Infinera Corporation

Intel Corporation

Jonas Webjorn

David F Welch

Fred A Kish, Jr

Charles H Joyner

Alan C Nilsson

Robert B Taylor

Radhakrishnan L Nagarajan

Vincent G Dominic

Richard P Schneider

Mark Missey

Atul Mathur

Stephen G Grubb

Matthew L Mitchell

Drew Daniel Perkins

Jean-Marc Verdiell

Frank H Peters

Frank Peters

Robert Kohler

Marc Epitaux

Marco Sosa

Eric J Zbinden

Sylvain M Colin

Robert Grencavich

Vinh D Nguyen

Donald J Pavinski, Jr

Ting-Kuang Chiang

Marc A Finot

Donald J Pavinski

Fred A Kish

Mark Epitaux

Mark J Missey

Marco E Sosa

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.

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

Monolithic transmitter photonic integrated circuit (TxPIC) semiconductor 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

A method of tuning optical components integrated on a monolithic chip, such as an optical transmitter photonic integrated circuit (TxPIC), is disclosed where a group of first optical components are each fabricated to have an operating wavelength approximating a wavelength on a standardized or predetermined wavelength grid and are each included with a local wavelength tuning component also integrated in the chip. Each of the first optical components is wavelength tuned through their local wavelength tuning component to achieve a closer wavelength response that approximates their wavelength on the wavelength grid.

Method of tuning optical components integrated on a monolithic chip

A monolithic transmitter photonic integrated circuit (TxPIC) chip comprises an array of modulated sources formed on the PIC chip and having different operating wavelengths according to a standardized wavelength grid and providing signal outputs of different wavelengths. Pluralities of wavelength tuning elements are integrated on the chip, one associated with each of the modulated sources. An optical combiner is formed on the PIC chip and the signal outputs of the modulated sources are optically coupled to one or more inputs of the optical combiner and provided as a combined channel signal output from the combiner. The wavelength tuning elements provide for tuning the operating wavelength of the respective modulated sources to be approximate or to be chirped to the standardized wavelength grid. The wavelength tuning elements are temperature changing elements, current and voltage changing elements or bandgap changing elements.

Transmitter photonic integrated circuit (TxPIC) chip architectures and drive systems and wavelength stabilization for TxPICs

A photonic integrated circuit (PIC) chip with a plurality of electro-optic components formed on a major surface of the chip and a submount that includes a substrate that extends over the major surface of the chip forming an air gap between the substrate and the major surface, the substrate to support electrical leads for electrical connection to some of the electro-optic components on the chip major surface.

Submount for a photonic integrated circuit (PIC) chip

A package is described. In one embodiment, the package includes multiple optical elements and multiple flexures, with at least one optical element attached to each flexure. The optical elements may be in alignment with each other. In an alternative embodiment, multiple optical elements are attached to a single flexure.

Optoelectronic assembly

Optoelectronic assembly having a flexure that supports multiple optical elements

A method for aligning optical components includes positioning a flexure having an attached first optical component with respect to a substrate having a second optical component attached thereto. The flexure has at least two legs, and each leg has a foot portion. The method further includes coupling at least one leg of the two legs to the substrate at a point of contact between the foot portion of the at least one leg and the substrate. The method further includes adjusting the alignment of the optical components by spot welding a location on the leg. Spot welding on the substrate may also be used to adjust the alignment of the optical components.

Method for alignment of optical components using laser welding

A flexure and package including the same are provided. In one embodiment, the flexure is coupled to a second optical element and a substrate to maintain the second optical element in alignment with a first optical element. The flexure comprises a body, a pair of front and back legs. The attachment of the rear legs to the substrate causes the flexure to move from a first flexure position to a second flexure position, the distance between the first flexure position and the second flexure position equaling an offset distance. A specified length of the body is chosen such that the offset distance causes a second offset distance of the second optical component held by the flexure, and this second offset distance is within a specified range. The second offset distance is equal to the difference between a primary second optical component position and a secondary second optical component position.

Flexure coupled to a substrate for maintaining the optical fibers in alignment

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Redwood City, CA, United States of America

Jonas Webjorn