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Fast Wavelength Meter

FWM8612

With the growing demand for communication data, it is necessary to have a larger capacity optical communication transmission system, which drives optical component/network equipment manufacturers to use coherent communication modules based on wavelength tunable lasers in their transmission backbone networks. At present, the wavelength tunable lasers and coherent modules will be used in MAN, or even access networks. Accurate measurement and wavelength calibration are crucial for tunable lasers. With the continuous increase of communication channels from the initial 40 waves to the current maximum 800, efficient and accurate wavelength testing is more critical than ever.


Features

  • High wavelength accuracy

    ±0.33ppm (typ: ±0.5pm) for wavelength calibration and metrology
  • Fast Test

    All-solid-state structure, non-mechanical moving parts optical design, fast test speed
  • Support broadband mode

    Accurate wavelength measurement of 96Gbaud modulated optical signals
  • Rich trigger function

    Support external or internal trigger

Features and Benefits

  • High Speed

    The FWM8612 wavelength meter is in the ordinary single sampling mode, the sampling rate can be as high as 200Hz, which is 20-100 times that of the ordinary multi-wavelength based Michelson interferometer, the power accuracy is <0.5dB, and the repeatability is <0.02dB.
  • Internal trigger sampling mode

    FWM8612 has a built-in trigger signal generator, and its fast measurement function, as shown in the figure below, triggers 1000Hz to measure the switching cycle and stability of ordinary mechanical optical switches, and can observe the transient wavelength and power information of the tunable laser.
  • External trigger sampling mode

    FWM8612 fast wavelength meter supports 5V TTL trigger level and external trigger with sampling rate up to 1000Hz. It can simultaneously measure the scanning spectrum of tunable lasers, ModeMap scanning and channel calibration of tunable lasers, and synchronous monitoring of wavelength power of pulsed lasers.
  • Broadband working mode

    High-speed modulation will make the original narrow linewidth laser (usually kHz~MHz) spectral broadening (96Gbaud modulation signal)。
  • Broadband working mode

    FWM8612 has been further optimized on the basis of the original, and finally realized the accurate wavelength measurement of 400G QAM16 (96Gbaud) signal.
Wavelength Index Wavelength Range 1250~1650nm(182~240THz)
Wavelength Accuracy ±0.33ppm (±0.5pm@1550nm)
Wavelength Repeatability ±0.07ppm (±0.1pm@1550nm)
Wavelength Stability <±0.3pm@24 Hour
Wavelength Resolution 0.1pm
Wavelength Unit Nm,cm-1,THz
Power Index Power Accuracy ±0.5dB(±30nm from 1310 and 1550nm)
Power Linearity ±0.5dB(1250–1650nm)
Polarization loss ±0.5dB(1250–1650nm)
Display Resolution 0.01dB
Unit dBm,mW
Multi-peak detection index

Minimum frequency difference between main peak and secondary peak of multi-peak detection

2300MHz

Maximum frequency difference between main peak and secondary peak of multi-peak detection

15dB
Measuring speed indicators Single Sample


Single sample~200Hz


Velocity@External Trigger External trigger 1~1000Hz
Velocity @ Internal Trigger Internal trigger 1~1000Hz
Optical signal input indicator Maximum Bandwidth 25GHz(200pm@1550nm)
Input optical signal power range -30dBm~+10dBm(8µW~10mW)
Optical Interface 9/125µm single-modefiber(FC/PC)
Optical interface return loss >35dB
Trigger Indicator Trigger Logic level TTL
External trigger Support wavelength and power synchronization trigger(1Hz~1kHz)
Internal trigger Support internal trigger frequency setting(1Hz~1kHz)

文档下载

名称
版本
发布时间
下载
  • FWM8612 Programmer’s Reference Guide
    V1.0.4
    2022-07-20
    点击下载
  • FWM8612操作说明
    V1.6
    2022-07-20
    点击下载

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