skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Integrated optics reflectometer

Patent ·
OSTI ID:1341892
; ; ;

An apparatus includes a laser source configured to output laser light at a target frequency, and a measurement unit configured to measure a deviation between an actual frequency outputted by the laser source at a current period of time and the target frequency of the laser source. The apparatus includes a feedback control unit configured to, based on the measured deviation between the actual and target frequencies, control the laser source to maintain a constant frequency of laser output from the laser source so that the frequency of laser light transmitted from the laser source is adjusted to the target frequency. The feedback control unit can control the laser source to maintain a linear rate of change in the frequency of its laser light output, and compensate for characteristics of the measurement unit utilized for frequency measurement. A method is provided for performing the feedback control of the laser source.

Research Organization:
AxonOptics LLC, Harrisonburg, VA (United States)
Sponsoring Organization:
USDOE
Assignee:
AxonOptics LLC (Harrisonburg, VA)
Patent Number(s):
9,557,243
Application Number:
14/944,315
OSTI ID:
1341892
Resource Relation:
Patent File Date: 2015 Nov 18
Country of Publication:
United States
Language:
English

References (21)

High resolution interferometric optical frequency domain reflectometry (OFDR) beyond the laser coherence length patent April 2009
Large Electrocaloric Effect in Ferroelectric Polymers Near Room Temperature journal August 2008
Procedure and means for configuring a measuring device patent December 2002
Optical frequency domain reflectometer for use as an optical fiber testing device patent December 1998
Programmable frequency reference for laser frequency stabilization, and arbitrary optical clock generator, using persistent spectral hole burning patent February 2003
Thermoelectric refrigeration material and method of making the same patent March 1994
External cavity wavelength tunable laser device and optical output module patent March 2012
Optical reflectometry and optical reflectometer patent April 2012
Optical return loss detecting device patent June 2007
Spectrometer for identifying analyte materials patent January 2013
Fluorometer detection system patent June 1994
Laser frequency stabilizer using transient spectral hole burning patent November 2003
Optical frequency domain reflectometry with a narrow linewidth fiber laser journal July 2000
Optical laser control for optical communications systems patent September 2010
Locking of a laser to an optical interferometer that is stabilized to a reference frequency patent December 2012
Electrocaloric Materials for Solid-State Refrigeration journal May 2009
Compensating for time varying phase changes in interferometric measurements patent August 2011
Method of tuning integrated laser sources with integrated wavelength tuning elements on the same substrate or in a monolithic photonic integrated circuit (PIC) patent August 2006
Optical amplifier provided with control function of pumping light, and optical transmission system using the same patent November 2011
Frequency locking of tunable lasers by using a birefringent optical cavity patent December 2003
Carrier control loop for a receiver of digitally transmitted signals patent April 2001

Similar Records

Achromatic self-referencing interferometer
Patent · Sat Jan 01 00:00:00 EST 1994 · OSTI ID:1341892
Achromatic self-referencing interferometer
Patent · Tue Apr 19 00:00:00 EDT 1994 · OSTI ID:1341892
Accuracy Analysis of a Robotic Radionuclide Inspection and Mapping System for Surface Contamination
Conference · Tue Jan 15 00:00:00 EST 2008 · OSTI ID:1341892

Related Subjects

47 OTHER INSTRUMENTATION