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Technology

  • Tunable sources and filters

Fields

  • Life Science
  • Material Science

Tunable Laser Source

The TLS combines NKTP’s supercontinuum lasers and Photon etc.’s LLTF. This continuously tunable laser source has both a high spectral power density and spectral resolution over a wide range of wavelengths (400 to 2500 nm).

Thanks to NKTP’s wide selection of SuperK lasers and Photon etc.’s customizable LLTFs, many TLS configurations are possible.

TLS Application Overview

  • Spectroscopy: pump-probe, PL, PLE, LBIC, etc.
  • Hyperspectral darkfield and luminescence imaging
  • Photodetector calibration
  • Reflectance measurments of tissue for cancer research

Product Specifications

Technical Specifications
CONTRAST-SR-VIS CONTRAST-SR-SWIR CONTRAST-EXT IV CONTRAST-X
Spectral range 400-1000 nm 1000-2300 nm (2500 nm optional) 400-2300 nm (2500 nm optional) X represents a custom spectral range
Bandwidth (FWHM) < 2.5 nm < 5.0 nm 400-1000 nm, < 2.5 nm | 1000-2300 nm, < 5.0 nm 0.15 - 0.9 nm
Out-of-band rejection <-60dB@±40nm, <-30dB@±10nm <-60dB@±80nm, <-30dB@±20nm <-60dB@±40nm, <-30dB@±10nm | <-60dB@±80nm, <-30dB@±20nm Depends on the bandwidth
Peak efficiency Typically around 65% Typically around 65% Typically around 65% Typically around 65%
Optical density (OD) > OD6 (measured at 1064 nm) > OD6 (measured at 1064 nm) > OD6 (measured at 1064 nm) TBD
Input beam divergence requirement (full angle) < 1.5 mrad < 1.5 mrad < 1.5 mrad < 1.5 mrad
Scanning speed (multiple step) 20 ms stabilization time for 0.01 nm step, 20 ms stabilization time for 0.1 nm step, 20 ms stabilization time for 0.2 nm step, 25 ms stabilization time for 1 nm step, 28 ms stabilization time for 2 nm step, 35 ms stabilization time for 5 nm step, 50 ms stabilization time for 10 nm step 20 ms stabilization time for 0.01 nm step, 20 ms stabilization time for 0.1 nm step, 20 ms stabilization time for 0.2 nm step, 25 ms stabilization time for 1 nm step, 28 ms stabilization time for 2 nm step, 35 ms stabilization time for 5 nm step, 50 ms stabilization time for 10 nm step 20 ms stabilization time for 0.01 nm step, 20 ms stabilization time for 0.1 nm step, 20 ms stabilization time for 0.2 nm step, 25 ms stabilization time for 1 nm step, 28 ms stabilization time for 2 nm step, 35 ms stabilization time for 5 nm step, 50 ms stabilization time for 10 nm step 20 ms stabilization time for 0.01 nm step, 20 ms stabilization time for 0.1 nm step, 20 ms stabilization time for 0.2 nm step, 25 ms stabilization time for 1 nm step, 28 ms stabilization time for 2 nm step, 35 ms stabilization time for 5 nm step, 50 ms stabilization time for 10 nm step
Options & Accessories
CONTRAST-SR-VIS CONTRAST-SR-SWIR CONTRAST-EXT IV CONTRAST-X
Enhance SWIR N/A Up to 2500 nm Up to 2500 nm Up to 2500 nm
Fibered output An X-Y-Z translation adjustment allows coupling optimization An X-Y-Z translation adjustment allows coupling optimization An X-Y-Z translation adjustment allows coupling optimization An X-Y-Z translation adjustment allows coupling optimization
Harmonic filter Blocks the harmonics coming from the region 400-500 nm Blocks the harmonics coming from the regions 500-850 nm and/or 850-1150 nm Blocks the harmonics coming from the regions 400-500 nm and/or 500-850 nm and/or 850-1150 nm The filter is chosen according to the spectral range
Alignement kit In free space configuration (input/output),the alignment kit allows the user to rapidly find the correct alignment In free space configuration (input/output),the alignment kit allows the user to rapidly find the correct alignment In free space configuration (input/output),the alignment kit allows the user to rapidly find the correct alignment In free space configuration (input/output),the alignment kit allows the user to rapidly find the correct alignment

Publications

White Papers

Abstract

The Laser Line Tunable Filter (LLTF) is a non-dispersive, widely tunable bandpass optical filter. At its core lies a volume Bragg grating (VBG) which efficiently selects and filters all but a narrow spectral window from a broadband light source. The LLTF provides a wider tunable range than other commercially available tunable filters. A single filter has the potential to offer full continuous…

Widely Tunable Filter: Technology & Measurement of Critical Specifications

Authors Daniel Gagnon and Laura-Isabelle Dion-Bertrand

Abstract

The out-of-band rejection and the optical density (OD) are two critical specifications of tunable filters. Unfortunately, these properties are often misinterpreted and their definitions tend to differ from one manufacturer to another. End users need to be careful when looking over the specifications of a filter. Also, the measurement of these properties for customers can be laborious. One needs…

Custom products

Beyond our standard product lines, we bring to bear our know-how through collaborations with industry and researchers both local and international. It’s in our DNA to build systems that measure up to the high standards set by our customers in science and industry. Please contact us if you don’t see what you are looking for in our standard lines of products.

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