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Fiber attenuator LC is a passive fiber optic device used to reduce optical signal power. They are used to attenuate the input optical power, preventing distortion in the optical receiver caused by excessive input power. They are primarily used in fiber optic communication systems.
LC LC Attenuator Types
Based on their structure and function, LC fiber optic attenuators can be classified into the following categories:
LC Flange-type fixed optical attenuator
Simple structure, fixed attenuation value 1-30dB, suitable for scenarios requiring fixed attenuation.
LC Male-female type fixed attenuators (Build out attenuator)
One end is a connector type, the other end is an adapter type, with a non-adjustable attenuation value, suitable for attenuating optical power in optical links.
LC Mechanical variable optical attenuator
Manual adjustable attenuation value, suitable for scenarios requiring dynamic adjustment of optical power from 0dB to 60dB.
LC Inline optical attenuator
Manual adjustable attenuation value by a collimator, suitable for scenarios requiring dynamic adjustment of optical power from 0dB to 30dB.
LC Optical Attenuator Selection Guide
When selecting a LC fiber optic attenuator, it is necessary to choose the appropriate parameters and brand based on the specific application scenario and requirements, Yingda recommend considering the following aspects: attenuation value, insertion loss, return loss, and environmental adaptability (temperature coefficient, operating temperature range).
- Attenuation Value: Measured in decibels (dB), it represents the degree of signal power attenuation. Choose an appropriate attenuation value based on the optical link requirements, usually ranging from 0 to 30 dB.
- Insertion Loss: The power loss when the signal passes through the attenuator; the lower the better. Choose products with lower insertion loss to minimize signal loss.
- Return Loss: Choose products with higher return loss to improve signal quality.
- Environmental Adaptability: Temperature coefficient and operating temperature range.
Application Scenarios of LC LC Attenuators
LC LC attenuators are one of the most widely used fiber optic attenuators. Their main application is in optical communication systems, but they can also be used in home fiber optic networking, enterprise-level cabling, and other scenarios to solve network instability problems caused by excessive optical power.
Fiber Optic CATV
In fiber optic cable television systems, LC attenuators are used to balance the intensity of different optical signals, preventing distortion caused by excessive signal strength.
Fiber Optic Communication Systems
In fiber optic communication, LC attenuators are used to adjust the intensity of optical signals, ensuring the stability and reliability of signal transmission and preventing receiver distortion.
High-Power Optical Device Measurement
When measuring high-power optical devices, LC attenuators are used to reduce the input optical power and protect the measuring equipment.
Fiber Optic Testing and Measurement
Used for calibration, correction, and performance testing of fiber optic instruments, precisely controlling signal power to ensure testing accuracy.
Other Special LC Optical Attenuators
As mentioned above, LC fiber optic attenuators generally have both end faces with either UPC or APC connectors, using the same polishing method. However, we can also provide fiber optic attenuators with different polishing methods. An example is the LC UPC to LC APC attenuator shown in the image below. In addition to single mode LC fiber optic attenuators, we can also provide multi mode LC attenuators, including various fiber types such as OM1, OM2, and OM3.
Singlemode Plug In LC UPC to LC APC Attenuator (APC male to UPC female)
Multimode OM3 50/125um LC PC Attenuator Aqua (male to female attenuator)
Yingda can provide other types of attenuator in optical fiber connectors, such as SC, FC, ST, and SMA. Welcome to inquire and purchase.
