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Optical Power Meter Introduction

Uploaded2021/1/11 3:29:26     Hits    Sourcebaudcom

Optical Power Meter Introduction



With the rapid development of optical fiber communication technology, optical fiber communication has become the main mode of transmission in various communication networks. Optical power is the most basic measurement parameter in the optiacal fiber communication system, and is one of the most important parameters to evaluate the performance of optical equipment and to evaluate the transmission quality of optical fiber.


What is Optical Power Meter?

An optical power meter (OPM) ,not only is a device used to measure the power in an optical signal, but also is a device for testing average power in optical fiber systems. High Precision Handheld Optical Power Meter is is more functional and intelligent. The power meter can be used under the situation of laboratory, LANs, WANs and CATV as well as long distance optical network. Working together with Stabilized Optical Laser Sources, the optical power meter can be used to identify optical fiber, measure optical attenuation and verify continuity an evaluate fiber link transmission quality.


Optical Power Meter introduction


How to measure optical power with optical power meter?

To turn on the network optical devices, only one optical power meter and one optical fiber connector adapter are needed to measure the power of the transmitter or receiver.

Before measuring the power, the wavelength and other parameters of the optical power meter must be set within the specified range. Then the optical power meter can be connected to the transceiver to measure the power of the receiver, or it can be connected to the light source to measure the power of the transmitter. Finally, record the measured value and compare it with the power value specified by the device to see whether it is in the specified floating range, which determing the failure of optical device.


Four main factors of Optical Power Meter

First, there are various optical power meters due to different application. An appropriate measurement is necessary according to the test. Common optical power meter can test optical power of common optical fiber communication. In special application, like Passive Optical Network(PON) and Coarse Wavelength Division Multiplexing(CWDM), PON optical power meters and CWDM optical power meters are be required to measure the optical power.Secondly, each optical power meter has a certain wavelength range (usually between 800nm-1700nm). Most optical fiber devices work at the regular wavelength( 850nm1310nm and 1550nm).For

more accurate measurement of the optical power, the wavelength range of the optical power meter is suggested to cover these three wavelengths. Thirdly, the power measurement range of the optical power meter also has an important influence on the accuracy of the measurement results. In common situation, the power measurement range of optical power for common applications should be between - 70dBm and + 30dBm. Finally, the diversity of interfaces is very useful now.In the past, optical power meters only have one FC interface, which is very inconvenient to use. Now, some optical power meters adopt the design of general interface, and some are equipped with MPO / MTP interface, which makes the measurement much more flexible.



With the fast development of the optical fiber communication. Optical fiber detection plays an important role in optical fiber network whenver installing new optical fiber and repairing old optical fiber. Optical power meter is used to measure power and detect loss, it is usefuil and necessary at present.

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