Wavelength accuracy of ±20 pm (WDM-band) Dynamic range of 42 dB (0.2 nm from peak wavelength), 70 dB (1 nm from peak wavelength) Resolution (FWHM) of 0.05 nm max. WDM measurement of wavelength, level, and SNR for up to 300 channels –90 dBm optical reception sensitivity Tracking function with tunable laser source Device analysis: For analyzing and evaluating waveforms of optical devices (DFB-LDs, FP-LDs, LEDs) Waveform analysis: For waveform analysis by RMS and threshold methods; SMSR, half-width evaluation, WDM waveform analysis Application measurement: EDFA NF and gain measurement, polarization mode dispersion measurement Modulation, pulsed light measurement: Max. frequency range (VBW) = 1 MHz Markers  Multimarkers: Marker function for max. 300 points Zone markers: For waveform analysis within zone Peak/dip search: Searches for a peak or dip Power monitor: Also functions an optical power meter Vacuum wavelength display: Converts displayed wavelength to value in vacuum External interfaces: GPIB, RS-232C, VGA monitor output The MS9710C is a diffraction-grating spectrum analyzer for analyzing optical spectra in the 600 to 1750 nm wavelength band. In addition to uses such as measurement of LD and LED spectra, it has functions for measuring the transmission characteristics of passive elements such as optical isolators, as well as NF/Gain of optical fiber amplifier systems. In addition to its basic features, the superior stability and reliability of the diffraction grating (patent pending) offer the severe level and wavelength specifications particularly in the WDM band. This analyzer has the dynamic range, reception sensitivity and sweep speed requested by users, backed by Anritsu’s high-level technology. The high sensitivity meets the exacting demands placed on today’s measuring instruments. In particular, the excellent wavelength and level specifications fully meet the dense WDM requirements (1520 to 1620 nm). The MS9710C Optical Spectrum Analyzer is the successor to the popular MS9710B but with improved functions and higher performance. The specifications have been upgraded for the important 1.55 µm band for WDM communications and have also been optimised to include the new requirements for the L-band (1570 to 1620 nm) use. In addition to the high reliability and excellent basic performance, this analyzer has a full range of application functions to support accurate measurement in the fastest possible time.