LC in-Line fixed attenautor

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Optical attenuator is a passive device used to reduce the power level of an optical signal. It is generally used in single-mode long-haul applications to prevent optical overload at the receiver. Optical attenuator is widely used in CWDM&DWDM, CATV systems, data center networks, test equipment and other high power applications.

Patch cord in-line type Fixed attenuators from OMC offer defined control of optical signals in both integrated and add-on products.

Depending on the project or need, fixed attenuators can limit (attenuate) the amount of light passing through to the exact levels your project or application requirement. These precise attenuation levels provide for highly accurate performance.


OMC fixed attenuators are used in applications where a pre-determined amount of light loss is specified. Though its applications range widely, fixed attenuators are most commonly used for test and measurement, optical sensors, and telecommunications applications.


Attenuator Specifications

Items Parameters
Operating Bandwidth: SM MM
1310/1550nm 850nm
Insertion Loss <0.20db <0.35db
Return Loss UPC≥50db, APC≥60db PC≥35db
Connectors: SC,FC,LC,ST
Attenuation Tolerance 1~10db ≤0.5db; 11~30db≤1dB.
Vibration ≤0.1db change between 10~55hz(2hr)
Cable option: 2mm,0.9mm,3.0mm cable etc
Max Optical Input Power 200mw
Operating temp – 40°C to +85°C(≤0.2db insertion loss)



DWDM applications

Test & measurement

Optical sensors

Telecommunications applications

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