Advantest Q8347 Optical Analyzer

Additional Features:

• Evaluates Optical Narrow-Band-Pass Filters For WDM
• High resolution: 0.01 nm (at 1.55 µm); 0.001 nm (at 0.5 µm); 1 GHz (at optical frequency mode)
• High wavelength accuracy: ±0.01 nm
• Measurement speed: 1 to 3.5 seconds
• Coherence analysis range: ±165 mm

Specifications

Wavelength

• Normal and High Resolution Mode Measurement Range: 0.35 to 1.75µm
• Max. Resolution Normal Mode: Approx. 0.1 nm/1.55µm; Approx. 0.05 nm/0.85µm
• Max Resolution High Resolution Mode: Approx. 0.01 nm/1.55µm; Approx. 0.003 nm/0.85µm
• Accuracy Normal Mode: ±0.1 nm or less
• Accuracy High Resolution Mode: ±0.01 nm or less
• Span: 0.01 nm/DIV to 140 nm/DIV

Level

Measurement Range (Input Sensitivity): 

• -72 to +10 dBm (1.2 to 1.6 µm)
• -65 to +10 dBm (0.7 to 1.6 µm)
• -52 to +10 dBm (0.45 to 1.7 µm)
• -42 to +10 dBm (0.35 to 1.75 µm)

The minimum level is measured over a 50 nm span and averaging 16 times.

• Accuracy: ±1.0 dB (780 nm), ±0.7 dB (1310 nm. 1550 nm) input level –10 dBm
• Linearity: ±0.1 dB/-20 dB or less; ±0.5 dB/-30 dB or less
• Dynamic Range: 35 dB or more (Value between peak and average display noise level)
• Repeatability including Polarization Dependence: ±0.1 dB or less (23±5ºC)
• Scale: 0.2, 0.5, 1.0, 2.0, 5.0, 10.0 dB/DIV, and LINEAR

Processing Functions

• Measurement Time Normal Mode: 1 sec. or less
• Measurement Time High Resolution Mode: 2.5 sec. or less (at long wavelength band: 0.95~1.75µm); 3.5 sec. or less (at short wavelength band: 0.35~1.05µm)
• Memory Function: 16 Screens (Measured Data) with Battery Backup; 10 Screens (Measured Conditions) with Battery Backup; Floppy Disk (MS-DOS format 720 KB/1.2 MB)
• Display: Frequency, Super Impose, 3-D, Trend Monitoring (Power, Wavelength); Division into 2 parts, Cursor Function, Color Display Customization, Listing
• Computing/Analysis: Spectrum Analysis, Coherence Analysis (Analysis Range: Max. ±165mm), Spectral-width Calculation, Automatic Peak Search, Normalization (LOSS/TRANS), Averaging, Automatic Setting of the Optimum Measurement Conditions; Curve fitting (sech, Gauss), Smoothing, MAX/MIN Hold

Input/Output

• Input Connector: FC Connector (Internal Fiber: PC Rubbed, GI 50/125)
• Data Output: GP-IB Equipped as Standard, Direct Plotter Output, Built-in Printer (Printing Speed: 8 sec. or less)

General Specifications

• Operating Environment: Temperature: +10 to +40ºC, RH 85% or less (Non-Condensing)
• Storage Environment: Temperature: ---10 to +50ºC, RH 90% or less (Non-Condensing)
• Power (Main Unit): AC100 to 120 V/220 to 240 V, 48 to 66 Hz, 180 VA or less
• Power (Optical Unit): AC100 to 120 V/220 to 240 V, 48 to 66 Hz, 80 VA or less
• Dimensions (Main Unit): Approx. 424 (W) x 221 (H) x 500 (D) mm
• Dimensions (Optical Unit): Approx. 424 (W) x 132 (H) x 500 (D) mm

The Advantest Q8347 spectrum analyzer enhanced the performance of spectrum analyzer employing a Fourier spectrum system with a Michelson interferometer. The Q8347 achieves wavelength resolution of 0.01 nm and wavelength accuracy of ±0.01 nm (resolution of 1 GHz and accuracy of ±1 GHz in optical frequency mode) at the 1550 nm spectrum band. In addition, the Q8347 is capable of accurately measuring each wavelength of optical wavelength division multiplexing (WDM) transmission signal by separating the spectrums. It is especially suitable for evaluating characteristics of optical narrow-band-pass filters used for WDM like AWG and Fiber gratings. Also, the Q8347 is powerful for analyzing chirps from LDs and Soliton transmission.

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