Zhejiang Chaolian Electronic Co., Ltd.
Tel: +86-574-63939781 E-mail: sales@sur-link.com
Contact Now +86-574-63939781

Attenuator

An optical attenuator, or fiber optic attenuator, is a device used to reduce the power level of an optical signal, either in free space or in an optical fiber. The basic types of optical attenuators are fixed, step-wise variable, and continuously variable.

Fiber optic attenuators are devices which reduce (attenuate) the strength of a fiber optic signal within a fiber optic network. Attenuators are usually used when the signal arriving at the receiver is too strong and hence may overpower the receiving elements. This may occur because of a mismatch between the transmitters/receivers (transceivers, media converters), or because the media converters are designed for a much longer distance than for which they are being used. Sometimes attenuators are also used for stress testing a network link by incrementally reducing the signal strength (increasing the dB attenuation) until the optical link fails, thus determining the signal existing safety margin.

Optical 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. Sharp bends stress optic fibers and can cause losses. If a received signal is too strong a temporary fix is to wrap the cable around a pencil until the desired level of attenuation is achieved.
  • Attenuator Fiber SL07FA05D00

    Description: FO Attenuator FC/APC type, 5dB Plug-inAPPLICATIONS:1. Telecommunications2. LAN3. FTTH4. Optic fiber sensors5. Testing instrumentsFEATURES:1. Low Insertion tolerance2. Easy to handl...

  • Attenuator Fiber SL07FP05D00

    Description: FO Attenuator FC type, 5dB Plug-inAPPLICATIONS:1. Telecommunications2. LAN3. FTTH4. Optic fiber sensors5. Testing instrumentsFEATURES:1. Low Insertion tolerance2. Easy to handle3. ...

  • Attenuator Fiber SL07LP05D00

    Description: FO Attenuator LC/PC type, 5dB Plug-inAPPLICATIONS:1. Telecommunications2. LAN3. FTTH4. Optic fiber sensors5. Testing instruments FEATURES:1. Low Insertion tolerance2. Easy to handl...

  • Attenuator Fiber SL07SA05D00

    Description: FO Attenuator LC/PC type, 5dB Plug-inAPPLICATIONS:1. Telecommunications2. LAN3. FTTH4. Optic fiber sensors5. Testing instrumentsFEATURES:1. Low Insertion tolerance2. Easy to handle...

  • Attenuator Fiber SL07SA20D08

    Description: FO Attenuator SC/APC, 20dB Flange typeAPPLICATIONS:1. Telecommunications2. CATV3. Subscriber Loop4. Local area network5. Fiber to the home6. Optic fiber sensors7. Testing instrumen...

  • Attenuator Fiber SL07SP05D00

    Description: FO Attenuator SC type, 5dB Plug-inAPPLICATIONS:1. Telecommunications2. LAN3. FTTH4. Optic fiber sensors5. Testing instrumentsFEATURES:1. Low Insertion tolerance2. Easy to handle3. ...

  • Attenuator Fiber SL07SP20D03

    Description: FO Attenuator SC/PC, 20dB Flange typeAPPLICATIONS:1. Telecommunications2. CATV3. Subscriber Loop4. Local area network5. Fiber to the home6. Optic fiber sensors7. Testing instrument...