OG-V OG-V 开关时间可调脉冲选择器

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Electrooptic crystal

DKDP

BBO

RTP or KTP

Operational wavelength range (standard models)

510-540 nm / 700-1000 nm / 1000-1100 nm / 1250 nm

510-540 nm / 700-1000 nm / 1000-1100 nm / 1250 nm

1000-1100 nm / 1500-1600 nm / 1550+780 nm

Possible custom wavelengths

from 340 to 1280 nm

from 200 to 2200 nm

from 1000 to 2700 nm 

Minimum repetition rate of picked pulses

single-shot

Maximum repetition rate of picked pulses (standard models)

1 kHz

3 kHz / 10 kHz / 50 kHz / 100 kHz

3 kHz / 10 kHz / 50 kHz / 100 kHz / 200 kHz / 1 MHz

Clear aperture

6 mm

6 mm (up to 20 mm upon request)

2.5 mm (up to 5 mm upon request)

3.5 mm (up to 10 mm upon request)

HV pulse (gate) shape

bell-shaped

HV pulse (gate) length
(at level 10%)

3 ns

8 ns

Rise time
(at level 10-90%)

700 ps

3.5 ns

Fall time
(at level 90-10%)

2 ns

3.5 ns

Contrast⁽¹⁾

>1500:1

>700:1

>800:1

Pockels cell voltage

up to 10 kV

up to 4 kV

up to 3 kV

Optical scheme

half-wave
(quarter-wave upon request)

half-wave/quarter-wave at λ<600 nm; at λ>600 nm - quarter-wave or half-wave with double crystal cell

half-wave
(quarter-wave upon request)

Trigger

internal/external

Complete system transmission at central wavelength

>85% (PC + two Glan-Taylor prisms, default package)
>90% (PC + a Glan-Taylor and a Rochon prism, upon request)
>98% (Pockels cell only) 

Input optical train repetition rate

2 MHz …150 MHz with internal or external trigger with optical or electric sync to input train; 1 Hz…2 MHz only with external trigger signal⁽²⁾

Sync source for internal trigger mode

optical/electric

Additional control modes

by edge / by level / built-in burst generator with internal or external trigger

Channel delay time

0...10 us (up to 1 ms upon request)⁽³⁾

0...1 us (up to 5 us upon request)⁽³⁾

Cooling

passive at up to 3 kHz output rate, water-cooled⁽⁴⁾ at 10 kHz and higher

(1) - energy ratio of a picked and any non-picked pulse. The given contrast values are valid for adjacent pulses;
(2) - when operating with 1 Hz…2 MHz input pulse train, an external trigger signal must be used. Such a signal must lead the optical pulse by 0.25-3 us, must be rigidly in sync with the pulse to be picked and must have jitter of less than 200 ps;
(3) - maximum channel delay time is defined by maximum repetition rate of picked pulses and cannot exceed the temporal distance between adjacent pulses at this frequency;
(4) - the HV generator unit requires cooling to support operating temperature below 35°C. Water cooling is required when operating at output frequency of 10 kHz and more (water flow 1 L/min, water temp. 20-22°C, tap or building-scale supply may be also be used if permitted). Heating power to be dissipated does not exceed 80 W even at the highest frequencies (a water chiller is not included and may be supplied separately);