How to buy optical power meter, light source, optical multimeter?
Optical wavelength: Currently, the optical wavelength used in the communications sector is basically two kinds: 1310nm and 1550nm.
Optical power: the current telecom, Unicom, mobile, Tietong, Netcom department to test the power range -70dbm ~ +3dbm can basically meet the requirements; radio and television departments (video companies) sometimes test the power of a larger, need to be -55dbm ~ +20dbm power test range
Light source: communications sector applications are 1310nm and 1550nm wavelength, then the corresponding instrumentation should be 1310nm and 1550nm light source of two kinds
Red light source: the current commonly used is 650nm red light source. In the engineering construction and maintenance of the majority of workers by the favourite. Can be intuitively displayed in the optical fibre of the fibre, a simple judgment of the pigtail through and through, is a powerful complement to the OTDR, the project is widely used, and even more than the number of times the optical power meter is used. It is recommended to buy optical power meter or optical multimeter with red light source, which can greatly facilitate the application of engineering.
Light source output power: output power refers to the stable light source in the specified mode of operation and after preheating stable work output optical power. There are two kinds of LED and LD. LED belongs to the light-emitting diode generated when the output power is very small light source, common is the output ≤-10dbm; LD belongs to the laser generator source, usually with the light source ≥-10dbm, the light source output power will be able to facilitate the test of long-distance optical fibre light decay consumption value.
Light source stability: stable light source in the specified mode of operation and after preheating stable work, from time T0 to time T1 the degree of change in the output optical power is known as the stability of the power of the stable light source. National standard: ≤ 0.1db (15min) ≤ 0.5db (5min)
Optical multimeter: the current function is more powerful, and whether in engineering or daily maintenance or teaching, the multimeter is a good choice, especially suitable for the communication field of optical fibre loss measurement and so on. The test kit provides high-precision metal ferrule calibrated optical patch cords, sturdy shockproof carrying case and cleaning rod specially designed for cleaning optical interfaces. The ** embodiment of customer application needs, but also your wise choice!
Optical attenuation value: Communication departments usually need to test the optical attenuation value of a section of optical fibre, i.e. the reduction of optical power after the light source passes through the optical fibre. Need to use the instrument is: light source, optical power meter
