Yokogawa AQ6319 Fiber Optical Spectrum Analyzer

High-precision ultra-DWDM signal analysis

Yokogawa  AQ6319 Optical Spectrum Analyzer High-precision ultra-DWDM signal analysis


  • Ultra high Wavelength Accuracy
  • ±10 pm (1520 to 1580 nm)
  • ±20 pm (1450 to 1520 nm)
  • ±20 pm (1580 to 1620 nm)
  • ±50 nm ( 600 to 1700 nm)
  • The above specs are after calibration with a built-in source
  • High Wavelength Linearity
  • ±10 pm (1520 to 1580 nm)
  • ±20 pm (1450 to 1520 nm)
  • ±20 pm (1580 to 1620 nm)
  • The above specs are after calibration with a built-in source
  • High Wavelength Resolution

Provides maximum wavelength resolution at 10 pm

  • High Wavelength Resolution Accuracy

Provides excellent wavelength resoluti>n accuracy within ±2%

  • Best Optical Performance

Wide close-in dynamic range:

70 dB @ ±0.2 nm

Fast sweep and quick response

  • Versatile Analysis Functions

Comes with zooming and overview windows

  • Low Polarization Dependency

Measurements such as gain of the optical amplifier can proceed accurately because polarization dependency is suppressed as low as ±0.05 dB.

  • High Power Measurement

Max input power: +23 dBm per channel; Max safe input power: +27 dBm

  • Multiple Communication Interface

GP-IB, LAN, printer, and oters.

  • Easy Operation with Mouse and Keyboard
  • Large Data Storage and Fast Data Transfer (FTP)

Product Description:


The AQ6319 has the best optical performance on the market and provides customers with a user-friendly interface for fast and accurate measurement. In fact, the AQ6319 raises the standards in the optical testing industry with it’s high-precision ultra-DWDM signal analysis.

With an unprecedented wavelength accuracy of ±10 pm (1520-1580 nm), the AQ6319 OSA provides outstanding performance in both general and specialized R&D labs. Ando keeps the “free-space” design between the incident beam and the monochrometer; this proven technology which is inherited from the world-renowned AQ6317 series of OSA’s offers researchers greater ease when using specialty fibers, especially with large core diameters. The new AQ6319 offers a much faster sweep speed than the previous models. It also features a LAN connection for faster and easier data transfer, as well as remote control capabilities and new analysis functions.

General Information:

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Best optical performance

Close-in dynamic range:• 60dB at peak ±100pm• 70dB at peak ±200pm

Close-in dynamic range:• 60dB at peak ±200pm
  • High wavelength accuracy: ±10pm
  • High wavelength resolution: 10pm
  • High wavelength resolution accuracy: ±2%
  • Wide close-in dynamic range
Fast sweep and quick response
  • Measurement time is as low as 1/5 compared to the conventional models (AQ6317 Series)*
  • Faster auto-ranging in all sensitivities
  • Quicker key response as measurement conditions change
User-friendly GUI and powerful functions
  • Easy operation with mouse/keyboard
  • Compatible with multiple interfaces (GP-IB, LAN, printer, etc.)
  • Large data storage area and fast data transfer (FTP)
  • Enhanced built-in applications
Powerful functions
  • Waveform zooming and display overview window
  • Automatic interpolation setting function
  • Selectable display mode (Trace and Table/Table/Trace)
  • OSNR/Gain/NF measurement function]
  • Parameter dialog display simplifies setting

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25GHz spacing DWDM signals
Wavelength resolution at 0.01nm
Wavelength resolution at 0.05nm
The wide close-in dynamic range makes it possible to accurately measure OSNR of DWDM signals with 25GHz
(or narrower) spacing. Even at 0.05nm resolution setting, ASE noise between channels can be measured flatly.
AQ7932 OTDR Emulation software (option)
10Gbps, NRZ, PRBS 2^31, wavelength resolution at 0.01nm
40Gbps, RZ, PRBS 2^7, wavelength resolution at 0.01nm
With its high resolution and wide close-in dynamic range, a side-band at 10Gbps or 40Gbps modulatedsignal can be observed clearly.

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Evaluation of Optical Passive Device Using Synchronized Sweep
Enables synchronous sweep measurement* when used with the AQ2200-136 turnable laser source (wavelength range: 1440-1640 nm).
Display9 Wide dynamic-range measurement using a synchronous wavelength sweep function of a tunable laser source and optical spectrum analyzer is suitable for evaluating devices with high crosstalk. Through synchronized sweep with the AQ2200-136 Turnable Laser Source, the AQ6319 Optical spectrum analyzer can achieve dynamic measurement of a wide, 80 dB or higher.
Also, peak/bottom wavelength, level, crosstalk, and ripple width can be simultaneously measured using the optical filter function.
Example of transmission characteristics of CWDM filter
measurement Wavelength window: 1500-1600 nm, SENSE: HIGH1
  • Synchronous sweep measurement is a function that performs wavelength sweep measurement while synchronizing the measurement wavelength of the optical spectrum analyzer to the emission wavelength of the turnable laser source, all without using an external PC for control.
  • About twice the measuring speed compared to our conventional synchronous sweep. (AQ6317C OSA and AQ4321 TLS*)

Measurement conditions: SPAN: 100 nm, SENS: NORM HOLD, SAMPLE: 1001


High Speed Stray Light Reduction Functiont
Chop Mode Selection Screen
CHOP MODE selection screen
New High Speed Stray Light Reduction Function!(SWITCH Sweep Function)Measurement with stray light reduction is faster!
A high speed stray light* reduction function (SWITCH sweep function) has been added, speeding up measurement times. When compared to the CHOP function used in conventional models, the stray light reduction function is Approximately 2.4 times faster.Measurement conditions: SPAN: 0.5 nm, RES: 10 pm, SENS: HIGH1/SW, SAMPLE: AUTO
* Stray light originates from reflection and scattering on the surfaces of optical components inside optical instruments and their holders. As it is from factors other than normal refraction and reflection, it can be harmful to image formation.
LAN Function
LAN Remote FunctionIn addition to GP-IB and RS-232C, the unit also comes with LAN-based remote control functions!
The LAN function enables remote control of an external instrument. Also, by entering network settings on the instrument (computer name and LAN port interface settings for TCP/IP) you can open a connection with an external PC using FTP client software. The connection lets you write waveform and program data saved on the unit’s hard disk (HDD) at high speed from the PC using FTP.
FTP Server Function
FTP Server FunctionLAN connection with an external PC! Write data from the instrument’s hard disk (HDD) via FT

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Applicable fiber SM (9.5/125μm), GI (50/125μm)
Measurement wavelength range 600 to 1700nm
Span 0.1nm to full range and zero span
Wavelengthaccuracy1), 2), 3), 4) ±10pm (1520 to 1580nm, after calibration with built-in source)
±20pm (1450 to 1520nm, after calibration with built-in source)±20pm (1580 to 1620nm, after calibration with built-in source)±50pm (Full range, after calibration with built-in source)
Wavelengthlinearity1), 2), 3), 4) ±10pm (1520 to 1580nm, after calibration with built-in source)±20pm (1450 to 1520nm, after calibration with built-in source)±20pm (1580 to 1620nm, after calibration with built-in source)
Wavelength repeatability1), 2), 3), 4) ±2pm (1min. or less, 1450 to 1620nm)
Number of samplings 101 to 50001
Resolution bandwidth 0.01, 0.02, 0.05, 0.1, 0.2, 0.5 and 1nm
Resolutionaccuracy1), 3), 4), 5) ±2% (RES.: 0.1nm or wider, 1450 to 1620nm)±2.5% (RES.: 0.05nm, 1450 to 1620nm)±6% (RES.: 0.02nm, 1450 to 1620nm)
Level sensitivitysetting 6) NORM_HOLD, NORM_AUTO, MID, HIGH 1, HIGH 2
and HIGH 3
Levelsensitivity1), 3), 5), 7) -90dBm (1250 to 1620nm, RES.: 0.05nm or wider,
SENS.: HIGH 3)-80dBm (1000 to 1250nm, RES.: 0.05nm or wider,
SENS.: HIGH 3)-60dBm (800 to 1000nm, 1620 to 1680nm, RES.:
0.05nm or wider, SENS.: HIGH 3)
Level accuracy1), 5), 7), 8) ±0.3dB (1550/1600nm, 0/-20dBm, RES.: 0.02nm or wider)±0.3dB (1310nm, 0/-20dBm, RES.: 0.05nm or wider)
Level linearity1), 3), 5), 7) ±0.05dB (-50 to +10dBm, RES.: 0.02nm or wider,
SENS.: HIGH 1 to 3)
Level flatness1), 5), 7), 8) ±0.1dB (1520 to 1620nm, -20dBm, RES.: 0.02nm or wider)
Level stability1), 5), 7), 8) ±0.01dB at 1min., ±0.02dB at 15min. (1550/1600nm,-20dBm, RES.: 0.05nm or wider)
Maximum input power1) +23dBm (Per channel, Full span, Attenuation on)
Safe max. input power1) +27dBm (Total safe power, Attenuation on)
Close-in dynamic range1), 5), 7), 9) 40dB (±50pm from peak at 1523nm, RES.: 0.01nm)60dB (±100pm from peak at 1523nm, RES.: 0.01nm)70dB (±200pm from peak at 1523nm, RES.: 0.01nm)60dB (±200pm from peak at 1523nm, RES.: 0.1nm)
Polarization dependency1), 5), 7) ±0.05dB (1520 to 1620nm, RES.: 0.02nm or wider)±0.07dB (1450 to 1520nm, RES.: 0.02nm or wider)±0.07dB (typ.) (1310nm, RES.: 0.05nm or wider)
Sweep time 0.5 sec. (any 100nm, SMPL.: 1001, SENS.:NORM_HOLD)10) 1 sec. (any 100nm, SMPL.: 1001, SENS.: MID)10)3 sec. (any 100nm, SMPL.: 1001, SENS.: HIGH 1)10)15 sec. (any 100nm, SMPL.: 1001, SENS.: HIGH 3)11)120 sec. (any 100nm, SMPL.: 1001, SENS.: HIGH 3

with chop mode on)11)

Program function (64 programs, 200 steps)
Setting of
Span setting: 0 to 1100nm,Number of averaging setting: 1 to 999 times,Automatic measuring condition setting function,Sweep between line markers function, 0nm sweep function,

External trigger measurement function,

Air/Vacuum wavelength measurement function

  1. With 9.5/125μm SMF, after 1 hour warm-up, after optical alignment
  2. At 15 to 30 °C
  3. At chop mode off
  4. Horizontal scale: wavelength display mode
  5. At 23 ± 3 °C
  6. Internal chop mode available at HIGH1 to 3 sensitivity settings
  7. With applied input fiber Type B1.1 9.5/125μm SMF defined on IEC60793-2 (Mode field diameter: 9.5μm,
    NA: 0.104 to 0.107, PC polished), attenuation off, vertical scale: absolute power display mode
  8. Sensitivity setting is MID, HIGH1 to 3 and chop mode off
  9. Sensitivity setting is HIGH3 and chop mode on
  10. For wavelength resolution 0.2nm
  11. For wavelength resolution 0.5nm
  12. Please ask local agent for printer type.
  13. AQ9441 universal adapter (optional) is required for the output port of the reference light source (specify
    FC, SC or ST for connector type).
  14. *: Connector type. Specify FC, SC or ST connector.
  15. Except protector


Specifications cnt’d
Display Level scale setting: 0.1 to 10dB/div.,
Vertical division number setting: 8, 10 or 12,
Ref. level position setting function, Linear scale display,
Simultaneous display of 7 independent traces,
Data table display, Label display, Split display,
Normalized display, Curve-fit display,
Display Power density display, % display, dB/nm display,
dB/km display, Template display, Horizontal scale zoom
in/out display, Frequency display of horizontal axis scale
Trace 7 independent traces, Max./Min. hold,Calculate between traces,Roll average, Normalize, Curve-fit
Marker/Search Delta marker (Max. 1024), Line marker, Peak search,
Next peak search, Bottom search, Next bottom search,
Auto search, Peak/Bottom search between line markers,
Search in the zooming area
Analysis WDM analysis, EDFA analysis, Optical filter analysis,
WDM filter analysis, Spectral width, Notch width,
SMSR analysis, PMD analysis, LED/FP-LD/DFB-LD
analysis, Power analysis, Go/NoGo judgment,
Auto analysis, Analysis between line markers,
Analysis in the area
Ethernet TCP/IP Protocol, FTP function
External printer1) ESC/P
Others2) Self wavelength calibration with built-in reference light sourceOptical alignment with built-in reference light source
Build-in FDD3.5-inch 2HD) MS/DOS format
Internal memory 32 traces, 20 programs
File format Binary/CSV(Text), BMP/TIFF
Remote control AQ6317 Series compliant commands (IEEE488.1),
IEEE488.2 full support
Others GPIB x 2, RS232C, Printer port, External SVGA, PS/2 x 2, LAN
Display 10.4-inch color LCD (Resolution: 800 x 600 dots)
Printer Built-in high-speed thermal printer
Optical connector3) AQ9447 (*) connector adapter: optional
Power requirement 100 to 240 (±10%) V, 50/60Hz, approx. 400VA
Environmental conditions Operating temperature: +5 to +40°CStorage temperature : -10 to +50°CHumidity: 80%RH or less (no condensation)
Dimensions & mass4) Approx. 425 (W) x 222 (H) x 500 (D) mm, 33kg
Accessories Power cord: 1,printer paper: 1instruction manual: 1
  1. Please ask local agent for printer type.
  2. AQ9441 universal adapter (optional) is required for the output port of the reference light source (specify FC, SC or ST for connector type).
  3. *: Connector type. Specify FC, SC or ST connector.
  4. xcept protector

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