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(1260-1680 nm)



Santec has used an innovative cavity design to lower the optical ASE noise, resulting in an extraordinarily high signal-to-noise ratio of over 90 dB/0.1 nm, while also maintaining a high output power of over +10 dBm. 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 multi-port power meters (MPM-series) and dedicated software.



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



The TSL-550 has two separate versions:

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

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



  • 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 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.


Premium Performance Tunable Laser TSL-710

The TSL-710 is Santec’s premium performance tunable laser. 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 High Performance Tunable Laser System

The Full-band TSL is a full-band, high performance tunable laser system that covers the ultra-wide tuning range of 1260 to 1680 nm (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! Multi-Port Optical Power Meter MPM-210/MPM-211, 212, 213

The MPM-210/MPM-211, 212, 213 is a multi-port optical power meter that is perfect for measuring the optical characteristics of multi-port optical devices.