Single Housing UV–VIS–NIR Tunable Picosecond Laser System
PT401 series laser systems integrate a picosecond optical parametric oscillator (OPO) and a pump laser in a single compact housing. System provides a narrowband radiation with a linewidth <4 cm‑1 and tuning range 210 – 2300 nm.
Hands-free tuning: motorized for the entire tuning range
Linewidth <4 cm⁻¹
Repetition rate 1000 Hz, optionally 100 Hz
Air cooled – external water supply is not required
Beam direction stability in the entire tuning range
Single housing: integrates a pump laser and OPO in a single housing
PC control via USB, RS232 interface, LAN interface
Fast wavelength scan (sweep)
Applications
Time resolved fluorescence (including streak camera measurements)
Pump-probe spectroscopy
Nonlinear spectroscopy
Other spectroscopic and nonlinear optics applications
Description
PT401 series laser systems integrate a picosecond optical parametric oscillator (OPO) and a pump laser in a single compact housing. Mounting the components on the same frame provides a robust solution. It makes laser installation shorter, improves long-term stability, and reduces maintenance costs.
Fast and fully automatic wavelength tuning is achieved by advanced microprocessor control. The wavelength tuning elements are mounted on precise closed-loop micro-stepping motors. The temperatures of the nonlinear crystals are controlled by precise thermo-controllers. No additional manual adjustment of the laser system is needed.
For customer convenience, the laser can be operated from a master device or a personal computer using various interfaces. Depending on the system configuration, control is available via the USB interface (REST API over RNDIS or VCP with ASCII commands), the RS-232 interface (ASCII commands), the LAN interface (REST API), or from the remote control pad with a backlit display that remains easy to read even while wearing laser safety glasses.
Communication interface
Description
USB *
REST API over RNDIS
RS232
ASCII commands
LAN
REST API
Remote control pad
With a backlit display
* Default. Other option – ASCII commands over virtual serial port.
Available models
Model
Features
PT401
Provides a narrowband radiation with a linewidth <4 cm⁻¹. Tuning range 210 – 2300 nm. Repetition rate 1000 Hz, optionally 100 Hz.
Specifications
Model
PT401
PT401-SH-SF
OPA Specifications 1)
Output wavelenth tuning range
SH, SF
–
210 – 409 nm
Signal
410 – 709 nm
410 – 709 nm
Idler
710 – 2300 nm
710 – 2300 nm
Output pulse energy 2)
SH, SF 3)
–
> 45 µJ
Signal 4)
> 200 µJ
> 200 µJ
Idler 5)
> 60 µJ
> 60 µJ
Pulse repetition rate
1000 Hz
1000 Hz
Linewidth
< 4 cm‑1
< 6 cm‑1
Typical pulse duration 6)
~ 20 ps
~ 20 ps
Tuning resolution
< 0.5 cm‑1
< 0.5 cm‑1
Typical beam size 7)
~ 2.3 mm
~ 2.3 mm
Beam divergence 8)
< 2 mrad
< 2 mrad
Beam pointing stability
≤ 100 μrad rms
≤ 100 μrad rms
Beam polarization
SH, SF
–
horizontal
Signal
horizontal
horizontal
Idler
vertical
vertical
Wavelength sweep
available
available
Optical pulse jitter
Internal triggering regime 9)
< 50 ps (StdDev.) in respect to TRIG1 OUT pulse
< 50 ps (StdDev.) in respect to TRIG1 OUT pulse
External triggering regime 10)
~ 3 ns (StdDev.) in respect to SYNC IN pulse
~ 3 ns (StdDev.) in respect to SYNC IN pulse
TRIG1 OUT pulse delay
Positive pulse with controllable delay. Pulse width ~100 ns. Default delay ~250 μs before optical pulse up to 10 ms.
Positive pulse with controllable delay. Pulse width ~100 ns. Default delay ~250 μs before optical pulse up to 10 ms.
Physical characteristics
Laser unit size (W × L × H)
~ 508 × 1030 × 244 mm
~ 508 × 1030 × 244 mm
Power supply unit size (L×W×H)
450 × 450 × 140 mm
450 × 450 × 140 mm
Operating Requirements
Cooling
air cooled
air cooled
Operating ambient temperature
22 ± 2 °C
22 ± 2 °C
Relative humidity
20 – 80 % (non-condensing)
20 – 80 % (non-condensing)
Mains requirements
100 – 240 V AC single phase, 47 – 63 Hz
100 – 240 V AC single phase, 47 – 63 Hz
Power consumption
< 0.5 kW
< 0.5 kW
Cleanness of the room
not worse than ISO Class 9
not worse than ISO Class 9
Model
PT401
PT401-SH-SF
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 PT401 units for basic system without options.
Pulse energies are specified at selected wavelengths. See typical tuning curves for pulse energies at other wavelengths.
Measured at 260 nm.
Measured at 450 nm.
Measured at 1000 nm.
Estimated assuming 30 ps at 1064 nm pump pulse. Pulse duration varies depending on wavelength and pump energy.
Beam diameter at the 1/e² level. Can vary depending on the wavelength.
Beam divergence measured at FWHM.
< 10 ps jitter is provided with PRETRIG option.
TRIG1 OUT lead or delay can be adjusted with 0.25 ns steps in specified range.
Option 100 Hz
Pulse repetition rate 100 Hz. Energy increasing 2 times to compare with system 1000 Hz repetition rate.
