Same Brand


History View Products

Clear | View all  
OEFBL Series - PM Fiber beat-Length Measuring system
View ablum

OEFBL Series - PM Fiber beat-Length Measuring system

PM Fiber beat-Length Measuring system

  • Product Code:OEFBL Series
  • Item:OEFBL Series



The property of PM fiber beat-length is the nature capability of Polarization-Maintenance , especially for working at the external force disturbance. Under the method of press in beat-length measurement, the changing of optical power responsing to the beat-length is so smaller, its beat-length is so smaller which have the better capability of Polarization -Maintenance. Meanwhile the waveform for each beat-length is in uniform, it indicates the stability of bi-birefringence for the fiber. This system is widely used in fiber coil development in the FOGs. It can assure the 3 fiber coil for 1 set system to be wound with the same beat-length PM fiber ( value=0.01mm) , which can provide the uniformity of polarization crosstalk for different fiber coil working at the different working conditions.

OElabs offers a large selection of Lasers and Laser components, please contact for more information.

Main Features:

  • Measurement resolution (max): 0.001mm, repeatability : <0.01nm, (typ: <0.005mm)
  • Measured fiber : 80/165um or 125/250um, extra bare fiber adapter is necessary for 80/165um
  • Notebook data storage and process easily
  • Built-into precise guide screw and programmable controller to support controlling the displacement,
  • Built-into advanced light source at 1310nm,timely displaying optical power changing graph with beat-length.
  • Measuring speed selectable, automatic beat-length calculation and the testing report exporting
  • Measurement data storage and read and delete per month
  • Compared to the traditional PMD measuring @633nm, the press method is to measure the actual beat -length under the changing of optical power @ 1310nm, it can get the relation between temperature and beat-length. Temperature controller can be built on request. .


Technical Specifications




Measuring range

Measuring distance




For high-precision measurement and produce processing

Display and storage the measuring data and results






For coherent-related research and measurement

Display and storage the measuring data and results, fitting analysis for some internal number






If you have any questions on this product, please ask advice!


*Consulting content:
Contact: (Can be a phone, email, qq, etc.)
*Verification code:   Not clear? change image
If you have any evaluation of the product or experience, please share!

沪ICP备13027087号-1 © 2001-2015 All Rights Reserved.  Follow us @          


Working time
9:00-18:00 Beijing time GMT-8
Close Control Panel