Picosecond laser system PT277 series

tunablemid-infraredmicroscopy

The PT277 series is a single housing mid-infrared tunable picosecond laser system designed for advanced spectroscopy and microscopy applications. This system integrates a picosecond optical parametric oscillator (OPO) and a DPSS pump laser into a single compact housing, providing robust construction, improved long-term stability, and reduced maintenance. The PT277 XIR series offers a tunable wavelength range of 1403–2020 nm, 2250–4400 nm, and 12500–17000 nm, with a linewidth of less than 5 cm⁻¹ across the full tuning range. The system features hands-free, motorized tuning, nearly diffraction-limited divergence, and beam direction stability throughout the entire range. It is equipped with an internal air cleaning system and supports PC control via USB, RS232, and LAN using REST API commands, enabling fast wavelength scanning and easy integration with other equipment.

Features

• Tuning range 1403–17000 nm (7127–600 cm⁻¹)
• Hands-free tuning: motorized for the entire tuning range
• Linewidth <5 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)

Available Models

• PT277-SI: Provides narrowband radiation with a linewidth <5 cm⁻¹ in the entire tuning range: 1403–2020 nm (7127–4951 cm⁻¹), 2250–4400 nm (4444–2273 cm⁻¹)
• PT277-XIR: Provides narrowband radiation with a linewidth <5 cm⁻¹ in the entire tuning range: 1403–2020 nm (7127–4951 cm⁻¹), 2250–4400 nm (4444–2273 cm⁻¹), 12500–17000 nm (800–600 cm⁻¹)

Description

• Integrates a picosecond OPO and pump laser in a single compact housing for robust installation and improved stability
• Hermetic design with internal air cleaning system for water vapor and organics removal
• Nearly diffraction-limited divergence and beam-direction stability throughout the spectral tuning range
• Fast, fully automatic wavelength tuning via advanced microprocessor control and closed-loop micro-stepping motors
• Precise temperature control of nonlinear crystals
• Control via keypad or any OS using REST API; interfaces include USB, RS232, LAN, WLAN (optional)

Specifications

• Tuning range (PT277-XIR): Signal: 1403–2020 nm (7127–4951 cm⁻¹); Idler: 2250–4400 nm (4444–2273 cm⁻¹); DFG: 12500–17000 nm (800–600 cm⁻¹)
• Output power: >400 mW at 1400–2020 nm (Signal), >100 mW at 2250–4000 nm (Idler), >10 mW at 12500 nm (DFG)
• Linewidth: <5 cm⁻¹
• Pulse repetition rate: ~87 MHz (same as pump laser)
• Pulse duration: ~8 ps
• Typical beam diameter: ~3 mm @ 3000 nm
• Typical beam divergence: <5 mrad @ 1600 nm
• Beam pointing stability: <50 µrad rms @ 1600 nm
• Polarization: linear, vertical (signal, idler, DFG)
• Fast spectral scan speed: <4 s (1400–2020 nm, 2250–4400 nm), <2 s (5000–16000 nm DFG)
• Output power modulation frequency (AOM): 0 Hz – 2 MHz
• Unit size (W × L × H): 320 × 766 × 241 mm
• Power supply size: 483 × 140 × 390 mm, stand-alone
• Chiller (third-party, approx.): 290 × 420 × 290 mm, stand-alone
• Umbilical length: 2.5 m
• Cooling: water-air
• Room temperature: 22 ±2 °C; stability: ±1 °C
• Relative humidity: <80% (noncondensing)
• Power requirements: 100–240 VAC (-10% / +5%), single phase, 50/60 Hz
• Power consumption: <1 kW
• Room cleanness: not worse than ISO Class 9

Note

• The laser must remain connected to mains electricity at all times. If disconnected for more than 1 hour, a warm-up period of a few hours is required before operation. Install in a dust- and aerosol-free, air-conditioned room, on a solid optical table, away from vibration sources.