AQ6150 Optical Wavelength Meter Series

High-Performance and cost-effective

Yokogawa AQ6150 Optical Time Domain Reflectometer Series


  • High wavelength accuracy of ±0.3pm
  • Cope with modulated light and optical filter measurement
  • Simultaneous measurement of up to 1024 wavelengths
  • Increase throughput with high speed measurement
  • Upgrade the test system with ease
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    • Single and multi-wavelength mode
    • Delta wavelength mode
    • Optical spectrum view
    • Drift analysis
    • Fabry-Perot laser analysis
    • Direct operation with mouse
    • Data access through LAN
    • USB ports


  • WDM transmission systems
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    • Simultaneous measurement of multi-channel and narrow-spacing WDM system.
    • Precise adjustment and inspection of laser sources
    • Measurement of modulated signals

  • Lasers/Optical transceiver
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    • Precise adjustment and inspection of tunable lasers.
    • Modulated signal measurement of optical transceivers and transponders.
    • Measurement of all channels of 40G and 100G optical transceivers with WDM technology.

  • Calibration of test systems
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    • Calibration of optical spectrum analyzers.
    • Calibration of DFB lasers for optical amplifier test system.
    • Calibration of tunable lasers for passive component test systems


The AQ6150 Series Optical Wavelength Meter is an ideal instrument for accurately measuring the optical wavelength of optical devices and systems used in telecommunication applications from 1270 to 1650 nm (including C&L Band). By employing a Michelson interferometer and a high speed Fast Fourier Transform (FFT) algorithm, the AQ6150 series can measure not only a single wavelength laser signal, but also a multiple wavelength laser signal from a DWDM system and Fabry-Perot laser. Furthermore, this technology enables the measurement of modulated laser signals in addition to the CW signal from an optical transceiver. The optimized optical design and data processing routine significantly reduces the measurement time and improves manufacturing throughout.

IIII [+] Click here for Operation Features and Key Fuctions
  • High wavelength accuracy of ±0.3pm

  • The real-time correction feature utilizes a highly stable reference signal from the built-in wavelength reference light source in order to provide long-term stability for each measurement taken. The high accuracy AQ6151 model offers an accuracy of ±0.3pm to meet the most demanding precision requirements. The standard accuracy AQ6150 offers a ±1pm accuracy for applications with less demanding requirements at a more affordable price.
  • Simultaneous measurement of up to 1024 wavelengths

  • Measure up to 1024 wavelengths in a single input signal with a minimum separation of 5GHz simultaneously, quickly, and accurately. This means the AQ6150 Series optical wavelength meters can meet testing needs in the development and production of WDM transmission system today, as well as in the future.
    The multi-wavelength measurement capability contributes to production efficiency and cost reduction in the production of single wavelength laser devices as well by combining multiple laser modules or optical transceivers using an optical coupler and measuring all the signals at once. Maintain high performance even with low-power input.
    Equipped with an Auto Gain Control (AGC) function, the AQ6150 Series adjusts the gain of the electrical amplifier automatically based on the input signal power. This helps maximize wavelength accuracy and measurement speed, even if the input signal power is as low as -40 dBm.
  • Increase throughput with high speed measurement

  • For the adjustment and characterization of tunable laser sources and tunable optical transceivers requiring hundreds of wavelength measurements per device, high-speed measurement and processing capability are crucial for improving the production throughput. Both models can acquire, analyze, and transfer a measurement to a PC within 0.3 seconds. This is 5 times faster than our conventional model, vastly improving production throughput. In the Repeat Measurement mode, the AQ6150 series can collect 5 measurements per second, making it extremely useful when adjusting a device while monitoring the wavelength in real time.

  • Literature
  • Specifications
Model: AQ6150 OTDR Series
Display: 5.7-inch color LCD
Resolution: 640×480 dots
Wavelength AQ6150 AQ6151
Wavelength: 1270 to 1650 nm
Accuracy: ±0.7 ppm (±1 pm at 1550 nm ±0.2 ppm (±0.3 pm at 1550 nm)
Minimum Resolvable Separation: 5 GHz (40 pm at 1550 nm, equal power lines input)
Display Resolution: 0.0001 nm
Accuracy: ±0.5 dB (1550 nm, -10 dBm)
Linearity: ±0.3 dB (1550 nm, -30 dBm or higher)
Polarization Dependency: ±0.5 dB (1550 nm)
Display Resolution: 0.01 dB
Min. Input Power: -40 dBm (1270 to 1600 nm, single line input)
-30 dBm (1600 to 1650 nm, single line input)
Max. Input Power: +10 dBm (total of all lines)
Safe Input Power +18 dBm (total of all lines)
Measurement: Single, repeat, average, drift
Measurement Condition Setup: Average count, air/vacuum wavelength, device type (CW/modulated), measurement range
Display: Single wavelength, multi wavelength, delta, spectrum (with zooming), wavelength axis units (wavelength (nm)/frequency (THz)/wave number (cm-1)),
optical power units (dBm/mW/μW), center wavelength, total power, marker (up to 1024 points), label, power bar, warning messages, error messages,
system information
Data Analysis: Peak search, FP-LD analysis, drift analysis
File: Saving/loading measured results (CSV), saving/loading setup parameters (binary), saving screen images (BMP)
Remote Control: Interface selection (GP-IB/Ethernet), TCP/IP configuration, remote monitor
Others: Internal reference light source on/off, internal reference light source status LED, optical power offset, parameter initialization, firmware updating
Max. No. of Wavelengths 1024
Return Loss: 35 dB
Measurement Time: 0.3 s or less (single measurement)
Data Storage: Internal: 256 MB or more, External: USB
Interfaces: GP-IB, ETHERNET, USB, VGA output
Remote Control: GP-IB, ETHERNET
Optical Connector: FC/PC or SC/PC (AQ9441 Universal adapter)
Warm-up Time: Warm-up time 60 minutes or more
Power Consumption: Max 70 W (when charging battery and printing with optional printer)
Power Requirements: 100 to 240 V AC, 50/60 Hz, approx. 100 VA
Temperature Range: Performance guarantee temperature: 10 to 30°C
Operating temperature: 5 to 35°C,
Storage temperature: -10 to +50°C,
Humidity Range: 20 to 85%RH (no condensation)
Dimensions: Approx. 426 (W)×132 (H)×450 (D) mm (excluding protrusions)
Weight: approx. 11 kg
Immunity: EN61326-1 Table 2
Emission: EN61326-1 Class A, EN55011 Class A Group 1
Safety: EN61010-1