Mr. Jared D. Stack Profile

Jared D. Stack

Principal Optical Engineer at Broadcom Inc

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Author

Publications (17)

Proceedings Article | 13 June 2023 Presentation + Paper

Diffractive optical elements as optical calibration references for LIDAR systems

Paolo Batoni, Jared Stack, Jeff Gardner, Kevin Welch, Richard Jones, John Childers

Proceedings Volume 12540, 1254004 (2023) https://doi.org/10.1117/12.2663405

KEYWORDS: Diffractive optical elements, LIDAR, Silica, Micro optics, Calibration, Diffraction gratings, Optics manufacturing, Diffraction, Optical calibration

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SPIE Journal Paper | 14 December 2022

Diffractive optical elements for calibration of LIDAR systems: materials and fabrication

Horst Schreiber, Xavier LaFosse, Jay J. Zhang, Paolo Batoni, Jared Stack, Jeff Gardner

OE, Vol. 62, Issue 03, 031206, (December 2022) https://doi.org/10.1117/12.10.1117/1.OE.62.3.031206

KEYWORDS: Diffractive optical elements, Calibration, LIDAR, Manufacturing, Silica, Materials processing, Projection systems, Etching, Diffraction gratings, Diffraction

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The promise of fully autonomous vehicles to replace the judgment of human drivers with real-time algorithmic decision-making based on optoelectronic systems relies fundamentally on the quality of the available data. Limitations imposed by sensor-resolution, available optical power, and achievable signal-to-noise ratios have been well studied in the light detection and ranging (LIDAR) application space. Additionally, the problem of integrating multiple sources of image data as well as the need to establish and maintain the system calibration over life are critically important to system reliability and safety. These latter concerns will receive even greater attention as self-driving vehicles begin to transition toward fully autonomous operation. Because of the importance of calibration to system performance and safety, the process of validating and recalibrating the system will ideally be integrated into the LIDAR system itself with calibration occurring automatically “anywhere and at any time,” without dedicated external infrastructure. Mass-market adoption is also being driven by the systems’ size and weight, as well as reliable manufacturability and resilience to environmental stresses. Due to their extreme stability, manufacturability, and small size, diffractive optical elements (DOEs) are well suited for use as optical calibration references. Current three-dimensional (3D) mapping systems based on structured light illumination already rely on DOEs as precision pattern generators to provide 3D depth sensing in a wide array mobile devices. We examine the potential use of DOEs as calibration elements in multicamera or LIDAR systems, including appropriate choices of materials, designs, and fabrication methods to ensure reliable long-term performance under automotive use conditions. We present simulations of the impact of DOE material properties on the accuracy of the generated dot patterns and consequently on the depth accuracy and lateral distortion of the 3D image. Additionally, we present requirements for DOE manufacture using conventional semiconductor fabrication technologies optimized for creating engineered surface nanostructures capable of transforming the output of a laser or other narrow-band source into a precise reference pattern.

Proceedings Article | 4 March 2010 Paper

Advances in DOE modeling and optical performance for SMO applications

James Carriere, Jared Stack, John Childers, Kevin Welch, Marc Himel

Proceedings Volume 7640, 764025 (2010) https://doi.org/10.1117/12.846619

KEYWORDS: Diffractive optical elements, Source mask optimization, Performance modeling, Stray light, Lithography, Lithographic illumination, Manufacturing, Scanners, Ions, Speckle

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Proceedings Article | 16 March 2009 Paper

Enabling process window improvement at 45nm and 32nm with free-form DOE illumination

Tamer Coskun, Apo Sezginer, Vishnu Kamat, Michiel Kruger, Bayram Yenikaya, James Carriere, Jared Stack, Marc Himel

Proceedings Volume 7274, 72740B (2009) https://doi.org/10.1117/12.814215

KEYWORDS: Diffractive optical elements, Photomasks, Manufacturing, Nanoimprint lithography, Source mask optimization, SRAF, Lithographic illumination, Model-based design, Image processing, Lithium

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Proceedings Article | 7 March 2008 Paper

An improved process for manufacturing diffractive optical elements (DOEs) for off-axis illumination systems

Jerry Leonard, James Carriere, Jared Stack, Rich Jones, Marc Himel, John Childers, Kevin Welch

Proceedings Volume 6924, 69242O (2008) https://doi.org/10.1117/12.774666

KEYWORDS: Diffractive optical elements, Diffusers, Lithography, Lithographic illumination, Critical dimension metrology, Optics manufacturing, Semiconductors, Photomasks, Custom fabrication, Etching

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Proceedings Article | 17 January 2003 Paper

Microfabrication of controlled angle diffusers used for resolution enhancement in microlithography

Marc Himel, Menelaos Poutous, Jared Stack, Jerry Leonard

Proceedings Volume 4984, (2003) https://doi.org/10.1117/12.477845

KEYWORDS: Diffusers, Lithographic illumination, Photomasks, Photoresist materials, Calcium, Resolution enhancement technologies, Lithography, Computer aided design, Optical lithography, Binary data

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Proceedings Article | 30 July 2002 Paper

Design and fabrication of customized illumination patterns for low-k1 lithography--a diffractive approach: II. Calcium fluoride controlled-angle diffusers

Menelaos Poutous, Marc Himel, William Delaney, Jared Stack, Alan Kathman, Adam Fedor, Robert Hutchins, Jerry Leonard

Proceedings Volume 4691, (2002) https://doi.org/10.1117/12.474543

KEYWORDS: Diffusers, Calcium, Computer aided design, Photomasks, Photoresist materials, Lithography, Binary data, Scanning electron microscopy, Lithographic illumination, Holograms

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Proceedings Article | 27 April 2000 Paper

Integration of micro-optics into gigabit ethernet patchcords for enhanced performance

Eric Johnson, Jared Stack, Charles Koehler, Thomas Suleski

Proceedings Volume 3952, (2000) https://doi.org/10.1117/12.384422

KEYWORDS: Graded index fibers, Single mode fibers, Optics manufacturing, Manufacturing, Chemical elements, Collimation, Micro optics, Refractive index, Photomasks, Optical components

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Proceedings Article | 1 June 1999 Paper

Diffractive microrods for fiber optic applications

Eric Johnson, Charles Koehler, Thomas Suleski, Jared Stack, Michael Feldman

Proceedings Volume 3633, (1999) https://doi.org/10.1117/12.349325

KEYWORDS: Semiconducting wafers, Fiber optics, Microlens, Connectors, Lenses, Wafer-level optics, Optical fibers, Optical components, Silicon, Packaging

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Proceedings Article | 1 June 1999 Paper

Diffractive optics for laser welding and bonding

John Hammond, Eric Johnson, Charles Koehler, Jared Stack, Thomas Suleski, Aravinda Kar, Wen Guo

Proceedings Volume 3633, (1999) https://doi.org/10.1117/12.349328

KEYWORDS: Laser welding, Aluminum, Diffractive optical elements, Beam shaping, Beam splitters, Aerospace engineering, Laser optics, Laser processing, Laser systems engineering, Gaussian beams

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Proceedings Article | 30 April 1999 Paper

Integration of silicon bench micro-optics

Hongtao Han, Jared Stack, Jay Mathews, Charles Koehler, Eric Johnson, Alan Kathman

Proceedings Volume 3631, (1999) https://doi.org/10.1117/12.348318

KEYWORDS: Silicon, Optical fibers, Optical arrays, Micro optics, Integrated optics, Optics manufacturing, Fiber optics, Diffractive optical elements, Optical alignment, Etching

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Proceedings Article | 5 May 1998 Paper

High-density optical interconnect using polymer waveguides interfaced to a VCSEL array in molded plastic packaging

Yung-Sheng Liu, R. Wojnarowski, W. Hennessy, P. Piacente, John Rowlette, Michael Kadar-Kallen, Jared Stack, Yue Liu, Andrzej Peczalski, Ajay Nahata

Proceedings Volume 3288, (1998) https://doi.org/10.1117/12.307590

KEYWORDS: Waveguides, Polymers, Vertical cavity surface emitting lasers, Polymer multimode waveguides, Packaging, Optical interconnects, Optical alignment, Connectors, Amplifiers, Transceivers

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Proceedings Article | 20 April 1998 Paper

Microdiffractive optics for integration with single-mode fibers

Eric Johnson, Charles Koehler, Thomas Suleski, Jared Stack, Michael Feldman

Proceedings Volume 3289, (1998) https://doi.org/10.1117/12.305471

KEYWORDS: Connectors, Optical fibers, Lenses, Single mode fibers, Glasses, Optical components, Collimation, Integrated optics, Zemax, GRIN lenses

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Proceedings Article | 4 April 1997 Paper

Optoelectronic backplane interconnect technology development (POINT)

Yung-Sheng Liu, W. Hennessy, R. Wojnarowski, Julian Bristow, Yue Liu, John Rowlette, Jared Stack, James Yardley, Louay Eldada, Richard Osgood, Robert Scarmozzino, Shin Lee, Susant Patra

Proceedings Volume 3005, (1997) https://doi.org/10.1117/12.271090

KEYWORDS: Waveguides, Packaging, Polymers, Optoelectronic packaging, Vertical cavity surface emitting lasers, Optical alignment, Polymer multimode waveguides, Transmitters, Optical interconnects, Optoelectronics

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Proceedings Article | 4 April 1997 Paper

Design and fabrication of passive optical polymer waveguide components for multimode parallel optical links

Robert Scarmozzino, Richard Osgood, Louay Eldada, James Yardley, Yue Liu, Julian Bristow, Jared Stack, John Rowlette, Yung-Sheng Liu

Proceedings Volume 3005, (1997) https://doi.org/10.1117/12.271094

KEYWORDS: Waveguides, Polymer multimode waveguides, Polymers, Computer aided design, Beam propagation method, Signal attenuation, Optical interconnects, Optical fibers, Laser sources, Chlorine

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Proceedings Article | 29 March 1996 Paper

Coupling of VCSEL array into multimode polymer waveguides

John Rowlette, Michael Kallen, Warren Lewis, Jared Stack, Terrence Ward, Chip Mueller, Alan Plotts

Proceedings Volume 2691, (1996) https://doi.org/10.1117/12.236923

KEYWORDS: Vertical cavity surface emitting lasers, Waveguides, Polymer multimode waveguides, Polymers, Packaging, Mirrors, Cladding, Systems modeling, Interfaces, Tolerancing

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Proceedings Article | 30 January 1996 Paper

Polymer optical interconnect technology (POINT): optoelectronic packaging and interconnect for board and backplane applications

Y. S. Liu, R. Wojnarowski, W. Hennessy, Julian P. Bristow, Yue Liu, Andrzej Peczalski, John Rowlette, Alan Plotts, Jared Stack, James Yardley, Louay Eldada, Richard Osgood, Robert Scarmozzino, Sing Lee, Volkan Ozguz

Proceedings Volume 10284, 102840N (1996) https://doi.org/10.1117/12.229274

KEYWORDS: Polymers, Optical interconnects, Optoelectronic packaging, Optoelectronics, Packaging, Diffractive optical elements, Amplifiers, Vertical cavity surface emitting lasers, Optical alignment, Computer simulations

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Showing 5 of 17 publications

Conference Committee Involvement (1)

OPTO Southeast

18 September 2000 | Charlotte, United States

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