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 92 results

GAOTek 2W Rotary Attenuator

SKU: GAOTek-VOP-150
GAOTek 2W rotary attenuator can adjust the power level of the microwave circuit step by step within a certain frequency range without interrupting the circuit.

GAOTek Attenuation Tester Tool

SKU: GAOTek-VOP-174
GAOTek attenuation tester tool is applied to FTTx and access network construction and maintenance, to test fibre breakpoint, length, loss and input light automatic detection, automatic test by one key.

GAOTek Breakpoint Detector Optical Attenuator

SKU: GAOTek-VOP-176
This Breakpoint Detector Optical Attenuator has working temperature of 14° F to 122° F, testing wavelength of 1600 nm, and humidity of ≤90%.

GAOTek Card Encoder Modulator

SKU: GAOTek-VOP-166
GAOTek card encoder modulator has included encoding, multiplexing, and modulation

GAOTek CATV Attenuator

SKU: GAOTek-VOP-198
GAOTek CATV Attenuator supports use for continuously variable optical signal attenuation.

GAOTek Channel Variable Optical Attenuator

SKU: GAOTek-VOP-148
This Channel Variable Optical Attenuator has operating temperature of 14° F to 140° F, accuracy of ≤±0.3 dB, and attenuation range of 0 dB to -35 dB.

GAOTek Circle Portable Variable Attenuator

SKU: GAOTek-VOP-180
GAOTek circle portable variable attenuator provides 3 kinds of variable attenuators for different application.

GAOTek CW Wireless Attenuator

SKU: GAOTek-VOP-196
GAOTek CW wireless attenuators provides compact, portable instruments.

GAOTek Double Channel Variable Optical Attenuator Board

SKU: GAOTek-VOP-142
GAOTek double channel variable optical attenuator board is intelligent all-optical transmission platforms designed for enterprises.

GAOTek DWDM Attenuator

SKU: GAOTek-VOP-100
GAOTek DWDM attenuator provides online attenuation amount adjustment devices.

GAOTek EDFA Attenuator

SKU: GAOTek-VOP-191
GAOTek EDFA attenuator supports high-quality components and meticulous calibration procedures make it the instrument of choice for repeatable and accurate attenuation settings (up to 65 dB).

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 Fiber OTDR

SKU: GAOTek-VOP-165
GAOTek fiber OTDR has intelligent meter of a new generation for the detection of fibre communications systems.

GAOTek Fibre Optic Reflectometer

SKU: GAOTek-VOP-171
This Fibre Optic Reflectometer has attenuation dead zone of 13.12 ft, loss resolution of 0.001 dB, and minimum distance resolution of 0.328 ft.

GAOTek FTTX Optical Attenuator

SKU: GAOTek-VOP-193
This FTTX Optical Attenuator has an operating temperature of 14 °F to 122 °F, calibration wavelength of 1310 nm and maximum attenuation of 65 dB.

GAOTek Handheld Fibre Optical Variable Attenuator

SKU: GAOTek-VOP-149
GAOTek handheld fibre optical variable attenuator is used for continuously variable optical signal attenuation.

GAOTek Handheld Optical Variable Attenuator

SKU: GAOTek-VOP-151
GAOTek handheld optical variable attenuator is used for continuously variable optical signal attenuation.

GAOTek IDC Optical Attenuator

SKU: GAOTek-VOP-197
This IDC Optical Attenuator has an operating temperature of 14 °F to 140 °F, working wavelength of 1610 nm and working accuracy of ≤ ± 0.3 dB.

GAOTek Laser Measurement UART

SKU: GAOTek-VOP-190
GAOTek laser measurement UART has high-speed measurement lidar with a range of up to 0.06 mi (100 m). It integrates compensation algorithms for outdoor strong light and rain, snow, and fog environments internally, ensuring that it can still operate normally in strong light and rain, fog environments.

GAOTek Laser Power Attenuator

SKU: GAOTek-VOP-181
GAOTek laser power attenuation provides 3 kinds of variable attenuators for different application. The circular variable attenuator can make the optical density linearly varies around a circle for measuring laser energy farthest.

GAOTek Laser Power Attenuator

SKU: GAOTek-VOP-199
GAOTek laser power attenuator provides 3 kinds of variable attenuators for different applications.

GAOTek Laser Power Attenuator

SKU: GAOTek-VOP-122
GAOTek Laser Power Attenuation provides 3 kinds of variable attenuators for different application.

GAOTek Light Fibre Attenuator

SKU: GAOTek-VOP-121
GAOTek Light Fibre Attenuator is used for continuously variable optical signal attenuation.

GAOTek Motorized Variable Optical Delay Line

SKU: GAOTek-VOP-175
This Motorized Variable Optical Delay Line has operating temperature of 23° F to 158° F, operation wavelength of λc ±40 nm, and PDL of 0.1 dB.

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.