PCD & HV series

High repetition rate and high voltage Pockels cell drivers with energy-efficient power supplies

Ekspla’s Pockels cell drivers are optimal for BBO, RTP, KD*P, KTP, LiNbO3, CdTe Pockels cells. They can provide high voltage output pulses up to 9.8 kV, repetition rates up to 6 MHz, electrical pulse rise times as short as 5.5 ns, minimal pulse durations as low as 0 ns and maximal pulse durations with no limit.

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PCD & HV
Overview

Features

  • HV repetition rates up to 6 MHz
  • HV output pulse amplitude up to 9.8 kV
  • Electrical HV rise / fall times typically as low as 5.5 ns at 6pF load
  • HV pulse durations from 0 ns to infinity
  • Amplitude modulation of independent HV output pulses
  • Designed for BBO, RTP, KD*P, KTP, LiNbO3, CdTe Pockels cells
  • Complimentary HV power supplies for each driver version
  • Drivers can be tailored to precisely meet OEM customer’s needs
  • Fast turnaround times between inquiry, prototyping and high-volume manufacturing stages.

Applications

EKSPLA’s Pockels cell drivers are optimal for pulse picking, mode-locking, cavity dumping and q-switching of the solid state femtosecond, picosecond and nanosecond lasers. Most popular fields of applications are:

  • Industrial lasers
    micromachining, welding and cutting
  • Medical lasers
    ophthalmology, dermatology and surgery
  • Scientific lasers
    fusion research, spectroscopy, and high-energy physics

Description

Pockels cell drivers, also known a fast HV switches, are designed to load and unload capacitance of Pockels cells which serve as an integral part of electro optic modulators (EOM’s) used for pulse picking, mode-locking, cavity dumping and q-switching of solid state lasers. Ekspla’s Pockels cell drivers are optimal for BBO, RTP, KD*P, KTP, LiNbO3, CdTe Pockels cells.

Our Pockels cell drivers can provide high voltage output pulses up to 9.8 kV, repetition rates up to 6 MHz, electrical pulse rise times as short as 5.5 ns, minimal pulse durations as low as 0 ns and maximal pulse durations with no limit. All specifications are measured at 6 pF load.

Ekspla’s Pockels cell drivers require HV supply input typically equal to driver’s HV output (the only exception is PCD-FAM series drivers that allow to modulate the amplitude of each individual driver’s output pulse by analog voltage input). We provide complimentary HV power supplies for each Pockels cell driver version. For high-volume OEM customers we also tailor our Pockels cell drivers by removing excessive components to make sure products are optimal parameter, cost and size wise.

Performance

Specifications of Pockels cell drivers

DRIVER seriesPCD-UHR2PCD-UHRPCD-UHRSPCD-UHVPCD-FAM
Operating specifications
HV 1) pulse amplitude, max 2)7.2 kV3.4 kV3.6 kV9.8 kV2.5 kV
HV repetition rate
(without burst), max
3 MHz6 MHz1 MHz10 kHz500 kHz
HV repetition rate
(in burst mode), max
4.8 MHz4.8 MHz
HV pulse rise / fall times, min 3)< 5.5 ns< 6 ns< 5.5 ns< 6 ns< 26 / 13 ns
HV pulse duration, min100 ns0 ns25 ns30 ns70 ns
HV pulse duration extension to infinity 4)YESNONONONO
Modulation of an individual HV pulse amplitudeNONONONOYES
Minimum pause between HV pulses100 ns100 ns25 ns100 ns100 ns
HV pulse delay25 – 30 ns 5)30 – 45 ns 5)30 ns30 ns45 ns
HV pulse jitter< 100 ps< 100 ps< 100 ps< 100 ps< 100 ps
Input specifications
Power supply requirements (power stage)UHV PS in (V) = Udriver out
PPS in (W) – see “Configurations”
UHV PS in (V) = Udriver out
PPS in (W) – see “Configurations”
UHV PS in (V) = Udriver out
PPS in (W) – see “Configurations”
UHV PS in (V) = Udriver out
PPS in (W) – see “Configurations”
UHV PS in (V) =
2.65 – 2.7 kV
PPS in (W) – see “Configurations”
Power supply requirements (control stage)24 V24 V24 V24 V24 V
Amount of external triggering input pulses1 or 21 or 21 or 21 or 21 or 2
Triggering pulse duration requirement (for two-pulses triggering mode only)> 20 ns> 20 ns> 20 ns> 20 ns> 20 ns
Triggering pulse amplitude requirement3.5 – 5 V 6)3.5 – 5 V 6)3.5 – 5 V 6)3.5 – 5 V 6)3.5 – 5 V 6)
Triggering pulse rise & fall time requirement< 10 ns< 10 ns< 5 ns< 10 ns< 10 ns
Modulation voltage range0.1 – 4.9 V
Physical characteristics
Dimensionssee “Drawings”see “Drawings”see “Drawings”see “Drawings”see “Drawings”
Operating requirements
Capacitance of load (Pockels cell)typically ≤ 6 pF 7)typically ≤ 6 pF 7)typically ≤ 6 pF 7)typically ≤ 6 pF 7)typically ≤ 6 pF 7)
Length of leads to load (Pockels cell), max10 cm10 cm10 cm10 cm10 cm
Cooling methodconductive, water or no cooling. See “Configurations”conductive, water or no cooling. See “Configurations”conductive, water or no cooling. See “Configurations”conductive, water or no cooling. See “Configurations”conductive, water or no cooling. See “Configurations”
Operating ambient temperature≤ 35°C≤ 35°C≤ 35°C≤ 35°C≤ 35°C
Operating baseplate temperature≤ 35°C≤ 35°C≤ 35°C≤ 35°C≤ 35°C
Accessories
HV output pins2 pc. of pins for HV wires included by default.
HV wires between driver and a Pockels cell not included
2 pc. of pins for HV wires included by default.
HV wires between driver and a Pockels cell not included
2 pc. of pins for HV wires included by default.
HV wires between driver and a Pockels cell not included
2 pc. of pins for HV wires included by default.
HV wires between driver and a Pockels cell not included
2 pc. of pins for HV wires included by default.
HV wires between driver and a Pockels cell not included
HV input cablesincluded 8)included 8)included 8)included 8)included 8)
Control cablesincluded 8)included 8)included 8)included 8)included 8)
HV power supplycomplimentary HV power supplies available. See “HV power supplies”complimentary HV power supplies available. See “HV power supplies”complimentary HV power supplies available. See “HV power supplies”complimentary HV power supplies available. See “HV power supplies”complimentary HV power supplies available. See “HV power supplies”
CAN-USB adapter
(for HV power supply)
optional 9)optional 9)optional 9)optional 9)optional 9)
DRIVER seriesPCD-UHR2PCD-UHRPCD-UHRSPCD-UHVPCD-FAM
  1. High voltage.
  2. Maximal limit. Not all maximal limits can be reached simultaneously.
  3. Minimal limit at 6 pF load.
  4. Using pulse regeneration technique.
  5. Depends on model.
  6. 50 Ω input.
  7. If higher, please consult with Ekspla.
  8. Included by default.
  9. Ekspla’s CAN-USB adapter is required at evaluation stage if communication via CAN interface is needed.

Model selection table

ModelRepetition rate,
max 1)
Output pulse amplitude, maxPulse rise / fall times, typical 2)Pulse duration range,
min – max 3)
Power consumption, max 2)Cooling
method
Dimensions
(L×W×H)
Drawing
PCD-UHR series
PCD-UHR-50-3.650 kHz3.6 kV< 7 ns100 – 5000 ns20 WConductive94×63×31 mmFig. 1
PCD-UHR-50-3.6-C50 kHz3.6 kV< 7 ns100 – 5000 ns20 WWater114×73×50 mmFig. 2
PCD-UHR-50-3.6-C-Option150 kHz3.6 kV< 7 ns100 – 5000 ns20 WConductive
or water
116×68×42 mmFig. 3
PCD-UHR-250-2.6250 kHz2.6 kV< 6 ns100 – 3900 ns40 WConductive
or water
116×63×38 mmFig. 1
PCD-UHR-250-2.6-C250 kHz2.6 kV< 6 ns100 – 3900 ns40 WWater114×73×50 mmFig. 2
PCD-UHR-250-2.6-C-Option1250 kHz2.6 kV< 6 ns100 – 3900 ns40 WConductive
or water
116×68×42 mmFig. 3
PCD-UHR-250-3.6250 kHz3.6 kV< 7 ns100 – 3900 ns75 WConductive
or water
116×63×38 mmFig. 1
PCD-UHR-250-3.6-C250 kHz3.6 kV< 7 ns100 – 3900 ns75 WWater114×73×50 mmFig. 2
PCD-UHR-250-3.6-C-Option1250 kHz3.6 kV< 7 ns100 – 3900 ns75 WConductive
or water
116×68×42 mmFig. 3
PCD-UHR-400-1.5400 kHz1.5 kV< 5.5 ns100 – 2400 ns20 WConductive
or water
116×63×38 mmFig. 1
PCD-UHR-400-1.5-C400 kHz1.5 kV< 5.5 ns100 – 2400 ns20 WWater114×73×50 mmFig. 2
PCD-UHR-400-1.5-C-Option1400 kHz1.5 kV< 5.5 ns100 – 2400 ns20 WConductive
or water
116×68×42 mmFig. 3
PCD-UHR-500-2.6500 kHz2.6 kV< 6.5 ns100 – 1900 ns90 WConductive
or water
116×63×38 mmFig. 1
PCD-UHR-500-2.6-C500 kHz2.6 kV< 6.5 ns100 – 1900 ns90 WWater114×73×50 mmFig. 2
PCD-UHR-500-2.6-C-Option1500 kHz2.6 kV< 6.5 ns100 – 1900 ns90 WConductive
or water
116×68×42 mmFig. 3
PCD-UHR-1000-1.81 MHz1.8 kV< 6 ns100 – 900 ns80 WConductive
or water
116×63×38 mmFig. 1
PCD-UHR-1000-1.8-C1 MHz1.8 kV< 6 ns100 – 900 ns80 WWater114×73×50 mmFig. 2
PCD-UHR-1000-1.8-C-Option11 MHz1.8 kV< 6 ns100 – 900 ns80 WConductive
or water
116×68×42 mmFig. 3
PCD-UHR-2000-1.52 MHz1.5 kV< 7 ns100 – 400 ns120 WConductive
or water
116×63×38 mmFig. 1
PCD-UHR-2000-1.5-C2 MHz1.5 kV< 7 ns100 – 400 ns120 WWater114×73×50 mmFig. 2
PCD-UHR-2000-1.5-C-Option12 MHz1.5 kV< 7 ns100 – 400 ns120 WConductive
or water
116×68×42 mmFig. 3
PCD-UHR-I-250-5.2-C250 kHz5.2 kV< 8.5 ns100 – 5000 ns100 WConductive
or water
158×49×81 mmFig. 4
PCD-UHR-I-300-4.6-C300 kHz4.6 kV< 8 ns100 – 5000 ns100 WConductive
or water
158×49×81 mmFig. 4
PCD-UHR-I-350-4-C350 kHz4 kV< 7.5 ns100 – 5000 ns100 WConductive
or water
158×49×81 mmFig. 4
PCD-UHR-I-1000-3.0-C1 MHz3 kV< 7.5 ns100 – 5000 ns120 WConductive
or water
158×49×81 mmFig. 4
PCD-UHR-II-150-7.0150 kHz7 kV< 9.5 ns100 – 5000 ns110 WConductive148×74×33 mmFig. 5
PCD-UHR-II-250-7.0-C250 kHz7 kV< 9.5 ns100 – 5000 ns200 WConductive
or water
172×77×51 mmFig. 6
PCD-UHR-II-1000-3.8-C1 MHz3.8 kV< 6 ns100 – 5000 ns230 WConductive
or water
172×77×51 mmFig. 6
PCD-UHR-II-1000-4.0-C1 MHz4 kV< 9.5 ns100 – 5000 ns210 WConductive
or water
172×77×51 mmFig. 6
PCD-UHR-III-500-7.2-C500 kHz7.2 kV< 8 ns100 – 1900 ns400 WWater220×87×98 mmFig. 7
PCD-UHR-III-2000-3.4-C2 MHz3.4 kV< 8.5 ns100 – 400 ns360 WWater220×87×98 mmFig. 7
PCD-UHR-III-2500-3.1-C2.5 MHz3.1 kV< 9.5 ns100 – 300 ns360 WWater220×87×98 mmFig. 7
PCD-UHR-III-3000-2.6-C3 MHz2.6 kV< 8.5 ns100 – 233 ns325 WWater220×87×98 mmFig. 7
2PCD-UHR series
2PCD-UHR-500-3.4-C500 kHz3.4 kV< 7 ns0 – 1900 ns150 WWater210×98×53 mmFig. 8
2PCD-UHR-1000-2.4-C1 MHz2.4 kV< 6.5 ns0 – 900 ns180 WWater210×98×53 mmFig. 8
2PCD-UHR-2000-1.6-C2 MHz1.6 kV< 6 ns0 – 400 ns130 WWater210×98×53 mmFig. 8
2PCD-UHR-II-300-3.4300 kHz3.4 kV< 7 ns0 – 1556 ns110 WConductive148×74×33 mmFig. 5
2PCD-UHR-II-500-3.4-C500 kHz3.4 kV< 7 ns0 – 900 ns200 WConductive
or water
172×77×51 mmFig. 6
2PCD-UHR-II-1000-2.5-C1 MHz2.5 kV< 7 ns0 – 400 ns170 WConductive
or water
172×77×51 mmFig. 6
2PCD-UHR-II-2000-1.8-C2 MHz1.8 kV< 7 ns0 – 150 ns210 WConductive
or water
172×77×51 mmFig. 6
2PCD-UHR-II-2000-1.5-C2 MHz1.5 kV< 6 ns100 – 900 ns215 WConductive
or water
172×77×51 mmFig. 6
2PCD-UHR-III-4000-1.7-C4 Mhz1.7 kV< 10.5 ns100 – 300 ns360 WWater220×87×98 mmFig. 7
2PCD-UHR-III-6000-1.3-C6 Mhz1.3 kV< 9 ns100 – 233 ns350 WWater220×87×98 mmFig. 7
PCD-UHRS series
PCD-UHRS-50-3.650 kHz3.6 kV< 7 ns25 – 5000 ns20 WConductive94×63×31 mmFig. 9
PCD-UHRS-50-3.6-C50 kHz3.6 kV< 7 ns25 – 5000 ns20 WWater114×73×50 mmFig. 11
PCD-UHRS-50-3.6-C-Option150 kHz3.6 kV< 7 ns25 – 5000 ns20 WConductive or water116×68×42 mmFig. 10
PCD-UHRS-250-3.6250 kHz3.6 kV< 7 ns25 – 1000 ns75 WConductive or water116×63×38 mmFig. 9
PCD-UHRS-250-3.6-C250 kHz3.6 kV< 7 ns25 – 1000 ns75 WWater114×73×50 mmFig. 11
PCD-UHRS-250-3.6-C-Option1250 kHz3.6 kV< 7 ns25 – 1000 ns75 WConductive or water116×68×42 mmFig. 10
PCD-UHRS-250-2.6250 kHz2.6 kV< 6 ns25 – 1000 ns40 WConductive or water116×63×38 mmFig. 9
PCD-UHRS-400-1.5400 kHz1.5 kV< 5.5 ns25 – 625 ns20 WConductive or water116×63×38 mmFig. 9
PCD-UHRS-500-2.6500 kHz2.6 kV< 6.5 ns25 – 500 ns90 WConductive or water116×63×38 mmFig. 9
PCD-UHRS-500-2.6-C500 kHz2.6 kV< 6.5 ns25 – 500 ns90 WWater114×73×50 mmFig. 11
PCD-UHRS-500-2.6-C-Option1500 kHz2.6 kV< 6.5 ns25 – 500 ns90 WConductive or water116×68×42 mmFig. 10
PCD-UHRS-1000-1.81 MHz1.8 kV< 6 ns25 – 250 ns80 WConductive or water116×63×38 mmFig. 9
PCD-UHRS-1000-1.8-C1 MHz1.8 kV< 6 ns25 – 250 ns80 WWater114×73×50 mmFig. 11
PCD-UHRS-1000-1.8-C-Option11 MHz1.8 kV< 6 ns25 – 250 ns80 WConductive or water116×68×42 mmFig. 10
PCD-UHV series
PCD-UHV-4.210 kHz4.2 kV< 6 ns30 – 3000 ns5 WNot needed140×60×29 mmFig. 12
PCD-UHV-4.2-C10 kHz4.2 kV< 6 ns30 – 3000 ns5 WNot needed192×81×75 mmFig. 13
PCD-UHV-5.55 kHz5.5 kV< 7 ns30 – 3000 ns5 WNot needed140×60×29 mmFig. 12
PCD-UHV-5.5-C5 kHz5.5 kV< 7 ns30 – 3000 ns5 WNot needed192×81×75 mmFig. 13
PCD-UHV10-8.63 kHz8.6 kV< 10.5 ns /
< 9.5 ns
35 – 2000 ns5 WNot needed140×60×29 mmFig. 12
PCD-UHV10-8.6-C3 kHz8.6 kV< 10.5 ns /
< 9.5 ns
35 – 2000 ns5 WNot needed192×81×75 mmFig. 13
PCD-UHV10-9.82.5 kHz9.8 kV< 12 ns /
< 10.5 ns
35 – 2000 ns5 WNot needed140×60×29 mmFig. 12
PCD-UHV10-9.8-C2.5 kHz9.8 kV< 12 ns /
< 10.5 ns
35 – 2000 ns5 WNot needed192×81×75 mmFig. 13
PCD-FAM series
PCD-FAM-250-2.5-C250 kHz2.5 kV< 26 ns /
< 13 ns
70 – 3000 ns60 WConductive or water139×69×57 mmFig. 14
PCD-FAM-500-2.5-C500 kHz2.5 kV< 26 ns /
< 13 ns
70 – 1000 ns120 WConductive or water139×69×57 mmFig. 14
ModelRepetition rate,
max 1)
Output pulse amplitude, maxPulse rise / fall times, typical 2)Pulse duration range,
min – max 3)
Power consumption, max 2)Cooling
method
Dimensions
(L×W×H)
Drawing
  1. Without burst.
  2. At 6 pF load.
  3. Without extension to infinity.
PCD model coding scheme

PCD model coding scheme.

Specifications of HV power supplies

ModelOutput power, maxHigh voltage output options, maxDimensions
(L × W × H)
DrawingNotes
Encased HV Power Supply
HV-200200 W1.8, 2.6, 3.6, 4.0 kV200 × 119 × 76 mmFig. 15No. 1
HV-400400 W1.8, 2.6, 3.6, 4.0 kV200 × 119 × 76 mmFig. 15No. 1
HV-2×2002 x 200 W±1.5, ±2.0, ±2.6, ±3.6 kV200 × 119 × 76 mmFig. 15No. 1
HV-170170 W1.8, 2.6, 3.6 kV52 × 80 × 58 mmFig. 16No. 2
HV-2×852 x 85 W±1.5, ±1.8 kV52 × 80 × 58 mmFig. 16No. 2
Open frame (PCB) HV Power Supply
HV05Wm5 W1.8, 2.8, 4.0, 4.4, 5.0 kV135 × 45 × 27 mmFig. 17No. 2
HV05Wm-CAN5 W1.8, 2.8, 4.0, 4.4, 5.0 kV135 × 45 × 27 mmFig. 17No. 2 1)
HV40Wm40 W1.3, 1.8, 2.5, 3.6, 4.0 kV160 × 70 ×35 mmFig. 18No. 2
HV40Wm-CAN40 W1.3, 1.8, 2.5, 3.6, 4.0 kV160 × 70 ×35 mmFig. 18No. 2 1)
HV80Wm80 W1.8, 2.6, 3.1, 3.6, 4.0 kV175 × 70 × 45 mmFig. 19No. 2
HV80Wm-CAN80 W1.8, 2.6, 3.1, 3.6, 4.0 kV175 × 70 × 45 mmFig. 19No. 2 1)
HV120Wm120 W1.8, 2.6, 3.1, 3.6 kV175 × 110 × 42 mmFig. 20No. 2
HV120Wm-CAN120 W1.8, 2.6, 3.1, 3.6 kV175 × 110 × 42 mmFig. 20No. 2 1)
HV2x60Wm2 x 60 W±1.4, ±2.0, ±2.6, ±3.6 kV175 × 110 × 42 mmFig. 20No. 2
HV2x60Wm-CAN2 x 60 W±1.4, ±2.0, ±2.6, ±3.6 kV175 × 110 × 42 mmFig. 20No. 2 1)
ModelOutput power, maxHigh voltage output options, maxDimensions
(L × W × H)
DrawingNotes

Notes:

  1. Input voltage: 48 V
    Output voltage (main): Uout range (kV) = 0 – Uout max
    Output voltage (auxiliary): 24 V
    Control options: CAN 1), RS232, trimmer or analog (optional)
  2. Input voltage: 24 V
    Output voltage range: Uout range (kV) = 0.4×Uout max – Uout max
    Control options: CAN 1), trimmer or analog (optional)
  1. For CAN communication at evaluation stage Ekspla’s CAN-USB adapter is required.

PCD Pockels cells drivers

HV power supplies

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