LLTF CONTRAST - Laser Line Tunable Filter

Photon etc.

OVERVIEW

The Laser Line Tunable Filter (LLTF) is a non-dispersive tunable bandpass filter based on volume holographic gratings. It delivers the highest signal throughput in the industry, and is also unique in that it combines very high optical density (> OD6) and outstanding out-of-band rejection with wide tunability.

A single filter can be tuned from 400 nm to 1000 nm (VIS) or 1000 nm to 2300 nm (SWIR), with bandwidths (FWHM) of <2.5 nm and <5 nm respectively. Custom and extended spectral ranges (up to 2500 nm) and bandwidths (sub-nm) are also available. Photon etc’s LLTF can be coupled with a supercontinuum laser to provide a Tunable Laser Source (TLS).

For more details on our plug and play filter watch this video.

We offer the following models of Laser Line Tunable Filters:

CONTRAST-SR-VIS
Spectral Range: 400-1000 nm
Bandwidth: < 2.5 nm

CONTRAST-SR-SWIR
Spectral Range: 1000-2300 nm (2500 nm optional)
Bandwidth: < 5.0 nm

CONTRAST-EXT IV
Spectral Range: 400-2300 nm (2500 nm optional)
Bandwidth: 400-1000 nm, < 2.5 nm 1000-2300 nm, < 5.0 nm

CONTRAST-X
Spectral Range: Custom
Bandwidth: 0.15 - 0.9 nm

SPECIFICATION

Central Wavelength: 1350 nm
Bandwidth (FWHM): <2 or <5 nm
Peak Transmittance: 65 %
Initial Wavelength: 400 nm
Final Wavelength: 2300 nm
Maximum Input Power: 20 W
Input Beam Diameter: 5 mm
Input Beam Divergence Requirement: <1 mrad
Optical Density (OD): > OD6 (measured at 1064 nm)
Dimensions (L X W X H): 9 x 6.3 x 6.7 (inches), 23 x 16 x 17 (cm)

Download Data Sheet

Applications

- Detector and Instrument Calibration
- Photoluminescence
- Reflection/Absorption Spectroscopy
- Steady-State Pump-Probe Experiments
- Hyperspectral Imaging

KEY FEATURES

LLTF Contrast series Laser Line Tunable Filters feature the following key attributes

- Fiber optic input/output
- Harmonic filter
- Background supressor
- Alignment kit (for free space)

See attached Datasheet for more details on the accessories and options.

Lasers

Laser Systems

Incoherent Light Sources

Particle and Quantum Sources

Optics

Fiber Optics

Optical Systems

Opto-Mechanics

Motion Control

Non-Contact Inspection

Light Analysis

Spectral Analysis

Imaging and Vision

LLTF CONTRAST - Laser Line Tunable Filter

OVERVIEW

SPECIFICATION

Applications

KEY FEATURES

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