Stone et al., 1999 - Google Patents
Absolute interferometry with a 670-nm external cavity diode laserStone et al., 1999
View PDF- Document ID
- 7410854540956526331
- Author
- Stone J
- Stejskal A
- Howard L
- Publication year
- Publication venue
- Applied optics
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Snippet
In the past few years there has been much interest in use of tunable diode lasers for absolute interferometry. Here we report on use of an external cavity diode laser operating in the visible (λ∼ 670 nm) for absolute distance measurements. Under laboratory conditions …
- 238000005305 interferometry 0 title abstract description 30
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- G01B9/00—Instruments as specified in the subgroups and characterised by the use of optical measuring means
- G01B9/02—Interferometers for determining dimensional properties of, or relations between, measurement objects
- G01B9/02055—Interferometers for determining dimensional properties of, or relations between, measurement objects characterised by error reduction techniques
- G01B9/02062—Active error reduction, i.e. varying with time
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- G01B9/00—Instruments as specified in the subgroups and characterised by the use of optical measuring means
- G01B9/02—Interferometers for determining dimensional properties of, or relations between, measurement objects
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- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
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- G01B9/00—Instruments as specified in the subgroups and characterised by the use of optical measuring means
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- G01B9/0207—Error reduction by correction of the measurement signal based on independently determined error sources, e.g. using a reference interferometer
- G01B9/02072—Error reduction by correction of the measurement signal based on independently determined error sources, e.g. using a reference interferometer by calibration or testing of interferometer
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- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light
- G01D5/266—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light by interferometric means
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- G01B9/00—Instruments as specified in the subgroups and characterised by the use of optical measuring means
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- G01B9/02015—Interferometers for determining dimensional properties of, or relations between, measurement objects characterised by a particular beam path configuration
- G01B9/02017—Interferometers for determining dimensional properties of, or relations between, measurement objects characterised by a particular beam path configuration contacting one object several times
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- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/04—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by beating two waves of a same source but of different frequency and measuring the phase shift of the lower frequency obtained
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- G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
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- G01J11/00—Measuring the characteristics of individual optical pulses or of optical pulse trains
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
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- G—PHYSICS
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