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Electro-Optic Deflector
- High quality
- Great Accurancy
- Advanced manufacturing methods
- Durable
PRODUCT DESCRIPTION
ST Series electro-optic deflectors are the most efficient mechanisms for changing the angle of a laser beam. EOD can scan a laser beam over a range of angles, or control the output angle of a laser beam with great accuracy. We employ a quadrapole electric field in an electro-optic material to produce a linear refractive index gradient proportional to the applied signal voltage.
Specifications of EODs:
Model |
ST310A |
ST311A |
ST312 |
ST312-2 |
ST412-2Axis |
Aperture (mm) |
2.5 |
2.5 |
2.7 |
2.7 |
2.0 |
Deflection efficiency |
1.5urad/volt |
3.0urad/volt |
0.6urad/volt |
1.2urad/volt |
4urad/volt |
Capacitance (pF) |
100 |
185 |
50 |
100 |
40 |
Standard Spectral Range |
400-750nm |
400-750nm |
400-1100nm |
400-1100nm |
700-1000nm/ 1000-2000nm |
Length (mm) |
118 |
219 |
71 |
125 |
110 |
UV/DUV Options |
Yes |
Yes |
Yes |
Yes |
No |
Collinear Configuration |
NA |
Center In/ Center Out |
Center In/ Center Out |
Center In/ Center Out |
Center In/ Center Out |
Specifications of Amplifiers:
Model |
ST302RM |
Cabinet |
Driver and power supply in single cabinet |
Test feature |
Built-in test feature allows testing for max transmission of Pockel Cell without adjusting bias voltage |
Input impedance |
Choice of amplifier input impedance by rear panel switch (50ohm/1K ohm) |
DC Bias |
Improved DC biasing of Pockel Cell provides greater linearity at higher bias voltages. |
Voltage range |
+/- 450VDC controlled by ten-turn front panel pot. Digital meter monitors differential bias applied to E.O. Modulator |
Linearity |
10bits referenced to full scale (.1%) |
Bandwidth |
DC-200kHz with 90pF load and 3M (RG-62) cables. |
Max output drive level |
750Vpp into 90pF load |
Amplifier input signal |
2Vpp max into 50/1k ohm delivers 750Vpp out |
Input signal format |
Options include Unipolar positive, negative or bipolar |
Input power (AC) |
60W typical, both load(modulator) & frequency dependent |
Dimensions |
19” rack mountable, 5.25”H(133mm)(3U)x14”D(356mm) |
Cooling |
Forced air |
Operating environment |
Laboratory(indoor only), +5-+50°C, RH20-80% |
Weight |
20lbs (9.07kg) |
Model |
ST412 2-axes |
ST25D |
Cabinet |
Driver and power supply in single cabinet |
Driver and power supply in single cabinet |
Input impedance |
Choice of amplifier input impedance by rear panel switch (50ohm/1K ohm) |
50ohms |
Gain |
375V/V Each Amplifier |
+/- 400vDC |
Max output drive level |
750V P-P, each amplifier, driving 60pf load, 3m RG-62 cables |
175V |
Detected rise/fall time |
Typically 2.5us driving 60pf with 3m RG-62 coax |
8ns |
Input signal format |
Options include Unipolar POS/NEG or bipolar set by rear-panel slide switch |
TTL or Analog |
Input power (AC) |
Typically 70W (load and frequency dependent) |
300W |
Dimensions |
19” Rack Mountable, 5.25”H (133mm) (3U) x 14”D (356mm) |
45cm W x 44cm L x 17.5cm H |
Cooling |
Forced air |
Forced air |
Operating environment |
For laboratory use (indoor only), +5-+50°C, RH 20%-80% up to 32°C, Altitude <3000m |
Designed for laboratory use (indoor only) |
Weight |
20lbs (9.07kg) |
32lbs (14.51kg) |