JPS5647723A - Rotation measuring method for light phase and plane of polarization - Google Patents
Rotation measuring method for light phase and plane of polarizationInfo
- Publication number
- JPS5647723A JPS5647723A JP12319379A JP12319379A JPS5647723A JP S5647723 A JPS5647723 A JP S5647723A JP 12319379 A JP12319379 A JP 12319379A JP 12319379 A JP12319379 A JP 12319379A JP S5647723 A JPS5647723 A JP S5647723A
- Authority
- JP
- Japan
- Prior art keywords
- crystal
- voltage
- sample
- modulation
- wavelength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013078 crystal Substances 0.000 abstract 8
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 abstract 1
- 229910003327 LiNbO3 Inorganic materials 0.000 abstract 1
- 229910012463 LiTaO3 Inorganic materials 0.000 abstract 1
- 230000005697 Pockels effect Effects 0.000 abstract 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J4/00—Measuring polarisation of light
- G01J4/04—Polarimeters using electric detection means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To lower applied voltage by a method wherein the half-wavelength voltage of a crystal as a sample is indirectly measured from a phase change which gives by the applied voltage of the crystal as the sample to the optical beams of modulation at 100% by the applied voltage of a crystal, which is easily modulated, except the crystal as the sample. CONSTITUTION:Laser rays from a laser light source L pass through a polarizer P, pass through a crystal M in substance, which has a great Pockels effect, such as lithium tantalate (LiTaO3) or lithium niobate (LiNbO3) or the like, and is branched by means of a beam splitter BS. Modulation at 100% is previously provided to passing light easily by applying voltage to the crystal M, whose half-wavelength voltage value is small, here, voltage, which largely differs from the applied voltage of the crystal M and has frequency which is easily discriminated, is slightly applied to a crystal S as a sample, a phase change of the light of modulation at 100% generated by application of the voltage is detected, and a half-wavelength is measured from the applied value and the quantity on the change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12319379A JPS5647723A (en) | 1979-09-27 | 1979-09-27 | Rotation measuring method for light phase and plane of polarization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12319379A JPS5647723A (en) | 1979-09-27 | 1979-09-27 | Rotation measuring method for light phase and plane of polarization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5647723A true JPS5647723A (en) | 1981-04-30 |
Family
ID=14854487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12319379A Pending JPS5647723A (en) | 1979-09-27 | 1979-09-27 | Rotation measuring method for light phase and plane of polarization |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5647723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599181A2 (en) * | 1992-11-20 | 1994-06-01 | Matsushita Electric Industrial Co., Ltd. | Voltage sensor |
-
1979
- 1979-09-27 JP JP12319379A patent/JPS5647723A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599181A2 (en) * | 1992-11-20 | 1994-06-01 | Matsushita Electric Industrial Co., Ltd. | Voltage sensor |
| EP0599181A3 (en) * | 1992-11-20 | 1995-03-08 | Matsushita Electric Ind Co Ltd | Voltage sensor. |
| US5477134A (en) * | 1992-11-20 | 1995-12-19 | Matsushita Electric Industrial Co., Ltd. | Voltage sensor for use in optical power transformer including a pair of Pockels cells |
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