AOTF1110-VB-H
Variable Bandwidth AO Tuneable Filter
SOLID STATE
FAST ACCESS TIME
MINIMAL CHROMATIC DEFLECTION
VARIABLE BANDWIDTH
The AOTF-VB range of acousto-optic tuneable filters, are designed for use with broadband light sources and analytical imaging systems. The transmission characteristic of these solid state filters is controlled by the applied RF drive signal. The RF frequency defines the tuned wavelength of the diffracted light, whereas the signal amplitude defines the diffracted light intensity. The filter bandwidth is independently selected by enabling one or more of the four filter transducer electrodes via a compatible multi-output RF driver/amplifier.
For horizontal input polarization, the crystal geometry is designed to minimize chromatic beam deflection of the +1st output.
Our high quality, Isomet-grown off-axis tellurium dioxide (Te02) is utilised as the interaction material. The AOTF design can be customized to suit various wavelength ranges and bandwidths.A typical visible device specification is described overleaf.
Suitable drive electronics:
iHSA-4 Combined frequency synthesizer and RF driver
Specifications
Aperture (H)
‘-VB-8’, 8mm x 8mm or ‘-VB-10’, 10mm x 10mm
Operating range
400 – 700nm
Input Acceptance Cone angle
5.7° nominal
Switching speed
< 1usec per mm beam dia.
Static insertion loss
< 5%
Diffraction efficiency
> 80% / line
Separation Angle
3° nominal
Wavelength (nm)
457
488
Frequency (MHz)
78.5
71.5
Channels driven
1
2
3
4
1
2
3
4
3dB Bandwidth (nm)
17.6
8.9
6.1
4.7
24.8
11.6
7.7
5.8
Drive Power per ch
510
180
100
60
690
200
110
70
Wavelength (nm)
514
633
Frequency (MHz)
66
50.5
Channels driven
1
2
3
4
1
2
3
4
3dB Bandwidth (nm)
29.8
14
9.4
7
64
29
19.3
15.3
Drive Power per ch
800
210
120
65
950
600
270
160
商品属性 [波长] 457/488/514/633nm [活跃孔径] 8mm x 8mm /10mm x 10mm [操作频率] 78.5/71.5/66/50.5MHz