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Search Patents by Kartik Srinivasan

Patents listed here reflect only technologies patented from FY 2018-present. To view all of NIST's patented technologies, visit the NIST pages on the Federal Laboratory Consortium website.

Displaying 1 - 7 of 7
TPOP optical probe.

A Probe for Rapid and Flexible Evaluation of Photonic Integrated Circuits (PICs)

NIST Inventors
Kartik Srinivasan
The Tapered Polymer Optical Probe (TPOP) is a state-of-the-art light probe that collects light from very small, localized areas. It is a small loop of a thin plastic "string" that collects light from a localized area near the loop into a fiber optic for signal testing. The probe is made of a durable
Scanning electron microscopy image showing electrodes placed underneath an air clad microresonator.

Integrated Optical Phase Shifter Using Buried Electrodes

NIST Inventors
Daron Westly , Gregory Moille and Kartik Srinivasan
We demonstrate the use of a buried heater layout for thermo-optic tuning of integrated photonic devices. Our method places heater electrodes underneath the photonic device layer, rather than the traditional approaches of placing electrodes on the sides of air-clad devices or on top of fully clad
An electro-optic frequency comb is spectrally translated via nanophotonics.

Nanophotonic Spectral Translation of Electro-Optic Frequency Combs

NIST Inventors
Jordan Stone and Kartik Srinivasan
The technology consists of an apparatus and process using an electro-optic frequency comb as the pump laser, used with a nonlinear microresonator to output one or more spectrally translated frequency combs in spectroscopy.

Barcoded End Facet Printed Photonic Chip And Barcode-Guided Direct Laser Writing

NIST Inventors
Kartik Srinivasan
A barcoded end facet printed photonic chip includes: an optically transparent direct laser writing substrate including a transverse waveguide writing surface to receive a direct write laser light for off-axis direct write laser printing and a facet surface to receive the direct write laser light for
The figure shows a microfabricated optical probe with the following components: 110 - optical loop, 111 – structured region of 110, 114 – optical waveguide, 116 – first arm of optical waveguide, 120 – substrate, 122 – optical cladding layer, 124 – first single mode optical fiber, 126 – primary light, and 128 – output light.

Microfabricated Optical Probe

NIST Inventors
Vladimir Aksyuk and Kartik Srinivasan
Integrated photonics research and manufacturing requires a probe for in-line nondestructive optical testing of devices. Current optical probes require dedicated and large coupling areas in the photonic circuit, cannot provide sufficient control over the degree, location and direction of optical

Method And Process For Tantala Integrated Nonlinear Photonics

NIST Inventors
Scott Papp , David Carlson and Kartik Srinivasan
Integrated photonics that enable nonlinear optical processes are important for numerous applications, including precision metrology; microresonator frequency comb generation; optical signal generation and processing; sensing, positioning, and navigation; and generation and manipulation of quantum
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