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What is OTDR Blind Area?
Aug 26 , 2021
Why does the blind area come up? The OTDR produces a blind area because the OTDR's detector is temporarily "blinded" by the high intensity Fresnel reflection light (mainly caused by the air gap between the OTDR connections). When the high intensity reflection is produced, the power of the photodiode is more than 4000 times higher than the backscatter power. Thus, the reflected light signal receive...
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Do you know what kinds of optical fiber connectors there are?
Sep 10 , 2021
In the field of optical fiber, optical fiber interface (also known as optical fiber connector) is a common product, which is a detachable device between optical fiber and optical fiber, and connects the two ends of optical fiber. It is not only connected to the optical fiber, but also can be repeatedly plugged and unplugged, so it has also become a movable connector of the optical fiber. With the ...
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What can 5G bring to you in the optical communication 700MHz technology industry seminar?
Sep 26 , 2021
Background introduction. China Radio and Television Zeng Qingjun said that 5G NR broadcasting does not change the existing network transmission system, and uses the existing NR channel to enable all 5G terminals to receive 5G digital television, without worrying about traffic and network congestion. What is the 700MHz Technology Industry Application Seminar? With the continuous acceleration of 5G ...
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What are reflective and non-reflective events in otdr?
Jan 21 , 2022
1. The height of each point in the OTDR curve represents the backscattered light intensity at that location. When looking at the OTDR curve, you can see that the reflected signal is raised in some places, as if the optical power at the back is stronger than the front, which is impossible. Generally, this situation is the backscattering peak caused by the Fresnel reflection at the splicing, breakin...
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The knowledge and use of OTDR launch cable
Mar 04 , 2022
1. Knowledge of OTDR extension cable The OTDR extension cable is similar to the optical fiber jumper. There is no fusion point in the middle of the optical fiber. During the optical fiber test, the OTDR extension cable is the insertion loss and reflectivity of the near-end connection and the far-end connection of the optical fiber line when using the OTDR measurement. It is mainly used to make up ...
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Working principle of Optical Fiber Fusion splicer.
Apr 12 , 2022
Optical fiber fusion splicer can be said to be an indispensable tool product in the field of communication engineering. for people who have had experience in communication engineering, they must know the operation of the fusion splicer like the back of their hand, but it is such a fiber fusion splicer. do you know how he works? Today we will introduce, if you understand, it may be helpful to the l...
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How to reduce the fusion splicing loss?
Apr 28 , 2022
The size of the loss is a very important technical indicator of the optical fiber fusion splicer. The lower the loss, the higher the precision of the machine, which can support longer distance fusion splicing. The more perfect the fusion point, the longer the service life. 1. The fiber cleaver cutting angle of the fiber is very important. At present, most of the optical fiber fusion splicers are f...
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The use of Seikofire fiber fusion splicer GPS function
May 13 , 2022
The use of Seikofire fiber fusion splicer GPS function. 1 download and install "Aika Life" APP on the mobile terminal. 2 Open the "Aika Life" APP, enter the ID address of GPS, enter the original password 123456, and click "Log in" 3 Click "Real-time tracking" to view the location of the device, the location of the mobile terminal and the device to. The straight line of the mobile phone terminal. 4...
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OTDR test with light
May 24 , 2022
What is OTDR test with light? When testing with the wavelengths of 1310nm, 1490nm and 1550nm of common OTDR, it is necessary to require that there is no communication optical signal in the line under test. Forcing the test with light will burn out the internal detector of the OTDR. With light test, the OTDR can still complete the test without interrupting the signal light in the line during the te...
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What is the difference between the six motors and four motors of the fusion splicer?
Jun 07 , 2022
Maybe many friends' cognition of splicing machines and motors only exists in the more the better. This is true, but too general. Today we will talk about why six-motor splicing machine have lower losses and better performance. 1. Four motor fusion splicer, with two propulsion motors and two core-adjusting motors. The six-motor splicing machine also has two focus motors. The most intuitive view is ...
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The introduction to OTDR begins with the cognitive curve
Aug 16 , 2022
OTDR is one of the most commonly used fiber optic measurement instruments and is widely used in the measurement, construction, maintenance and acceptance work of fiber optic cable projects. Although OTDR is widely used and is a common instrument for many installation and maintenance teams and engineering teams, but due to the OTDR curve expression is not intuitive enough, there are still many prac...
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Repair of the obstacle of the optical cable
Dec 01 , 2022
In the event of an obstacle in the optical cable line, every second must be used to temporarily adjust the circuit or deploy an emergency optical cable to temporarily rush to open the circuit, and forces should be organized as soon as possible to repair it. 1. Emergency repair 1) All optical cable lines in a certain direction are blocked Immediately and temporarily adjust all circuits or some main...
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What is dynamic range of OTDR
Dec 15 , 2022
The dynamic range of an OTDR determines how long of a fiber can be measured. It is listed as a dB value — larger values generally mean longer distance measurement capability. A test pulse needs to be strong enough to get to the end of the fiber to be tested, and the sensor has to be good enough to measure the weakest backscatter signals which come from the end of a long fiber. The combination of t...
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Demystifying the OTDR Blind Zone: Challenges in Ensuring Fiber Optic Measurement Accuracy
Aug 31 , 2023
Introduction: Optical Time Domain Reflectometer (OTDR) is a widely used testing instrument in the field of fiber optic communications for evaluating transmission performance and locating faults. However, like any measurement technique, OTDR has its limitations, and one prominent issue is the "blind zone," which poses certain challenges to the accuracy and reliability of measurements. To better und...
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Understanding the Operating Principles of OTDR (Optical Time Domain Reflectometer)
Oct 27 , 2023
The Optical Time Domain Reflectometer (OTDR) is a powerful instrument widely used in the field of fiber optics for characterizing and testing optical fibers. OTDRs provide valuable insights into the physical properties of fiber, such as attenuation, splice loss, and fiber length. In this article, we will delve into the operating principles of OTDR and gain a better understanding of how this instru...
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New S280 Mini OTDR: A Revolutionary Fiber Optic Testing Solution
Nov 08 , 2023
Introduction: In the ever-advancing world of fiber optics, SeikoFire is proud to present its latest innovation, the Mini OTDR. Designed to meet the growing demands of the industry, this compact and versatile device offers exceptional performance and convenience in fiber optic testing. In this article, we will explore the features and benefits of the Mini OTDR and how it can revolutionize fiber opt...
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