Tunable Lasers comparison

Tunable Laser (Essential model)

TSL-550_image The TSL-550 is a high performance tunable laser with a wide tuning range and an output combining 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.


See ultimate model:TSL-770

See premium model:TSL-710


Select any Band(1260-1680nm)



Santec has used an innovative cavity design to lower the optical ASE noise, resulting in an extraordinarily high signal-to-noise ratio of over 90dB/0.1nm, while also maintaining a high output power of over +10dBm. The TSL-550 is ideal for next generation components testing driven by innovations in Dense Wavelength Division Multiplexing (DWDM), passives and Wavelength Selective Switches (WSS) that require characterization of multi-input,high extinction ratio devices. The TSL-550 is designed to improve production inspection throughput by doubling the scan repetition rate over conventional lasers. In addition, the TSL-550 is available for WDL and PDL measurement with the support of our power meter, MPM-200 and dedicated software.



  • Wide tuning range within 1260-1680nm
  • High output power +10dBm
  • High signal-to-noise ratio 90dB/0.1nm
  • High wavelength accuracy
    (Type A: ±20pm, Type C: ±5pm)



The TSL-550 has two separate versions:

Type A : standard wavelength accuracy version with ±20pm wavelength accuracy
Type C : high wavelength accuracy version with ±5pm wavelength accuracy

Wavelength ranges
  • 1260-1360nm
  • 1355-1485nm
  • 1480-1630nm
  • 1500-1630nm
  • 1560-1680nm



  • Optical component characterization
  • Fiber optic transmission testing
  • Photonic material characterization
  • Interferometry
  • Optical spectroscopy

Application Example / Please refer here for details. ->Swept Test System

The TSL-550 high performance tunable laser source is applicable for wavelength characterization synchronizing with other suppliers’ optical power meter or optical spectrum analyzer. The measurement support software is also available for quick set-up of measurement parameters.

The software supports the following instruments:

    • santec MPM-200 optical power meter
    • Agilent 816xA/B, N774xA optical power meter
    • Yokogawa AQ2200 series optical power meter,
      AQ6317x, AQ6319, AQ6370x etc optical spectrum analyzer
    • dBm Optics component spectrum analyzer
    • Fiberpro CA3000 component spectrum analyzer
      ……and other




Optical Spectrum

–High Output Power & High Signal-to-Noise Ratio–


Related Products


NEW! All-new 7th generation High Performance Tunable Laser TSL-770

The TSL-770 is Santec’s Ultimate tunable laser. A ground up redesign of the laser resonator and control electronics make the TSL-770 our fastest tuning, widest scanning, lowest noise and narrowest linewidth laser ever. learn_more_text


Premium Performance Swept Wavelength Tunable Laser TSL-710

Combining high output power with high signal-to-noise ratio makes the TSL-710 an invaluable tool for optical testing.

 Full-band TSL

Full-band TSL

The Full-band TSL is a full-band, high performance tunable laser system that covers the ultra-wide tuning range of 1260 to 1680nm (O-band to U-band).


Swept Test System

The Santec Swept Test System has been developed to streamline photonic testing, providing a complete solution where high-speed analysis with high resolution and accuracy is key.


NEW! MPM-210/MPM211,212,213

santec’s Multi-Port Optical Power meter (up to 20 port)