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  • TSL-770

Ultimate Performance Tunable Laser

Our highest accuracy, fastest tuning, lowest noise, and narrowest linewidth laser.

  • 200 nm/s Rapid Sweep
  • Linewidth <60 kHz
  • <1/10 Frequency Fluctuation (vs. conventional model)
  • Fine tuning scan range 10 GHz
  • 1480 to 1640 nm
TSL 770


Santec has brought all its experience and knowledge gained over the past 30 years to its all-new 7th generation tunable laser.

The TSL-770 is a very high specification tunable laser with flexibility in operation to ensure suitability for a wide range of applications.

A ground up redesign of the laser cavity together with ultra-low noise electronics combine to provide market leading scan speed, high optical power, wide tuning range, low noise, and narrow linewidth in the same laser.

The new proprietary cavity design enhances Q-factor and wavelength stability enabling accurate measurements in even the most cutting-edge research applications.


TSL 770 Introduction Video

3min watch
Wide Operating Ranges and Spectrums
Wide Tuning Range

Isolated drive mechanism allows for mode-hop-free tuning range of 160 nm

High S/N and High Power

90 dB/0.1 nm S/N while still maintaining high output power of +13 dBm

Built-in High Performance Wavelength Meter

Wavelength accuracy of +/-2 pm with logging when in sweep mode

Narrow linewidth & low jitter

Isolated optical cavity results in linewidth < 60kHz and high wavelength stability

Features & Characteristics

  • Wide tuning range from 1480 to 1640 nm
    If you require a different wavelength range, please refer to the TSL-550 which offers more wavelength ranges, with options from 1260 to 1680 nm.
  • Mode-hop-free with rapid sweeps up to 200 nm/s
  • High output power >+ 13 dBm
  • High signal-to-noise ratio >90 dB/0.1 nm
  • High wavelength accuracy 0.3 pm(typ.)
  • Narrow linewidth <60 kHz

Typical Data

High SN/High power

Wide tuning range

Wide tuning range

High SN/High power

Narrow Linewidth

Narrow Linewidth


  • 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
  • Quantum dots

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