Evolution of the Tunable Laser

Essential Tunable Laser


Our best-selling tunable laser for all applications from laboratory to factory.

  • Wide Variety of Wavelength Options from 1260 to 1680 nm
  • High Output Power + 13 dBm
  • High Signal-to-Noise Ratio: 90 dB/0.1 nm



Our TSL-550 is a high performance tunable laser with selectable tuning range, featuring both high power and high signal-to-noise ratio. The mode-hop-free tuning TSL-550 is equipped with features such as fine tuning and coherence control making it a must have tool for precision optical testing. The TSL-550 is available for WDL and PDL measurement with our multi-port power meters (MPM series), a polarization control unit (PCU-100) and dedicated software. (Swept Test System)


  • High output power: + 13 dBm
  • High signal-to-noise ratio: 90 dB/0.1 nm
  • High wavelength accuracy:
    - Type A: standard wavelength accuracy version with ± 20 pm wavelength accuracy
    - Type C: high wavelength accuracy version with ± 5 pm wavelength accuracy

  • Wide tuning range: from 1260 to 1680 nm
    - O-Band      1260 to 1360 nm
    - ES-Band    1355 to 1485 nm
    - SCL-Band  1480 to 1630 nm
    - CL-Band    1500 to 1630 nm
    - U-Band      1560 to 1680 nm

Optical Spectrum
-High Output Power & High Signal-to-Noise Ratio-
Wide tuning range


  • Optical characterization of components and modules:
    - Tunable Filters, Interleavers, Fiber Bragg Gratings, Couplers, Splitters, Isolators, Switches, etc
    - WSS and Wavelength Blockers
    - DWDM components
  • Silicon photonic material characterization, including micro-cavity ring resonators
  • Spectroscopy
  • Interferometry

    Please refer to here for details. -> Swept Test System


- Brochure -
TSL-550 (English)
- Operation Manual -
If you require an operation manual, please download from here.
- Control Software -
If you require a GUI software and the driver, please download from here.

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