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Title: On-chip spectroscopic sensors with optical fringe suppression

Patent ·
OSTI ID:1632632
; ; ;

An on-chip spectroscopic sensor includes a tunable diode laser. A laser driver for drives the tunable diode laser. An analyte test cavity receives a chemical sample and exposes the received chemical sample to light from the tunable diode laser. An optical detector detects light emerging from the analyte test cavity as a result of the laser exposure. A spectral analyzer determines a spectrum of the emerging light, matches and removes one or more known optical fringe patterns from the determined spectrum, and determines a composition or concentration of the chemical sample from the optical fringe pattern-removed spectrum.

Research Organization:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000540
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Number(s):
10,578,547
Application Number:
15/914,455
OSTI ID:
1632632
Resource Relation:
Patent File Date: 03/07/2018
Country of Publication:
United States
Language:
English

References (8)

Fiber-pigtailed silicon photonic sensors for methane leak detection conference January 2017
Monitoring, Detecting and Quantifying Chemical Compounds in a Sample patent-application March 2012
Spectroscopic sensor and angle limiting filter patent October 2015
Method and Apparatus for Determining Properties of Fuels patent-application August 2010
Spectrometer Chip for Analyzing Fluid Sample and Method of Manufacturing the Same patent-application July 2016
Miniaturized spectrometer using optical waveguide and integrated Raman system on-chip patent April 2008
Apparatus and Methods for Estimating a Downhole Property patent-application June 2010
Spectroscopic sensor device and electronic equipment patent March 2019

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