Anritsu MS9701B Optical Spectrum Analyzer

The Anritsu MS9701B is a modular optical spectrum analyzer that delivers precise spectral measurements across the ultraviolet to near-infrared spectrum. Operating as a plug-in module for the MS9030A display unit, It has engineers with high-resolution analysis capabilities essential for characterizing optical devices, evaluating DWDM systems, and conducting fiber-optic research.

Technical Specifications

• Wavelength Range: 350 nm to 1750 nm


• Wavelength Resolution: 0.1 nm (minimum) to 10 nm (maximum)


• Spectral Span: 50 nm to 500 nm


• Input Power Range: −55 dBm to +10 dBm


• Dynamic Range: 50 dB maximum


• Measurement Accuracy: ±1.5 dB


• Sweep Time: 1 s minimum


• Fiber Type: Single mode

Key Features

• Fine-grained wavelength resolution down to 0.1 nm enables detection of narrow spectral features and precise peak identification.


• Wide dynamic range of 50 dB accommodates both strong signals and weak optical components in a single measurement.


• Selectable resolution and span settings optimize measurement time versus spectral detail for diverse test scenarios.


• Remote control via GPIB and RS-232C interfaces supports automated test sequences and system integration.

Typical Applications

• Spectral characterization of laser diodes and light-emitting diodes


• DWDM channel analysis and wavelength grid verification


• Optical component evaluation including isolators and passive transmission elements


• Optical fiber system noise figure and gain assessment


• Fiber-optic device and system research and development

Compatibility & Integration The MS9701B operates as a plug-in module requiring the Anritsu MS9030A display unit for operation. Dual control interfaces

GPIB and RS-232C - enable remote operation and integration into automated measurement systems.