Programmable Benchtop Variable Optical Attenuator (VOA-B)

Data Sheet

Product Overview

The Optilab VOA-B series is a programmable benchtop variable optical attenuator, ideal for general lab testing and various applications such as EDFA amplifier qualification, DWDM system characterization, and loss simulation. The VOA-B has a nominal resolution of 0.1 dB and attenuation range of 30 dB, with the front panel providing an intuitive setting of the desired attenuation value. The large screen LCD displays the input and output power as well as the attenuation level, with the built-in RS232 port allowing for remote control and monitoring. The VOA-B is available in single mode (SM) and polarization maintaining (PM) versions, for increased flexibility and utility, contact Optilab for more information.


  • 30 dB Range
  • 0.1 dB Resolution
  • ± 0.1 dB Repeatability
  • Accuracy of ± 0.2 dB
  • RS232 Remote Interface
  • Single-Mode or Polarization Maintaining

Feature Name Description
Optical Specifications
Operating Wavelength Range 1200 -1700 nm
Attenuation Range 30 dB
Resolution 0.1 dB
Repeatability ± 0.1 dB
Change Rate < 3s
Accuracy ± 0.2 dB
Minimum Attenuation SM: 2.3 dB typ. PM: 5.0 dB typ.
Remote Communication RS 232, DB9 Connector
Maximum Optical Input Power 500 mW
Wavelength Dependent Loss Variation (1520 to 1570 nm) ± 0.1 dB
Polarization Dependent Loss 0.1 dB typ.
Optical Connectors FC/APC or SC/APC
Input voltage 100-240 V AC, 50-60 Hz
Dimensions (W x H x D) 280 x 90 x 340 mm
Weight 9 lbs
Operating Temperature 0º C to +40º C
Temperature Storage -40º C to +65º C
Humidity 85 % up to 40 °C