The Advantest Q8381A is a high-performance optical spectrum analyzer designed to measure a wide wavelength range from 350 to 1750 nm. It features high level measurement accuracy, exceptionally low polarization dependence, and specialized functions such as pulse light measurement and luminosity compensation, making it ideal for both display LEDs and optical communication devices.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488) |
| Display | 9-inch CRT display |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 / 120 / 220 / 240 V AC (selectable), 50/60 Hz, <= 150 VA |
| Operating Temperature | 0 to 40 °C |
| Dimensions (W×H×D) | 424 mm (W) x 222 mm (H) x 450 mm (D) |
| Weight | 25 kg |
Wavelength Specifications
| Parameter | Value |
|---|---|
| Wavelength Range | 350 to 1750 nm |
| Wavelength Accuracy | +/- 1 nm |
| Wavelength Linearity | +/- 0.5 nm (1.1 to 1.6 um) |
| Wavelength Span Range | 0.2 nm to 1400 nm, and 0 nm |
Optical Power and Amplitude
| Parameter | Value |
|---|---|
| Power Measurement Range | -85 to +10 dBm (1.1 to 1.6 um) |
| Maximum Input Power | +10 dBm |
| Power Level Accuracy | +/- 1.5 dB |
| Polarization Dependency | +/- 0.1 dB or less (1.1 to 1.6 um) |
| Dynamic Range | 40 dB (at +/- 1 nm), 50 dB (at +/- 2 nm) |
Resolution and Bandwidth
| Parameter | Value |
|---|---|
| Resolution Bandwidth (FWHM) | 0.1 nm to 5 nm (0.1, 0.2, 0.5, 1.0, 2.0, 5.0 nm) |
Measurement Speed and Sweep
| Parameter | Value |
|---|---|
| Sweep Time | 0.5 s or less (for 100 nm span) |
| Measurement Modes | Single, Continuous, Average |
Optical Interfaces
| Parameter | Value |
|---|---|
| Optical Input Connector Types | FC-PC (standard) |
| Compatible Fiber Types | 50/125 um GI fiber, 10/125 um SM fiber |
Analysis and Application Software
| Parameter | Value |
|---|---|
| Pulse Light Measuring Function | Built-in |
| Luminosity Compensation Display | Built-in |
| Built-in Analysis Functions | Automatic optimum measurement condition setting, automatic peak search, half-value width measurement |
| Spectral Width Analysis | Envelope method, RMS method, Threshold method |
External Connectivity and Control
| Parameter | Value |
|---|---|
| GPIB Interface | IEEE-488 standard |
Power and Electrical
| Parameter | Value |
|---|---|
| AC Input Voltage Range | 100 V / 120 V / 220 V / 240 V AC |
| AC Input Frequency Range | 50 Hz / 60 Hz |
| Power Consumption | 150 VA or less |
Physical Characteristics
| Parameter | Value |
|---|---|
| Display Type | 9-inch CRT |
Environmental
| Parameter | Value |
|---|---|
| Operating Humidity Range | 85% RH or less (no condensation) |
Technology
Monochromator-based Spectroscopy
Applications
Spectral analysis of LEDs, laser diodes (LDs), and optical communication components