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The Yokogawa AQ6370B Optical Spectrum Analyzer has a wide close-in dynamic range allows accurate OSNR measurement of DWDM transmission systems (up to 50 GHz spacing). The built-in WDM analysis function analyzes the measured waveform and shows peak wavelength, peak level and OSNR of WDM signals up to 1024 channels simultaneously. The curve fit function is used to accurately measure noise levels. The ASE interpolation method is used to measure gain, NF, and key parameters for optical fiber amplifier evaluation. With WDM-NF analysis function, up to 1024 channels of multiplexed signals can simultaneously be tested. An ASE level for NF measurements is calculated by using a curve-fit function for each WDM channel. The curve-fit and source spontaneous emission (SSE) suppress function enhance a measurement accuracy. In conjunction with bit error rate test (BERT) equipment, the AQ6370B can measure the center wavelength and spectral width of transceivers and LD modules. Various built-in analysis functions, such as DFB-LD, FP-LD (VCSEL), and LED facilitate test process. In conjunction with a white light source, an ASE light source or other broadband light source, you can simply perform evaluation of passive devices such as WDM filters and FBG. Specifications. Wavelength range: 600 to 1700 nm. Span: 0.5 nm to 1100 nm (full span), and 0 nm. Wavelength accuracy: ± 0.02 nm (1520 to 1580 nm), ± 0.04 nm (1450 to 1520 nm, 1580 to 1620 nm), ± 0.10 nm (Full range). Wavelength resolution setting: 0.02, 0.05, 0.1, 0.2, 0.5, 1 and 2 nm. Minimum sampling resolution: 0.001 nm. Number of sampling: 101 to 50001, AUTO. High dynamic mode: SWITCH (Sensitivity: MID, HIGH1-3). Level sensitivity: -90 dBm (1300 to 1620 nm), -80 dBm (1000 to 1300 nm), -60 dBm (600 to 1000 nm) (Sensitivity: HIGH3). Maximum safe input power: + 25 dBm (Total input power). Level accuracy: ± 0.4 dB (1310/1550 nm, Input level: -20 dBm, Sensitivity: MID, HIGH1-3). Level linearity: ± 0.05 dB (Input level: -50 to +10 dBm, Sensitivity: HIGH1-3). Dynamic range: 45 dB (Peak ± 0.2 nm, Resolution: 0.05 nm), 62 dB (Peak ± 0.4 nm, Resolution: 0.05 nm). Applicable fiber: SM, GI (50/125 µm, 62.5/125 µm). Electrical interface: GP-IB × 2 (standard/controller), RS-232, Ethernet, USB, PS/2 (keyboard), SVGA output, Analog output port, Trigger input port, Trigger output port. Display: 10.4-inch color LCD (Resolution: 800 × 600).
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