SELECTABLE BANDWIDTH TUNABLE OPTICAL FILTER
This filter can also be customized to achieve different bandwidths, wavelength ranges or any of the other specifications.
By utilizing multiple liquid crystal variable retarders and polarizers, this tunable filter allows the user to switch between any wavelength from 420 to 730 nm. In addition to the tunability of wavelength, this filter also allows the user a choice of three different bandwidth sizes at each wavelength. Selecting a wider bandwidth, one can increase the overall transmission of broadband light whereas the narrow FWHM can pass only a few wavelengths from a broadband light source.
All tunable optical filters from Meadowlark Optics come with three components: the optical head, the controller, and the software necessary to run the tunable optical filter. This software can be installed and run on any Windows based PC through either the USB or serial port while using the provided FilterDRIVE software or commands in C++, MatLab or LabVIEW.
Key Features
• Visible spectrum tuning range • Seh FWHM • ¼” -20, C-mount threads • Turnkey system included • Multiple control interface options
Comparisons of Three FWHM Settings
Typical transmission at 550 nm for different FWHM bandwidth settings.
ypical Transmission Spectra(Narrrow Bandwidth)
FWHM vs. Wavelength
The TOF-SV filter can be mounted in three different ways. There
are 8-32 and¼” -20 threads on two faces and the front face has
M3 threads for optical cage systems. An optional adapter has
C-mount threads centered around the clear aperture.
SPECIFICATIONS
Wavelength Range
420 - 730 nm
Clear Aperture Diameter
20 mm
Typical FWHM at 550nm *
12nm(Narrow); 24 nm (Medium); 39 nm (Wide)
Polarized Peak Transmission**
5 - 60%
Tuning Resolution
0.1 nm
Tuning Accuracy
FWHM/10
Field of View (Half Cone Angle)
±6°
Switching Speed
Long to Short Wavelengths
Short to Long Wavelengths
< 100 ms
< 500 ms
Temperature Range
10°C - 35°C
Laser Damage Threshold
1 W/cm2, CW; 200 mJ/cm2, 20 ns, visible; 2 J/cm2, 20 ns, 1064 nm
Out-of-Band Blocking (Average)
> OD2
Optics Head Dimensions (L x W x H)
2.50 x 3.50 x 2.08 in.
Controller Dimensions (L x W x H)
9.50 x 6.25 x 1.50 in.
Total System Weight
4 lbs.
Minimum Systems Requirements
• PC with Windows™
• USB or RS232 COM Port
• Use of LabVIEW Instrument Library requires LabVIEW version 6.1or higher
* FWHM is dependent on wavelength. Please see previous page for more information.
** Transmission is dependent on wavelength. Please see previous page for more information.
Custom versions are available.
ORDERING INFORMATION
Part Number
TOF - SV
Optical head, controller and software are included.
商品属性 [波长] 420 - 730 nm [类型] 可调谐