LLTF Tunable High Contrast Filter
The LLTF Contrast is a continuously tunable high-resolution bandpass filter that effectively converts an NKT Photonics’ supercontinuum source into a widely tunable picosecond laser. The filter transmits - with high efficiency - a single laser line while blocking unwanted lines with excellent out-of-band suppression.
The LLTF Contrast is a continuously tunable high-resolution bandpass filter that effectively converts an NKT Photonics’ supercontinuum source into a widely tunable picoseconds laser.
Covers the spectrum from visible to infrared
The LLTF Contrast is a non-dispersive filter maintaining the intrinsic single-mode beam quality of the supercontinuum laser enabling a wide range of applications. With two wavelength tuning options, Visible and NIR, the full spectrum of the supercontinuum can be covered.
Adapts directly to the output collimator
The LLTF Contrast is compatible with all NKT Photonics Supercontinuum lasers and is fully plug-and-play – adapting directly to the supercontinuum output collimator.
The output of the LLTF Contrast is compatible with SuperK CONNECT and SuperK Fiber deliveries (we recommend FD7 for VIS and FD8 for SWIR).
User-friendly interface
The LLTF can be operated through a user-friendly PHySpec software or a direct interface through the free software development kit.
Features
Single channel tunable band-pass filter
Exceptional out-of-band suppression
Narrow line-width and high resolution
Wideband tuning range across the visible and near-infrared range
Simple and intuitive user interface
Robust and compact industrial design
Maintenance-free 24/7 operation
Wavelength range
Spectral Bandwidth
Max. Power
VIS HP8
400-1000 nm
< 2.5 nm
8 W
SWIR HP8
1000-2300 nm
< 5.0 nm
8 W
VIS HP20
400-1000 nm
< 2.5 nm
20 W
SWIR HP20
1000-2300 nm
< 5.0 nm
20 W
Optical
Tunable Wavelength Range
400 - 1000 nm
1000 – 2300 nm
Channel Spectral Bandwidth (FWHM)
1.0 - 2.5 nm
2.0 - 5.0 nm
Out of Band suppression
60 dB @ ±40 nm
60 dB @ ±80 nm
Typical Transmission Efficiency
65%
Optical Density (OD)
> OD6 (measured at 1064 nm)
Damage Threshold
< 5 GW/cm2 peak power @ 1064 nm, 8 ns
Input Aperture Diameter
5 mm
Input Beam Divergence Requirement
< 0.45 mrad
Wavelength Resolution (Relative)
FWHM / 8
Pointing Stability
< 1 mm lateral displacement @ 1 m from filter
Scanning speed (multiple step)
35 ms stabilization time for 0.1 nm step45 ms stabilization time for 0.2 nm step
55 ms stabilization time for 1 nm step
60 ms stabilization time for 2 nm step
65 ms stabilization time for 5 nm step
70 ms stabilization time for 10 nm step
Interface
Graphical User Interface via USB 2.0
(optional SDK)Interlock
Integrated
Dimensions (W x L x H mm)
172 x 278 x 174
商品属性 [波长] 400-1000 nm