VOAPXIe – Modular Variable Optical Attenuator

The VOAPXIe is a reliable, fast and high density attenuation solution that seamlessly integrates with the PXI Platform.

This innovative module enables new mixed-signal testing capabilities for PXI users. Each VOAPXIe module has an integrated power meter for precise output power control, even with fluctuating input.


fast attenuationFast attenuation speed

Fast attenuation speed minimizes the down time during changes in attenuation settings to shorten your overall test time.

low insertion lossLow insertion loss

Maximise your power budget with the low insertion loss of VOAPXIe.

power monitoringBuilt in power monitoring capability

Eliminate the need for an extra power meter with the built-in power monitoring capability. Know the actual power coming out of the attenuator all from the same VOA module.

 0.01pm tuning resolutionConstant power output mode

With the built-in closed-loop power monitoring, VOAPXIe can operate in the constant power output mode to stabilize fluctuating input power.

narrow linewidthWide coverage of operational wavelengths

One versatile tool to cover a wide variety of applications.

seamless PXI integrationSeamless PXI integration

Take advantage of PXI’s integrated triggering and synchronization capabilities across electrical and optical instruments.


VOAPXIe is designed to be used in continuous production environments. It is built to the highest standards using components with high Mean-Time-Between-Failure (MTBF) specifications to minimize downtime.

Stable power output

The built-in power meter and power stabilization function lets you set and maintain the output power stability even when the input power fluctuates. You will get reliable and repeatable test results each and every time.

Select the best fit for your application

You can choose the broad wavelength range model for versatility or the narrow wavelength models for the best accuracy and performance.

VOAPXIe power control

This graph illustrates how quickly Coherent Solutions’ VOAPXIe moves to the desired setpoint.

VOAPXIe power stability – power mode

This graph illustrates the power output stability of < 0.005 dB RMS at various power setpoints.

1 year product warranty

This product comes with a 1 year warranty.

Download Spec Sheet

For more information, please download the VOAPXIe Preliminary Spec Sheet which includes full technical specifications.

 VOAPXIe Preliminary Spec Sheet


If you are interested in this product and would like to be contacted by our technical sales team, please leave your name and email below or email us at sales@coherent-solutions.com.

Application Notes

Relative Intensity Noise (RIN) Measurement
Semiconductor laser Relative Intensity Noise (RIN) is an important parameter that can cause significant degradation to the performance of fibre optic communications links. It is important for both laser manufacturers and systems designers to understand how RIN is measured to ensure reliable, accurate and repeatable results.

 Relative Intensity Noise (RIN) Application Note


installClick here to download installation guides, drivers and user manuals for this product.

Quote Request Form


* is required

Related products