PICs) and method of use

Monolithic transmitter photonic integrated circuit (TXPIC) with a transversely disposed output

Monolithic transmitter photonic integrated circuit (TxPIC) with a traversely disposed output

Optical transport network having a plurality of monolithic photonic integrated circuit semiconductor chips

Photonic integrated circuit (PIC) chips

Transmitter photonic integrated circuits (TXPICS) with directly modulated lasers and wavelength selective combiners

A method of calibrating a monolithic transmitter photonic integrated circuit (TxPIC) chip is disclosed where the chip contains integrated arrays of laser sources and electro-optic modulators forming a plurality of different wavelength signal channels where each laser source on the chip is sequentially selected and tested for the output power and operational wavelength. Calibration data is initially determined by checking an amount of output power of each laser output and any offset of each laser operational wavelength from a desired predetermined value. Then, adjustment of the operational wavelength of each laser source is accomplished to substantially match the desired predetermined value. The laser source output power and operational wavelength may then be rechecked to determine if there is any remaining offset of each laser operational wavelength from the desired predetermined value. If so, the laser source output power can be readjusted to a desired amount and its operational wavelength can be readjusted to the desired predetermined wavelength value. The final calibration data it then stored for future reference as a benchmark in later adjustment of laser source output power and operational wavelength for each laser source on the tested chip when the chip has been installed in the field.

Method of calibrating a monolithic transmitter photonic integrated circuit (TXPIC) chip

Monolithic transmitter photonic integrated circuit (TxPIC) semiconductor chip

A monolithic photonic integrated circuit (PIC) chip where the active waveguide cores of the modulated sources of the PIC are multiple quantum wells (MQWs) and the passive waveguide cores of an optical combiner are a bulk layer or material. The cores of the waveguide cores may be a quaternary such as InGaAsP or InAlGaAs.

Method of manufacturing and apparatus for a transmitter photonic integrated circuit (TXPIC) chip

Monolithic transmitter photonic integrated circuit (TxPIC) with integrated optical components in circuit signal channels

Transmitter photonic integrated circuits (TxPIC) and optical transport networks employing TxPICs

Growing community of inventors

Mountain View, CA, United States of America

Richard P Schneider