JPS53131857A - Measuring device of optical fiber cut-off wavelength - Google Patents

Measuring device of optical fiber cut-off wavelength

Info

Publication number
JPS53131857A
JPS53131857A JP4579977A JP4579977A JPS53131857A JP S53131857 A JPS53131857 A JP S53131857A JP 4579977 A JP4579977 A JP 4579977A JP 4579977 A JP4579977 A JP 4579977A JP S53131857 A JPS53131857 A JP S53131857A
Authority
JP
Japan
Prior art keywords
wavelength
optical fiber
measuring device
fiber cut
measuring
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
Application number
JP4579977A
Other languages
Japanese (ja)
Inventor
Taiji Murakami
Haruhiko Tsuchiya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4579977A priority Critical patent/JPS53131857A/en
Publication of JPS53131857A publication Critical patent/JPS53131857A/en
Pending legal-status Critical Current

Links

Landscapes

  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE: To readily obtain cut-off wavelength without requiring processing after measurement by scanning carrier wavelengths with a white light source and a spectroscope and measuring the close field image being emitted by using a microscope, vidicon, and TV monitor.
COPYRIGHT: (C)1978,JPO&Japio
JP4579977A 1977-04-22 1977-04-22 Measuring device of optical fiber cut-off wavelength Pending JPS53131857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4579977A JPS53131857A (en) 1977-04-22 1977-04-22 Measuring device of optical fiber cut-off wavelength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4579977A JPS53131857A (en) 1977-04-22 1977-04-22 Measuring device of optical fiber cut-off wavelength

Publications (1)

Publication Number Publication Date
JPS53131857A true JPS53131857A (en) 1978-11-17

Family

ID=12729310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4579977A Pending JPS53131857A (en) 1977-04-22 1977-04-22 Measuring device of optical fiber cut-off wavelength

Country Status (1)

Country Link
JP (1) JPS53131857A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61184439A (en) * 1985-02-13 1986-08-18 Hitachi Cable Ltd Method for measuring connection length of polarization surface preservation fiber
JP2012150002A (en) * 2011-01-19 2012-08-09 Nippon Telegr & Teleph Corp <Ntt> Cutoff wavelength measuring method, operation mode determination method and apparatus for the methods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61184439A (en) * 1985-02-13 1986-08-18 Hitachi Cable Ltd Method for measuring connection length of polarization surface preservation fiber
JP2012150002A (en) * 2011-01-19 2012-08-09 Nippon Telegr & Teleph Corp <Ntt> Cutoff wavelength measuring method, operation mode determination method and apparatus for the methods

Similar Documents

Publication Publication Date Title
ATE89671T1 (en) COMBINED BRIGHTFIELD-DARKFIELD RESPONSE ILLUMINATION DEVICE.
JPS55166609A (en) Method of focusing of optical system having lighting device
JPS53131857A (en) Measuring device of optical fiber cut-off wavelength
JPS53113572A (en) Dispersion characteristic measuring device of optical fiber
JPS52132851A (en) Optical detector of scanning type
JPS6443228A (en) Electronic endoscopic apparatus
JPS5454056A (en) Photoelectric detector
JPS5610201A (en) Object dimension measuring device
JPS5374084A (en) Measuring method for refractive index distribution of optical transmission path
JPS51144254A (en) Focal distance measurement method of optical lens and its device
JPS5435759A (en) Measuring method of numerical aperture of optical fibers
JPS5690227A (en) Optical fiber temperature detector
SE7904919L (en) VISUAL INSPECTION DEVICE
JPS52149140A (en) Wavelength dispersion measuring system for optical fibers
JPS5398857A (en) Measurement method and apparatus of v value of optical fiber
JPS547944A (en) Optical lens cnnector
JPS5611328A (en) Temperature measuring unit
JPS53146652A (en) Optical line structure measuring device
JPS55124008A (en) Defect inspecting apparatus
JPS54141661A (en) Assignment system of inspection area
JPS5289948A (en) Optical communication testing apparatus
JPS5296045A (en) Diameter measurement of optical fibers
JPS54104860A (en) Measuring method of optical fiber connection loss and measuring apparatus for the same
JPS5544949A (en) Measurement of refractive index distribution of cylindrical lens having refractive index gradient
JPS5611426A (en) Image monitor unit