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PT403 series

Tunable Wavelength  Picosecond Laser

FEATURES ▶ Tuning range: 210 – 2300 nm ▶ Motorized hands-free tuning ▶ High pulse energy at 1 kHz rates ▶ Diode pumped solid state design ▶ Narrow linewidth < 9 cm⁻¹ ▶ Remote control via keypad  ▶ PC control   ▶ Optional streak camera triggering  pulse with < 10 ps rms jitter  ▶ Turn-key operation ▶ Air cooled – external water supply  is not required ▶ Low maintenance costs

APPLICATIONS   ▶ Time resolved fluorescence  (including streak camera  measurements), pump-probe  spectroscopy ▶ Laser-induced fluorescence ▶ Infrared spectroscopy ▶ Nonlinear spectroscopy:  surface-SH, Z-scan ▶ Other spectroscopic and nonlinear  optics applications BENEFITS   ▶ Better long term stability  (compared with layout where laser  and OPO are in different units) ▶ Higher safety – all beams are in  the box ▶ Shorter installation time ▶ Almost twice smaller footprint

PT403 series laser systems integrate a  picosecond 1 KHz repetition rate DPSS  pump laser and optical parametric  generator into a single housing. New  picosecond tunable wavelength laser  system provide from 210 to 2300 nm  from the one box.

Unlike other solutions in the market,  offering laser and OPO in different  units, new approach features pump  laser and OPO integrated into one  unit. That delivers almost twice  smaller footprint, shorter installation,  better stability and other substantial  benefits for user.

All-in one-box solution features all  components placed into one compact  housing. It means better overall  stability because all potential causes  for misalignment between separate  units of pump laser and optical  parametric generator are eliminated.

To ensure reliability industry  and market tested solutions were  employed during the build-up of  PT403.

Pump laser is based on industry  “gold standard” diode pumped  Ekspla PL2210 series picosecond  mode-locked laser. Improved output  parameters and reduced maintenance  costs are achieved by employing  diode-pumped-only technology.

Optical parametric generator is  based on PGx03 picosecond optical  parametric amplifier systems. Fully  automatized and microprocessor  based control system ensures hands  free precise wavelength tuning.

PT403 was built without sacrificing  any parameters or reliability. The  optical design is optimized to  produce low divergence beams  with moderate linewidth (typically  < 9 cm⁻¹) at approximately 15 – 20 ps  pulse duration. Featuring 1 KHz  repetition rate PT403 tuneable  laser is versatile cost-efficient  tool for scientists researching  various kind of disciplines like  time resolved fluorescence, pumpprobe spectroscopy, laser-induced  fluorescence, Infrared spectroscopy  and other aplications.

For customer convenience the  system have PC interface module with  USB interface, remote control through  Windows DLL function calls. This  options allow easy control of system  settings.

SPECIFICATIONS1)

Model	PT403	PT403-SH
OPA SPECIFICATIONS Output wavelength tuning range
SH	–	210 – 409 nm
Signal	410 – 709 nm
Idler	710 – 2300 nm
Output pulse energy 2)
SH 3)	–	15 µJ
Signal 4)	80 µJ
Idler 5)	25 µJ
Pulse repetition rate	1000 Hz
Linewidth	< 9 cm-1	< 12 cm-1
Typical pulse duration 6)	~ 20 ps
Scanning step
SH	–	0.05 nm
Signal	0.1 nm
Idler	1 nm
Typical beam size 7)	~ 2 mm
Beam divergence 8)	< 2 mrad
Beam pointing stability	≤ 100 μrad rms
Beam polarization
SH	–	horizontal
Signal	horizontal
Idler	vertical
Optical pulse jitter
Internal triggering regime 9)	< 50 ps (StDev) in respect to TRIG1 OUT pulse
External triggering regime	~ 3 ns (StDev) in respect to SYNC IN pulse
TRIG1 OUT pulse delay 10)	-400 ... 150 ns
OPERATING REQUIREMENTS
Room temperature	22 ± 2 °C
Relative humidity	20 – 80% (non-condensing)
Power requirements	100 – 240 V single phase, 47 – 63 Hz
Power consumption	< 0.6 kW
Water service	air cooled
Cleanness of the room	not worse than ISO Class 9

 1) Due to continuous improvement, all  specifications are subject to change without  notice. Parameters marked typical are not  specifications. They are indications of typical  performance and will vary with each unit we  manufacture. Unless stated otherwise, all  specifications are measured at 450 nm for  PT403 units for basic system without options.

2) Pulse energies are specified at selected  wavelengths. See typical tuning curves for  pulse energies at other wavelengths.

3) Measured at 260 nm.

4) Measured at 450 nm.

5) Measured at 1000 nm.

6) Estimated assuming 30 ps at 1064 nm pump pulse. Pulse  duration varies depending on wavelength and pump energy.

7) Beam diameter at the 1/e² level. Can vary depending on the  wavelength.

8) Beam divergence measured at FWHM.

9) < 10 ps jitter is provided with PRETRIG option.

Communication module interfaces

Interface Description
USB	virtual serial port, ASCII commands
RS232	ASCII commands
LAN	REST API
WLAN	REST API

 

DESIGN

The units can be divided into several  functional parts:  1. 1 kHz repetition rate DPSS pump  laser, 2. Optical parametric generator (OPG), 3. Electronic control unit. 

Fig 1. PT403 unit PT403 series laser systems integrate a picosecond 1 kHz repetition rate DPSS pump  laser and optical parametric generator into a single housing. As pump laser is used  PL2210 series diode-pumped, air-cooled, mode-locked Nd:YAG laser. Picosecond  tunable wavelength laser system provide from 210 to 2300 nm from the single optical  unit.

OPTIONS

 ▶ Option SF

Energy increasing in 300 – 409 nm range by sum-frequency generation.  > 20 µJ @ 340 nm. Pulse energies are ~ 10 % lower in comparison to the system  without SF option. See table below for pulse energy specifications:

Model 1)	PT403	PT403-SH
SH 2)	–	> 13 µJ
Signal 3)	> 70 µJ
Idler 4)	> 22 µJ

1) Due to continuous improvement, all specifications are  subject to change without notice. Parameters marked  typical are not specifications. They are indications of  typical performance and will vary with each unit we  manufacture.

2) Measured at 260 nm.

3) Measured at 450 nm.

4) Measured at 1000 nm.

 ▶ Options

-H, -2H, -3H 1064 nm or 532 nm, or 355 nm outputs. All energy is directed to this output port. – H output energy 0.7 mJ;  – 2H output energy 0.3 mJ; – 3H output energy 0.3 mJ.

 TUNING CURVES

OUTLINE DRAWINGS

OUTPUTS PORTS   

Model	L, mm	Port 1	Port 2	Port 3	Port 4
PT403	1241	1064 / 532 nm	–	355 nm	410 – 2300 nm
PT403-SH/SF	1441	1064 / 532 nm	210 – 2300 nm	355 nm	410 – 2300 nm

Note: Laser must be connected to the mains electricity all the time. If there will be no mains electricity for longer that 1 hour then  laser (system) needs warm up for a few hours before switching on.

商品属性
[波长]	410 – 2300 nm
[脉宽]	~ 20 ps
[重复频率]	1000 Hz