Another two fiber optic testers are optical power meter and optical light source.

Optical Power Meter

Optical power meters are used to measure the absolute optical power or the relative length of optical fiber optical power loss. Measuring optical power is the most basic in the fiber-optic system. Very much like the electronics multimeter, in optical fiber measurement Optical Power Meter is a heavy-duty commonly used table, and it is suggested that each of the fiber optic technicians should staff one. Through the measurement of the absolute power of the transmitting end optical network, a power meter can be able to evaluate the performance of the light end equipment. With an optical power meter and stabilized optical light source used in combination, it is possible to measure the connection loss, test continuity and help evaluate the transmission quality of fiber link.

For any manufacturing of optical fiber transmission system, installation, operation and maintenance, optical power measurement is essential. In the field of optical fiber, if there are no optical power meters, any engineering, laboratory, manufacturing floor or telephone maintenance facilities are unable to work. For example, Optical Power Meter can be used for measuring the output power of the laser light source and the LED light source; used to confirm the estimate of the loss of the optical fiber link; most important of which is that it is a test optical components (fiber, connectors, connecting sub, attenuator key performance indicators, etc.) instrument.

Specific applications for users to select the appropriate optical power meter, should pay attention to the following points:
1). Select the optimal probe type and interface type.
2). The evaluation calibration accuracy and manufacturing calibration procedures, and the required range of optical fiber and connector match.
3). Determine if the model is consistent with the measurement range and display resolution.
4). With the direct dB insertion loss measurement function.

Optical Light Source

Optical light source are used transmitting the light with known power and wavelength to optical system. As mentioned, a stabilized light source together with an optical power meter, can measure the optical loss of the optical fiber system. In off-the-shelf optical fiber system, usually the transmitting end of the system machine plays a role as a stable light source. If the end of the machine does not work or does not end machine, you need to separate stable light source. The stability of the wavelength of the light source should be as consistent as possible with the wavelength of the system end machine. After installation of the system, often need to measure the end-to-end loss, in order to determine whether the connection loss to meet the design requirements, such as: measuring connectors, splices point loss, and optical fiber body loss.

Optical light source transmit the light wtih known power and wavelength to enter the optical system in the process of measuring loss. Optical power meter which is used calibrating a specific wavelength light source, will receive light from the optical fiber network and convert it into electrical signals. To ensure the accuracy of loss measurement, the transmission equipment taht used in the fiber optic light source simulation should have these features.
1). The same wavelength, and uses the same type of light (LED, laser).
2). During the measurement, ensure the stability of the output power and spectral (time and temperature stability).
3). To provide the same connection interface, and use the same type of fiber.
4). The size of the output power should meet the worst-case system loss measurements.

When the transmission systems require a separate stable light source, the optimal choice of light source should simulate the characteristics of the system Optical and measurement needs. When you select light source, it should be considered to the following aspects: a laser tube (LD) from the the LD light emitted from a narrow wavelength bandwidth, almost monochromatic, i.e. a single wavelength. Compared with the LED, through its spectral band (less than 5nm) the laser is not continuous, and on both sides of the center wavelength, but also the emission the several lower peak explants wavelength. Compared to the LED light source, laser source provides more power, but its price is higher than the LED. Laser tube is commonly used in the loss of more than 10dB of long-haul single-mode system. You should avoid measuring multimode fiber with laser light source.

Article source: FiberStore.com

Fiber Optic Test Light which working with ST SC FC and more connectors,can test all kinds of Fiber either with the connector or bulk. It’s a kind of Fiber Optic Light Source which is used as a Fiber Optic Tester very much. It’s a necessity for performing fiber optic network testing to measure the fibre optical loss for both single mode fiber cable and multimode fiber cables. And there is a very simple tool called Fiber Optic Test Light. It shines light throught fiber to check for breaks or correct fiber. Though it’s a simple test tool,sometimes that’s all you need because it can excellent addition to any technicians tool kit.

This fiber optical visual light source can provide wavelength output according to the specific requirements including the 650nm red source, 1310nm/1550nm wavelength for the single mode fiber and 850nm/1300nm wavelength for the multimode fiber. Usually the optical light source is used with the fiber optic power meters,they act as an economic and efficient solution for the fiber optic network works. For example,one of the products is called JW3111-3 Fiber Optical Light Source (650/850/1300nm).It is a handheld optical light source, newly released in 2007. It can provide 1 to 6 wavelengths output to satisfy specific requirements including the 650nm visible light source and the 1310/1550nm wavelengths for single mode fiber or the 850/1300nm wavelengths for multimode fiber, as well as other wavelengths according to customer’s needs. Together with the JW3211 optical power meter, it is a perfect solution for fiber optic network applications.

Fiberstore supplies the fiber optic light sources with different working wavelength, and these handheld fiber optic light sources are good prices and fast delivery. Fiber Optic Light Sources for testing fiber optic cables are available from us with good prices. We are professional Light Sources suppliers providing good price Light Sources for you. Fiber optic light source is usually used with the power meters, they can perform the basic test of the fiber optic systems.They are designed to cover a variety of wavelength ranges to suit all optical testing needs and usually the optical light sources are used with the fiber optic power meter to test the fiber system loss. Light sources are offered in a variety of types including LED, halogen and laser. Fiber Optic Light Sources can be used in conjunction with the Power Meter to provide a very accurate and reliable attenuation test solution.

Fiber Optic Test Light which working with ST SC FC and more connectors,can test all kinds of Fiber either with the connector or bulk. It’s a kind of Fiber Optic Light Source which is used as a Fiber Optic Tester very much. It’s a necessity for performing fiber optic network testing to measure the fibre optical loss for both single mode fiber cable and multimode fiber cables. And there is a very simple tool called Fiber Optic Test Light. It shines light throught fiber to check for breaks or correct fiber. Though it’s a simple test tool,sometimes that’s all you need because it can excellent addition to any technicians tool kit.

This fiber optical visual light source can provide wavelength output according to the specific requirements including the 650nm red source, 1310nm/1550nm wavelength for the single mode fiber and 850nm/1300nm wavelength for the multimode fiber. Usually the optical light source is used with the fiber optic power meters,they act as an economic and efficient solution for the fiber optic network works. For example,one of the products is called JW3111-3 Fiber Optical Light Source (650/850/1300nm).It is a handheld optical light source, newly released in 2007. It can provide 1 to 6 wavelengths output to satisfy specific requirements including the 650nm visible light source and the 1310/1550nm wavelengths for single mode fiber or the 850/1300nm wavelengths for multimode fiber, as well as other wavelengths according to customer’s needs. Together with the JW3211 optical power meter, it is a perfect solution for fiber optic network applications.

Fiberstore supplies the fiber optic light sources with different working wavelength, and these handheld fiber optic light sources are good prices and fast delivery. Fiber Optic Light Sources for testing fiber optic cables are available from us with good prices. We are professional Light Sources suppliers providing good price Light Sources for you. Fiber optic light source is usually used with the power meters, they can perform the basic test of the fiber optic systems.They are designed to cover a variety of wavelength ranges to suit all optical testing needs and usually the optical light sources are used with the fiber optic power meter to test the fiber system loss. Light sources are offered in a variety of types including LED, halogen and laser. Fiber Optic Light Sources can be used in conjunction with the Power Meter to provide a very accurate and reliable attenuation test solution.