Deal Mar Photonics

Pismo pulse picker for laser wavelength: 1025~1045 nm

Customer inquiry:


Nowadays I am finding a proper pulse picker system for my experimental setup and I have some questions about your pulse picker system.


The properties of my laser system is like these:
-Wavelength: 1025~1045 nm (center wavelength: 1035 nm, bandwidth: 20 nm)
-Average power: 5 W
-repetition rate: 100 kHz
-pulse duration: 300 fs level
-pulse energy: 50 uJ
-pulse peak power: 170 MW
-beam diameter: 10 mm


Are there proper pulse picker among your products? or could you make the picker module for my application? If it is possible, how about the price? I want to get a quotation about this module.


Del Mar Photonics reply:

We can offer a new system with up to 1 kHz repetition rate:


Pismo OG10/1/DKDP pulse picker system

Complete Pulse picker system with synchronization and control electronics
Pockels cell crystal: DKDP 12x12x25 mm, ARC 1000-1080 nm (clear aperture 11 - mm)
HV pulse amplitude: up to 10 kV (HV pulse has the amplitude ~5kV with duration 10 ns at level 10% of maximum)
Repetition rate: ss - 1 kHz
System transmission: >85%
Contrast ratio: >1:500
RF source rep. rate: 2?50 MHz and 1 Hz? MHz*
RF input: optical (internal fiber coupled photodetector with 1.5-m long plastic fiber) or electric

* - proper operation with input train rep. rate 1 Hz? MHz is only available with triggering by external electric signal. The external trigger signal must lead the optical pulse by 0.25-3 μs and must be strictly locked to the optical train with jitter less than 200 ps

USB control with drivers and software included

Also included:
Two Glan-Taylor calcite air-spaced polarizers with mounts
1.5-meter optical fiber for synchronization
LabView-compatible software

Request a quote


As for your questions, please let me answer them:


Question 1: Is it possible? and if it is, what's the expected repetition rate? around 1 kHz ?
>>> see above

Question 2: my laser characteristics are like these;
-Wavelength: 1025~1045 nm (center wavelength: 1035 nm, bandwidth: 20 nm)
-Average power: 10 W
-repetition rate: 100 kHz ~ 50 MHz (adjustable, and can be stabilized to a reference clock)
-pulse duration: 300 fs level
-pulse energy: max 50 uJ
-beam diameter: 10 mm

I wonder that the Pockels cell or PBS could endure the pulse energy or not.

>>> It is ok for our pulse picker.

Question 3: I couldn't understand these sentences; "RF source rep. rate: 2?50 MHz and 1 Hz? MHz*
* - proper operation with input train rep. rate 1 Hz? MHz is only available with triggering by external electric signal."
In my laser system, pulse repetition rate is stabilized to a reference clock. Even though the stabilization is worked, should I use a external electric signal when the repetition rate of my laser system is under 2 MHz?

>>> Yes, the pulse picker system still have to be synchronized under 2 MHz to ensure stable operation at such low reference frequency. But in case you have a reference clock, it should have a spare trigger output channel so the synching would be easy, should not it?

 

Del Mar Photonics

Pulse pickers

The pulse picker consists of the pockels cell, high voltage driver, synchronization and delay generator. It is suitable for single pulse selection from train of femtosecond or picosecond pulses. Also the device is used for pulse slicing in order to increase contrast.

  External high-frequency or optical reference
High-voltage pulse with adjustable delay
High-voltage pulse with adjustable amplitude
Two additional sync channels
High contrast
Low jitter

Applications
- Pulse selection
- Pulse Slicing
- Q-switching

Pismo Pulse Pickers brochure - Pismo 8-1-1 manual - Del Mar Photonics

Output voltage, kV
Repetition rate, kHz
Rise time, ns
Pulse duration, ns
Jitter, ns
Input sync signal
Sync repetition rate, MHz
Adjustable delay, ms
Pismo 8/1:  4-8; Pismo 12/1: 6-12
1/10/25/50
< 1-10*
< 2 -100*
< 0.2
optical or TTL
10-150
 0 - 4

* - please specify with order
Models Pismo 8/2 and Pismo 12/2 incorporate one Pockels cell and produce two high voltage pulses.
Customer requested high voltage generators up to 50kV are also available.

Pulse shapes from Pismo pulse picker

Del Mar Photonics produce pulse picker systems with repetition rate up to 100 kHz.

We can offer you our standard devices for picking single pulse from femtosecond pulse train with following specification:

7

Pulse Pickers Pismo

7.1

Pismo 8/1. One-channel, 8kV/1Hz-1kHz  pulse picker with  synchronization electronics

7.2

Pismo 8/10. One-channel, 8kV/500Hz-10kHz  pulse picker with  synchronization electronics

7.3

Pismo 8/25. One-channel, 8kV/500Hz-25kHz  pulse picker with  synchronization electronics

7.4

Pismo 8/40. One-channel, 8kV/500Hz-40kHz  pulse picker with  synchronization electronics

 

Pismo 8/1 (DKDP 10x10x25 mm3)

 

Pismo 88/1 (DKDP 10x10x25 mm3)

 

Pismo 88/1 (BBO 4x4x20 mm3)

7.5

Pismo 12/1. One-channel,12kV/1Hz-1kHz  pulse picker with  synchronization electronics

7.6

Pismo 12/10. One-channel 12kV/500Hz-10kHz  pulse picker with  synchronization electronics

7.7

Second channel for pulse picker Pismo 8/1

7.8

Second channel for pulse picker Pismo 8/10 ; Pismo 12/1

7.9

Second channel for pulse picker Pismo 8/25 ; Pismo 12/10

7.10

Pismo 8/1-2. Two-channel, one-cell 8kV/1Hz-1kHz  pulse picker with  synchronization electronics

7.11

Pismo 55/1. 5kV/1Hz-1kHz /variable 10-1250ns flat top pulse pulse picker with  synchronization electronics

7.12

Pismo 88/1. 8kV/1Hz-1kHz /variable 10-1250ns flat top pulse picker with  synchronization electronics

7.13

Pismo 8C/1. 8kV/1Hz-1kHz / not variable (constant duration, custom request) flat top pulse pulse picker with  synchronization electronics

7.14

Pismo 58P/1. 5kV/1Hz-1kHz /10-1000ns (搝ero?square pulse with  損repulse? pulse picker with  synchronization electronics

7.xx Custom Pulse Picker - please  send us your requirements

We produce pulse picker system with repetition rate up to 100 kHz (HV pulse have the amplitude ~8kV with duration 10 ns at level 10% of maximum).

Contrast ratio - >1000:1, optical transmission of pulse picker system - >87%, clear aperture ?7mm in diameter (other dimension on request), water cooling is required (flow ~3 l/min).

New models:

1. Pismo OG8-50-1
Pockels cell crystal: DKDP, 6x6x16 mm3, ARC 700-900 nm (clear aperture ?5 mm), other aperture on request
HV pulse amplitude: up to 8 kV (HV pulse has the amplitude ~8kV with duration 10 ns at level 10% of maximum)
Repetition rate: 1 Hz ?50 kHz
RF source: 30-120 MHz
RF input: optical (internal fiber coupled photodetector with 3m length plastic fiber)
System transmission: >85%
Contrast ratio: >1:1000
Cooling requirements: water flow ~3 l/min


2. Pismo OG8-100-1
Pockels cell crystal: BBO, 4x4x20 mm3, ARC 700-900 nm (clear aperture ?3.5 mm), other aperture on request
HV pulse amplitude: up to 8 kV (HV pulse has the amplitude ~8kV with duration 10 ns at level 10% of maximum)
Repetition rate: 1 Hz ?100 kHz
RF source: 30-120 MHz
RF input: optical (internal fiber coupled photodetector with 3m length plastic fiber)
System transmission: >85%
Contrast ratio: >1:1000
Cooling requirements: water flow ~3 l/min

Pismo Pulse Pickers brochure - Pismo 8-1-1 manual - Del Mar Photonics

Components of a standard
pulse picker:


1) Pockels cell
2) Control and supply unit
3) Glan prism
4) Glan prism mount
5) Mirror mount
6) Mirror
7) Quarter-wave plate
8) Fiber
9) Fiber holder
10) AC power cord
11) Connection cable
12) Tube (6 m)
Components of Del Mar Photonics Pismo pulse picker

 

7

Pulse Pickers Pismo

7.1

Pismo 8/1. One-channel, 8kV/1Hz-1kHz  pulse picker with  synchronization electronics

7.2

Pismo 8/10. One-channel, 8kV/500Hz-10kHz  pulse picker with  synchronization electronics

7.3

Pismo 8/25. One-channel, 8kV/500Hz-25kHz  pulse picker with  synchronization electronics

7.4

Pismo 8/40. One-channel, 8kV/500Hz-40kHz  pulse picker with  synchronization electronics

 

Pismo 8/1 (DKDP 10x10x25 mm3)

 

Pismo 88/1 (DKDP 10x10x25 mm3)

 

Pismo 88/1 (BBO 4x4x20 mm3)

7.5

Pismo 12/1. One-channel,12kV/1Hz-1kHz  pulse picker with  synchronization electronics

7.6

Pismo 12/10. One-channel 12kV/500Hz-10kHz  pulse picker with  synchronization electronics

7.7

Second channel for pulse picker Pismo 8/1

7.8

Second channel for pulse picker Pismo 8/10 ; Pismo 12/1

7.9

Second channel for pulse picker Pismo 8/25 ; Pismo 12/10

7.10

Pismo 8/1-2. Two-channel, one-cell 8kV/1Hz-1kHz  pulse picker with  synchronization electronics

7.11

Pismo 55/1. 5kV/1Hz-1kHz /variable 10-1250ns flat top pulse pulse picker with  synchronization electronics

7.12

Pismo 88/1. 8kV/1Hz-1kHz /variable 10-1250ns flat top pulse picker with  synchronization electronics

7.13

Pismo 8C/1. 8kV/1Hz-1kHz / not variable (constant duration, custom request) flat top pulse pulse picker with  synchronization electronics

7.14

Pismo 58P/1. 5kV/1Hz-1kHz /10-1000ns (搝ero?square pulse with  損repulse? pulse picker with  synchronization electronics

7.xx Custom Pulse Picker - please  send us your requirements

We produce pulse picker system with repetition rate up to 100 kHz (HV pulse have the amplitude ~8kV with duration 10 ns at level 10% of maximum).

Contrast ratio - >1000:1, optical transmission of pulse picker system - >87%, clear aperture ?7mm in diameter (other dimension on request), water cooling is required (flow ~3 l/min).

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