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  • TSL-570

High Performance Tunable Laser

A tunable laser that achieves both fast scans and high stability.

  • 200 nm/s rapid sweep
  • Excellent accuracy (+/- 2 pm) & resolution (0.1 pm)
  • Sealed cavity ensures stability for every wavelength
  • Wide Variety of wavelength options from 1240 to 1680 nm
  • Fine tuning scan range 10 GHz
TSL 570


Santec’s all new TSL-570 capitalizes on Santec’s 33 years’ experience in tunable laser manufacture. The TSL-570 is a high performance tunable laser with a wide tuning range and an output combining high power and high signal-to-noise ratio. It uses a new optical cavity design with precise speed control up to 200 nm/s and sub-picometer resolution and accuracy.

Tunable lasers are used extensively in photonics; for optical component characterization, photonic integrated circuit testing, quantum photonics, spectroscopy and sensors. Santec’s TSL-570 is a high specification, full feature instrument suitable for all applications. It has a simple to use touch panel display as well as Ethernet, GPIB and USB interfaces for remote control. A Wake-on-LAN (WoL) feature provides convenience for remote installations. Models are available to cover from 1240 to 1680 nm with output powers up to 20 mW.

A new sealed laser cavity is mode-hop-free and provides a stable output at every wavelength. It has 0.1 pm resolution, sub-pm accuracy and a market leading, 90 dB/0.1 nm, ultra-low level of spontaneous source emission. The TSL-570 integrates seamlessly with Santec’s optical power meters (MPM series), optical switches (OSU series) and polarization controllers (PCU series) creating benchmark, turn-key solutions for wavelength dependent loss (WDL) and polarization dependent loss (PDL) measurements (Swept Test System).


Santec Tunable Laser TSL-570 Introduction

3 minute watch

TSL-570 Basic Operation

4.5 min watch
Wavelength Stability

State-of-the-art wavelength stability under temperature changes

Rapid Sweep Technology

Precise speed control up to 200 nm/s with high accuracy

Wavelength Resolution and Accuracy

0.1 pm resolution and sub-pm wavelength accuracy

Market Leading S/N and SSE

90 dB/0.1 nm Signal-to-Noise Ration and ultra-low level of SSE

Fine Tuning Scan Range

Scan range tuning as small as 10 GHz

Features & Characteristics

1. Output power: 

+ 13 dBm

2. Signal-to-noise ratio: 

90 dB/0.1 nm

3. Wavelength accuracy:

- Type A: ±20 pm wavelength accuracy

- Type C: ±5 pm wavelength accuracy

- Type P: ±2 pm wavelength accuracy

4. Wide tuning ranges covering 1240 to 1680 nm

- Ext O-Band 1240 to 1380 nm

- O-Band * 1260 to 1360 nm

- ES-Band * 1355 to 1485 nm

- Ext ES-Band 1355 to 1505 nm

- CL-Band * 1500 to 1630 nm

- SCL-Band 1480 to 1640 nm

- U-Band * 1560 to 1680 nm

* Not available in Type P

Typical Data

Optical Spectrum

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

Optical Spectrum

Wavelength vs. Output power

- Wide Wavelength Range -

- Wide Wavelength Range -

Wavelength accuracy

Wavelength accuracy


  • 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 waveguide characterization, including micro-cavity ring resonators
  • Spectroscopy
  • Interferometry

Please refer to this link for details. -> Swept Test System
Please refer to this link for details. -> Customer feedback

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