Introduction:
Fiber optic attenuators are devices that reduce signal power in fiber optic links by inducing a fixed or variable loss. They are used to control the power level of optical signals at the outputs of light sources and electrical-to-optical (E/O) converters. They are also used to test the linearity and dynamic range of photo sensors and photo detectors.
Fixed fiber optic attenuators are used to reduce the optical power signal in communication links. They work analogous to a step-down transformer. As the signal approaches a device or node in a communication link the power is reduced to a level that is suitable for its application. Communication links such as LAN, CATV and telecommunication networks use fixed fiber optic attenuators.
Features:
1. Low back reflection and Low PDL
2. High precision attenuation value
3. Precision control of attenuation range
4. Precision ceramic ferrule
Specification:
|
Attenuation value |
1,3, 5,10, 15, 20, 25 dB |
|
Attenuation precision |
1~2dB±0.5dB, 3~7dB±0.75dB, 8~25dB±0.1dB*A |
|
Return loss |
PC 45dB APC60dB |
|
Operation wavelength |
1310nm and 1550nm(SM) |
|
Polarization loss |
0.1dB |
|
Operation temperature |
-40°C ~ +75°C |
|
Storage temperature |
-40°C ~ +85°C |
Application:
1. EDFA, DWDM, Long-haul
2. Wide-Area Networks
3. Telecommunication networks
4. Gigabit applications ( ATM,Ethernet)