Fiber Variable Optical Attenuators 

GAO’s variable optical attenuators are devices that combines the functionalities of a variable optical attenuator with testing capabilities. It allows you to both control the power level of an optical signal and perform measurements or tests on fiber optic networks.   

GAO’s fiber variable optical attenuators are composed of a variable optical attenuator (VOA), control unit, power measurement unit, display, and power source.

The other common names of variable optical attenuators are optical signal attenuators, variable fiber optic attenuators, optical power attenuators, fiber optic signal attenuators, optical signal regulators, variable light attenuators, fiber optic power attenuators, optical signal intensity controllers, variable light intensity modulators, fiber optic signal intensity attenuators, optical power control devices, variable optical signal modulators, fiber optic attenuation devices, optical signal power adjusters, and variable light intensity attenuators.

Showing 1–24 of 93 results

 Advanced Fiber Optic Attenuator with 0-60dB Range & Precision – GAOTek

SKU: GAOTek-LTP-154
Refine your optical testing with telecom line tester, achieving precise 0 dB to 60 dB attenuation with accuracy up to 0.1 dB and user calibration.

Advanced Fiber Tester with 0 to 75dB Range & Fast Precision – GAOTek

SKU: GAOTek-LTP-180
Enhance testing efficiency with Telecom Line Tester, featuring advanced optical measurement capabilities, intuitive operation and color-coded results.

Advanced Reflectometer with 160km Range & High Speed Testing – GAOTek

SKU: GAOTek-VOP-187
Enhance testing efficiency with Reflectometer, featuring a full-touch screen for broadband and telecom networks with durability and user-friendliness.

Advanced Telecom Line Tester with 0.05dB Resolution & Auto Save – GAOTek

SKU: GAOTek-LTP-155
Advance your optical testing with Telecom Line Tester, featuring 0.05 dB resolution and auto-off with efficient auto-save and 40-hour battery life.

Attenuation Tester with 37-Mile Range & 3.5-Inch LCD – GAOTek

SKU: GAOTek-VOP-174
Compact FTTx tester with 37-mile range, 3.5-inch LCD, and 8-in-1 functions for fibre breakpoints, length, and loss detection.

Circle Optical Attenuator with OD3 Range & Custom Power Options – GAOTek

SKU: GAOTek-VOP-180
Portable optical attenuator with OD0 to OD3 range, customizable power, and 0° to 270° rotation for precise laser energy measurement.

Compact Telecom Line Tester with 95% RH Tolerance & USB Remote – GAOTek

SKU: GAOTek-LTP-160
Advance your testing with Line Tester, featuring 0.01 dB resolution, 95% RH tolerance, wide operating temperature range and over 300 hrs battery life.

Double Channel Variable Optical Attenuator with 800G High Capacity – GAOTek

SKU: GAOTek-VOP-142
Advanced double channel optical attenuator for secure data transmission, featuring up to 800G capacity and flexible grid options.

Dual-Channel Optical Attenuator with 0-35dB Range & LCD Display – GAOTek

SKU: GAOTek-VOP-197
Upgrade optical control with Dual-Channel Optical Attenuator, featuring real-time monitoring, high accuracy of ±0.3 dB and precision from 0 to -35 dB.

DWDM Optical Transceiver with 80km Range & C-band Tunable – GAOTek

SKU: GAOTek-VOP-162
Enhance connectivity with Optical Transceiver, featuring high-speed 9.95 to 11.3 Gb/s links, C-band tunable performance with applications up to 80 km.

Fiber Line Tester with 45dB Dynamic Range & 20h Standby – GAOTek

SKU: GAOTek-LTP-184
Upgrade optical testing with Advanced Telecom Line Tester with 45 dB range, featuring portability, a 5-inch color touch screen, and 20-hour battery.

Fiber Optic Tester with 159mi Test Range & High Power – GAOTek

SKU: GAOTek-LTP-159
Enhance optical testing with Line Tester, featuring 32 dB dynamic range, 1m dead zone, and 0.31 to 159.07 miles test range for precise measurements.

Fiber OTDR with 79.5miles Range & 33db Dynamic Range – GAOTek

SKU: GAOTek-VOP-165
Upgrade fiber network analysis with OTDR, featuring advanced diagnostics, and 5.8-inch TFT display for precise fiber communication detection.

Fiber Tester with 32dB Range & Real Time Fault Detection – GAOTek

SKU: GAOTek-VOP-186
Amplify efficiency with Tester for Communication, featuring real-time optical fiber scanning, smart trace analysis and user-friendly event reporting.

Fibre Optic Reflectometer 0.001dB Loss Resolution 13.12ft Zone – GAOTek

SKU: GAOTek-VOP-171
Fibre Optic Reflectometer offers 0.001 dB loss resolution and a 13.12 ft attenuation dead zone, perfect for precise fiber testing.

GAOTek Fiber Optic Tester

SKU: GAOTek-VOP-140
GAOTek fiber optic tester has continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing

GAOTek Pigtailed Variable Optical Attenuator (VOA)

SKU: GAOTek-OA-160
Variable Optical Attenuator (VOA) is an important optical passive device in optical fiber communications, through the attenuation of the transmitted optical power to achieve real-time control of the signal.

GAOTek Telecom Line Tester

SKU: GAOTek-LTP-176
This Telecom Line Tester has wavelength of 1310 nm or 1550 nm, dynamic range of 26 dB, wave range of 800 nm to 1700 nm, and resolution of 0.01 dB.

Handheld Fibre Optical Attenuator with 60dB Range 0.05dB Steps – GAOTek

SKU: GAOTek-VOP-149
Handheld Fibre Optical Attenuator allows continuous optical signal attenuation up to 60dB with precise 0.05dB step adjustments.

Handheld Optical Variable Attenuator 60dB Range 0.05dB Steps – GAOTek

SKU: GAOTek-VOP-151
This handheld optical variable attenuator offers continuous signal attenuation up to 60dB with precise 0.05dB step adjustments for testing.

High-Speed Laser Measurement UART with 100m Range & IP67 Rated – GAOTek

SKU: GAOTek-VOP-190
Upgrade measurements with Laser Measurement UART, featuring high-speed lidar with a 0.06 mi (100 m) range and robust performance in tough conditions.

Laser Power Attenuator with OD3 Range and High Damage Threshold – GAOTek

SKU: GAOTek-VOP-122
Laser power attenuator with OD3 range and high damage threshold. Ensures precise control with excellent durability and protection for high-power lasers.

Light Fibre Attenuator with 60dB Range and Auto-Off Feature – GAOTek

SKU: GAOTek-VOP-121
Light fiber attenuator with 60 dB range and auto-off feature which Provides high accuracy, low insertion loss, and energy-saving convenience.

Microwave Rotary Attenuator with 0-90dB Range & High Accuracy – GAOTek

SKU: GAOTek-VOP-150
Precise 2W rotary attenuator with 0-90 dB adjustment range and ±0.6 dB accuracy for microwave circuits. Compact and reliable.

GAO Tek’s fiber variable optical attenuators have the following functions:

  • Attenuation Control: The fundamental function of GAO’s VOA tester is to control the power level of an optical signal by introducing variable attenuation. It allows you to adjust the signal power according to your testing requirements. This function is essential for simulating various scenarios and assessing the performance of fiber optic networks under different power levels. 
  • Power Measurement: Our fiber variable optical attenuators include power measurement capabilities. They enable you to measure and monitor the optical power level before and after attenuation. 
  • Testing and Characterization: GAO’s fiber variable optical attenuators can be used to perform various tests and characterization tasks on fiber optic networks. 
  • Configuration and Control: Our fiber variable optical attenuators provide configuration and control options to customize the testing parameters and settings. This allows users to set attenuation values, select wavelengths, adjust power levels, and configure other test parameters based on specific testing requirements. 

GAO Tek’s fiber variable optical attenuators are rugged, versatile, and precision measurement instruments. They comply with applicable industry standards such as international electrotechnical commission (IEC) standards, telecommunications industry association (TIA) standards, and telecommunications standards development society.  

Our fiber variable optical attenuators help our customers comply with relevant US government regulations such as: 

  • Federal Communications Commission (FCC) Regulations 
  • Occupational Safety and Health Administration (OSHA) Regulations
  • Environmental Regulations 
  • Export Control Regulations 

Our fiber variable optical attenuators help our clients in complying with relevant Canadian government regulations such as: 

  • Innovation, Science, and Economic Development Canada (ISED) Regulations. 
  • Canadian Environmental Protection Act (CEPA) 
  • Waste Electrical and Electronic Equipment (WEEE) Regulations 
  • Export Control Regulations 

Our fiber variable optical attenuators have the following applications: 

  • Network Characterization: GAO’s VOA fiber variable optical attenuators are used to characterize the performance of fiber optic networks. By adjusting the attenuation levels, VOA testers simulate different power conditions, allowing technicians to assess the network's response under varying signal power levels. This helps identify potential issues, such as signal degradation, power imbalances, or sensitivity to power fluctuations. 
  • System Calibration: Our fiber variable optical attenuators can be used in calibrating fiber optic systems. They enable technicians to set precise power levels and validate the accuracy of power measurements throughout the network. This ensures that the system operates within the desired power range and helps maintain reliable and consistent signal transmission. 
  • Power Management: Our fiber variable optical attenuators are employed for power management purposes in fiber optic networks. They allow technicians to adjust the signal power to optimize performance, mitigate signal distortion, and maintain the power levels within the desired range. This is particularly important in long-haul transmission systems or networks with multiple components and connectors. 
  • Component Testing: GAO’s fiber variable optical attenuators are used to test and evaluate individual fiber optic components, such as connectors, couplers, or splitters. By adjusting the attenuation, technicians can measure the insertion loss, reflectance, and other performance parameters of these components. This helps ensure their quality, reliability, and compliance with industry standards. 
  • Link Loss Measurement: GAO’s fiber variable optical attenuators assist in measuring link loss or attenuation between two points in a fiber optic link. By adjusting the attenuation levels, technicians can measure the loss accurately and identify any potential issues, such as high loss points, faulty splices, or damaged fibers. This information is essential for troubleshooting and optimizing the performance of the fiber optic link.

Our fiber variable optical attenuators can be shipped overnight within the continental U.S. and Canada, and can be shipped globally.Â