AKA0000CE2

Acousto-Optic Devices
Acousto-Optic Light Deflectors
Type: EFLD
Acousto-Optic Light Deflector deflects laser beam
by using shear-mode acoustic waves travelling in a
single crystal of tellurium dioxide (TeO2), whereby flat
frequency response and light deflection characteristics
of high diffraction efficiency are obtained with low
driving power. Panasonic’s unique system is employed
for this deflector, thus eliminating the need for an optic
phase plate even for two dimensional deflection, and
simplifying the optical system.
Features
● Low
driving power (0.5 to 1 W)
density of resolvable spots (160 to 750 spots)
● High diffraction efficiency (over 80 [email protected] nm)
● Wide deflection angle (over 2.7 °@633 nm)
● RoHS compliant
● High
Recommended Applications
● Laser
scanner
microscope
● Electrical spectrum analyzer
● Laser
Principle
Light Deflectors
TeO2 crystal
Incident
laser
beam
Absorber
f2
f1
<110>
} diffracted light
0 th diffracted light
<001>
Acoustic wave
Transducer
f1 to f2
Oscillator
Explanation of Part Numbers
1
2
3
4
E
F
L
D
Product Code
5
6
7
Characteristics
(Number of Resolvable
Spots)
8
9
10
Design No.
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
00 Dec. 2014
Acousto-Optic Devices
Ratings and Characteristics
Part No.
Item
EFLD250
EFLD250A
AO Medium
EFLD250C
EFLD250R
TeO2
Optical Wavelength: l (nm)
633
488 to 515
442 to 458
760 to 840
250 min.
250 min.
250 min.
160 min.
5.3
5.4
5.4
4.5
3.5×3.5
3.5×3.5
3.5×3.5
3×3
Acoustic Velocity: u (m/s)
660
650
650
660
Center Frequency: f (MHz)
75
90 (l=515 nm)
100 (l=488 nm)
103 (l=458 nm)
108 (l=442 nm)
55
Deflection Bandwidth (–3 dB): Δ f (MHz)
50 min.
50 min.
50 min.
36 min.
Maximum Diffraction Efficiency (%)
80 min.
80 min.
70 min.
75 min.
Maximum Driving Power (W)
0.6
0.5
0.5
1.0
Deflection Angles: Δ q (deg.)
2.7 min.
2.2 min.
2.0 min.
2.5 min.
Optical Transmittance (%)
94 min.
92 min.
90 min.
90 min.
Number of Resolvable Spots (Spots)
Access Time (μs)
Maximum Beam Dimensions: H×W (mm)
Input Impedance (Ω)
50 (nominal)
Laser Polarization
Linear (Horizontal to the base: E Vector)
Part No.
Item
EFLD750
EFLD750A
AO Medium
Optical Wavelength: l (nm)
Number of Resolvable Spots (Spots)
Access Time (μs)
EFLD750C
EFLD750R
TeO2
633
488 to 515
442 to 458
760 to 840
750 min.
750 min.
750 min.
540 min.
15.2
15.4
15.4
15.2
Maximum Beam Dimensions: H×W (mm)
3×10
Acoustic Velocity: u (m/s)
660
650
650
660
Center Frequency: f (MHz)
75
90 (l=515 nm)
100 (l=488 nm)
103 (l=458 nm)
108 (l=442 nm)
55
Deflection Bandwidth (–3 dB): Δ f (MHz)
50 min.
50 min.
50 min.
36 min.
Maximum Diffraction Efficiency (%)
80 min.
80 min.
70 min.
75 min.
Maximum Driving Power (W)
0.6
0.5
0.5
1.0
Deflection Angles: Δ q (deg.)
2.7 min.
2.2 min.
2.0 min.
2.5 min.
Optical Transmittance (%)
94 min.
92 min.
90 min.
90 min.
Input Impedance (Ω)
Laser Polarization
50 (nominal)
Linear (Horizontal to the base: E Vector)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
00 Dec. 2014
Acousto-Optic Devices
Dimensions in mm (not to scale)
Type EFLD250
Type EFLD750
Aperture f6
30.4
Aperture
45
53
20.4
21
10.2
Base
32
15
Connector(SMA)
4-M2.6(ISO)
Depth4
f3 Depth4
20.4
25.0±0.1 10
32
45
53
14.0±0.1
f3 Depth4
14.0±0.1
Base
21
10.2
5
30.4
connector(SMA)
4-M2.6(ISO)
Depth4
25.0±0.1 10
■ Please contact the factory for packaging methods.
Diffraction Efficiency
Type EFLD750
Diffraction Efficiency(%)
Typical Characteristics
45
75
Frequency(MHz)
105
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
00 Dec. 2014
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