The Yokogawa AQ6370 is a sophisticated optical spectrum analyzer that provides precise spectral measurements in the visible and near-infrared regions. Its advanced features include high wavelength accuracy, narrow resolution bandwidth, and a wide dynamic range. It is used for characterizing lasers, optical fibers, and other optical components. The AQ6370 is equipped with a user-friendly interface and supports various communication interfaces for remote control and data acquisition. It is an indispensable tool for optical spectrum analysis.

Aumictech – Yokogawa AQ6370 Optical Spectrum Analyzer 600–1700 nm Specifications

Optical Performance

• Wavelength range: 600 to 1700 nm

• Span: 0.5 nm to full range, and 0 nm

• Wavelength accuracy: ±0.02 nm (1520–1580 nm), ±0.04 nm (1580–1620 nm), ±0.1 nm across the full range

• Wavelength linearity: ±0.01 nm (1520–1580 nm)

• Wavelength repeatability: ±0.005 nm

• Resolution bandwidth settings: 0.02, 0.05, 0.1, 0.2, 0.5, 1.0, 2.0 nm

• Resolution accuracy: ±5 % (≥0.05 nm RBW, resolution correction ON)

• Minimum sampling resolution: 0.001 nm

Level / Power Measurement

• Sensitivity modes: NORM_AUTO, NORMAL, MID, HIGH1, HIGH2, HIGH3

• Sensitivity (typical): down to −90 dBm (1300–1600 nm, HIGH3 mode)

• Maximum safe input power: +20 dBm

• Level accuracy: ±0.4 dB (1310/1550 nm, −20 dBm input, MID/HIGH modes)

• Level linearity: ±0.05 dB (−50 to +10 dBm)

• Flatness: ±0.1 dB (1520–1580 nm), ±0.2 dB (1450–1520 nm, 1580–1620 nm)

• Polarization dependence: ≤ ±0.05 dB

Dynamic Range & Stray Light

• Dynamic range (typical):
  • ~73 dB at ±1 nm (0.05 nm RBW)
  • ~62 dB at ±0.4 nm (0.05 nm RBW)
  • ~45 dB at ±0.2 nm (0.05 nm RBW)

• Stray light suppression ratio: up to 73 dB

• Overall level range: +20 to −90 dBm

Sweep & Speed

• Sweep time (100 nm span, typical):
  • FAST mode: ~0.2–0.5 s
  • NORMAL mode: ~1–2 s
  • HIGH SENS mode: 20–75 s

• Sweep modes: single, repeat, and continuous

• High dynamic mode: available to reduce stray light for improved measurement near strong peaks

Display, Storage & Interfaces

• Display: 10.4-inch color LCD, 800×600 resolution

• Trace memory: up to 64 traces and 64 programs

• Trace functions: subtraction, Max/Min hold, overlay comparison

• Interfaces: GP-IB, RS-232C, Ethernet, USB, trigger in/out, VGA output

• Data export formats: CSV, binary, BMP, TIFF

• Printer option: built-in thermal printer available

Physical & Power

• Dimensions (W×H×D): approx. 426 × 221 × 459 mm

• Weight: approx. 19 kg (without printer)

• Power supply: 100–240 VAC, 50/60 Hz, ~150 VA

• Operating environment:
  • Guaranteed performance: +18 to +28 °C
  • Operating: +5 to +35 °C
  • Storage: −10 to +50 °C
  • Humidity: ≤80 % RH, non-condensing

• Warm-up time: ~1 hour

Comparison: AQ6370 vs AQ6370C vs AQ6370D

• AQ6370: Earlier model covering 600–1700 nm with solid resolution and sensitivity, widely used in telecom and general R&D.

• AQ6370C: Improved version with enhanced accuracy and dynamic range, available in standard and high-performance variants.

• AQ6370D: Latest generation with faster sweep speeds, higher wavelength accuracy (±0.01 nm in high-performance version), and better close-in dynamic range for DWDM testing.

Why Choose Aumictech for the Yokogawa AQ6370?

The Yokogawa AQ6370 Optical Spectrum Analyzer is a proven instrument for telecom, photonics R&D, and optical component testing across the 600–1700 nm range. With its wide wavelength coverage, strong dynamic range, and flexible measurement modes, it continues to be a trusted solution for labs worldwide.

At Aumictech, we provide:

• NIST-traceable calibration to keep your AQ6370 performing within specifications

• Expert repair and service support for long-term reliability

• Upgrade and selection guidance, helping you choose between AQ6370, AQ6370C, and AQ6370D based on your accuracy and application needs