Products Tunable wavelength lasers PT277

PT277 series

Single Housing Mid-Infrared Tunable Picosecond Laser System

PT277 XIR series tunable wavelength laser systems integrate a picosecond optical parametric oscillator and DPSS pump laser into a single compact housing  The tuning range features 1403 – 2020 nm, 2250 – 4400 nm, 12500 – 17000 nm with linewidth < 4 cm‑1 in the full tuning range.

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PT277
Overview Specifications Options Performance Drawings Downloads
Overview

Features

  • Tuning range 1403 – 17000 nm (7127 – 589 cm⁻¹)
  • Hands-free tuning: motorized for the entire tuning range
  • Linewidth <4 cm⁻¹ in the entire tuning range
  • Nearly diffraction limited divergence
  • Beam direction stability in the entire tuning range
  • Single housing: integrates a pump laser and OPO in a single housing
  • Internal air cleaning system
  • PC control via USB (virtual COM port), RS232, LAN using REST API commands
  • Fast wavelength scan (sweep)

Applications

  • Infrared spectroscopy
  • SNOM (scanning near field microscopy)

Description

PT277 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.

The laser is hermetic and has an internal air cleaning system to clean from water vapor and organics, making it an excellent source for spectroscopic applications.

Nearly diffraction-limited divergence and beam-direction stability throughout the entire spectral tuning range are essential in tunable radiation applications requiring high-precision laser beam focusing.

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.

Typical PT277-XIR laser system output tuning curve.

Typical PT277-XIR laser system output tuning curve.

The actual tuning curve might differ from presented here.

Communication interfaceDescription
USB *REST API over RNDIS
RS232ASCII commands
LANREST API
Remote control padWith a backlit display

* Default. Other option – ASCII commands over virtual serial port.

Simple and convenient laser control

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.

Available models

ModelFeatures
PT277-SIprovides a narrowband radiation with a linewidth <4 cm‑1 in the entire tuning range:
1403 – 2020 nm (7127 – 4951 cm‑1)
2250 – 4400 nm (4444 – 2273 cm‑1)
PT277-XIRprovides a narrowband radiation with a linewidth <4 cm‑1 in the entire tuning range:
1403 – 2020 nm (7127 – 4951 cm‑1)
2250 – 4400 nm (4444 – 2273 cm‑1)
5000 – 17000 nm (2000 – 589 cm‑1) 1)
  1. Inquire about the available spectral range.

Specifications

ModelPT277-SIPT277-XIR
Output specifications 1)
Tuning range
Signal1403 – 2020 nm (7127 – 4951 cm‑1)1403 – 2020 nm (7127 – 4951 cm‑1)
Idler2250 – 4400 nm (4444 – 2273 cm‑1)2250 – 4400 nm (4444 – 2273 cm‑1)
DFG–5000 – 17000 nm (2000 – 589 cm‑1) 2)
Output power 3)
At 1400 – 2020 nm (Signal)> 400 mW> 400 mW
At 2250 – 4000 nm (Idler)> 100 mW> 100 mW
At 12500 nm (DFG)–> 10 mW
At 17000 nm (DFG)–> 3 mW
Linewidth< 4 cm‑1< 4 cm‑1
Pulse repetition rate~ 87 MHz (same as that of the pump laser)~ 87 MHz (same as that of the pump laser)
Pulse duration~ 8 ps~ 8 ps
Typical beam diameter 4) (at 1/e2 level)~ 3 mm @ 3000 nm~ 3 mm @ 3000 nm
Typical beam divergence 5)< 5 mrad @ 1600 nm< 5 mrad @ 1600 nm
Beam pointing stability< 50 µrad rms @ 1600 nm< 50 µrad rms @ 1600 nm
Polarization
Signal and idlerlinear, verticallinear, vertical
DFG–linear, vertical
Fast spectral scan speed for spectral range
From 1400 to 2020 nm (Signal)< 4 s< 4 s
From 2250 to 4400 nm (Idler)< 4 s< 4 s
From 5000 to 16000 nm (DFG)–< 2 s
Output power modulation frequency (AOM)0 Hz – 2 MHz0 Hz – 2 MHz
Physical characteristics
Laser unit size (W×L×H)320 × 766 × 241 mm320 × 766 × 241 mm
Power supply size (W × L × H)483 × 140 × 390 mm , stand-alone483 × 140 × 390 mm , stand-alone
Chiller (third-party, approx.) (W×L×H)290 × 420 × 290 mm , stand-alone290 × 420 × 290 mm , stand-alone
Umbilical length2.5 m2.5 m
Operating requirements
Coolingwater-airwater-air
Room temperature22 ± 2 °C22 ± 2 °C
Room temperature stability± 1 °C± 1 °C
Relative humidity< 80 % (noncondensing)< 80 % (noncondensing)
Power requirements100 – 240 VAC (-10% / +5%), single phase, 50/60 Hz100 – 240 VAC (-10% / +5%), single phase, 50/60 Hz
Power consumption< 1 kW< 1 kW
Cleanness of the roomnot worse than ISO Class 9not worse than ISO Class 9
ModelPT277-SIPT277-XIR
  1. All specifications are subject to change without notice. The parameters given in the table are indicators of the typical performance of the laser system. They may vary with each manufactured laser system.
  2. Inquire about the available spectral range.
  3. Output powers are specified at selected wavelengths. See typical tuning curves for power at other wavelengths. Power drops are possible.
  4. May vary depending on pump pulse energy.
  5. Full angle at FWHM level.

Note: The laser must be connected to the mains electricity all the time. If there will be no mains electricity for longer than 1 hour then the laser system needs to warm up for a few hours before switching radiation on. The laser and auxiliary units must be installed in a place free from dust and aerosols. It is advisable to operate the laser in an air-conditioned room and to place the laser at a distance from air conditioning outlets. The laser should be positioned on a solid optical table. Access from both sides should be ensured. Intense sources of vibrations like freight elevators, railway stations, etc. should be avoided nearby.

Option -H

1064 nm output, <0.5 W at 1064 nm output power.

Option -18000

Tuning range, DFG: 5000 – 18000 nm (2000 – 556 cm⁻¹).

Acousto-optic modulator AOM

An acousto-optic modulator AOM is used for the output pulse train modulation in the 0 – 2 MHz frequency range.

AOM control example

AOM control example.

Magenta – 100 kHz control TTL signal to AOM CONTROL; cyan – optical signal.

Performance

Typical PT277-SI laser system output tuning curve

Typical PT277-SI laser system output tuning curve.

The actual tuning curve might differ from presented here.

Typical PT277-XIR laser system output tuning curve

Typical PT277-XIR laser system output tuning curve.
DFG I range – for wide tuning range.
DFG II – for higher power at longer waves.

The actual tuning curve might differ from presented here.

Drawings

External dimensions of PT277-XIR and PT277-SI laser units (the same external housing).

PT277-SI laser features the same external housing as PT277-XIR.

PT277-XIR and PT277-SI lasers feature attachable handles that enable easy transportation and installation.

Downloads

PT277 Single Housing MIR Tunable Picosecond Lasers

Product datasheet.

478 KB,  rev. 260105.

Tunable Wavelength Lasers (summary)

Product highlights (specs summary).

701 KB,  rev. 260106.

Scientific Picosecond Lasers

Product catalog.

2.5 MB,  rev. 260105.

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