Q8381A - Advantest Optical Spectrum Analyzers

Q8381A - Advantest Optical Spectrum Analyzers

The Advantest Q8381A optical spectrum analyzer can analyze a wide wavelength band from 350 to 1750 nm and a wide dynamic range from -85 to +10 dBm (1.1 to 1.6 µm), accommodating measurements on display LEDs and optical devices for communication.
In addition, ADVANTEST’s unique technology realizes low polarization dependence and a high level measurement accuracy of ± 1.5 dB.
In addition to the automatic optimum measurement condition setting, automatic peak search and half-value width measurement functions, the Q8381A mounts the pulse light measuring function, power monitoring function and luminosity compensation display functions for improvement of operation and analysis capabilities. In conventional pulse light measurement, even if a number of averagings is made and the average power of duty ratio is obtained; low level and data missing may result. The Q8381A has solved all these problems.

  • Wide Wavelength Range: 0.35 to 1.75 µm
  • Low Polarization Dependence: ± 0.1 dB or less
  • High Input Sensitivity: -85 dB
  • Unique Pulse Light Measurement Function
  • Power Monitoring Function
Form Factor

Instrument Type

Low end wavelength limit
350 nm

High end wavelength limit
1750 nm

Wavelength Resolution

Wavelength Accuracy
0.5 nm (23 5 C), 1.0 nm (10 to 40C)

Dynamic Range
40 dB at 1 nm and 50 dB at 5 nm

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