An optical attenuator is a device used to reduce the power level of an optical signal, either in free space or in an optical fiber.
Attenuators are commonly used in fiber optic communications, either to test power level margins by temporarily adding a calibrated amount of signal loss, or installed permanently to properly match transmitter and receiver levels.
Fixed optical attenuators used in fiber optic systems may use a variety of principles for their functioning. Preferred attenuators use either doped fibers, or miss-aligned splices, since both of these are reliable and inexpensive. Inline style attenuators are incorporated into patch cables. The alternative build out style attenuator is a small male-female adapter that can be added on to other cables.
Fixed optical attenuators are used to reduce the power of light signals being transmitted through optical fibers. With fixed optical attenuators, signals are reduced by a specific amount. Using fixed attenuators makes signal reflection less of an issue and therefore makes for more accurate transmissions of data.
Fixed attenuators can be used with single mode, multimode and polarization maintaining fiber. There is low insertion loss and back reflection with the use of fixed optical attenuators.
Fixed Optical Attenuator
Application:
Fixed attenuators are used in applications where a pre-determined amount of light loss is specified.
- DWDM applications
- Test & Measurement
- Optical Sensors
- Telecommunications applications
Feature:
- Singlemode and multimode
- Multi attenuation methods, Core off-set, air gap, and filtered
- Low insertion loss and back reflection
- Attenuation ranges from 1dB to 30 dB
- PC, UPC and APC polish types
- FC, SC, ST, LC and MU terminations available
Specification:
Environment Conditions
|
No. |
Parameters |
Min. |
Max. |
Units |
|
1 |
Operating Temperature |
-40 |
75 |
degree |
|
2 |
Storage Temperature |
-40 |
75 |
degree |
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