欧兰科技 (Demo Site)-产品指南-激光器和激光光谱测量系统-可调谐激光器-NT260窄线宽高重复频率可调谐激光器-各种激光器，光谱测量，材料应力和形变分析,CCD相机, 光学传感器，精密位移台，PIV，PLIF等- Powered By SiteEngine

Features & Applications

FEATURES

Hands-free no gap wavelength tuning in 210 – 2600 nm range
High repetition rate 10 kHz
Narrow linewidth down to 1.5 cm⁻¹
Up to 0.7 W output
Monolithic rugged frame
Motorized output shutters
Mixed Q-switched/ mode-locked operation
Easy control via keypad or PC

BENEFITS

Super reliable
Wide tuning range 210 – 2600 nm without gaps
Output peak in VIS range (useful for popular applications, like LIF)
Hands-free wavelength tuning – no need for physical intervention

APPLICATIONS

Laser-induced fluorescence spectroscopy
Photoacoustic microscopy
Metrology & equipment calibration
Pump-probe spectroscopy, photolysis
Mass spectroscopy
Environment monitoring, LIDAR

Description & Options

NT262 is a unique narrow linewidth 10 kHz OPO. Pioneering patented technology enables powerful up to 0.7 W output in 210 – 2600 nm wavelengths range while maintaining < 3 cm^-1 (typically < 2 cm^-1 at most wavelengths) linewidth that is highly beneficial for traditional and specific applications requiring narrow linewidth and high spectral brightness pulses. Thus, besides the most of popular applications, like fluorescence and pump-probe, the system is also suitable for such demanding applications where high resolution and narrow linewidth are required, like the calibration of detectors and spectroradiometers, metrology or gas spectroscopy.

High 10 kHz repetition rate and hands-free wavelength tuning makes easy and fast experiment data collection as never before. The system is highly stable, ensures excellent short and long-term energy and power stability, has smaller M² value if compared with traditional OPO systems. In addition to superior specifications, the laser is highly reliable due to low generation threshold and easy running regime. The system fits into monolithic, rugged housing that ensure high reliability and low costs of maintenance.

OPTIONS

Option	Features
-SH/SF	Tuning range extension in 210 – 405 nm range by combining second harmonics and sum-frequency generator outputs for maximum possible pulse energy
-H	1064 nm output via separate port

Specifications

Model	NT262
OPO ¹⁾
Wavelength range ²⁾
Signal	405 – 710 nm
Idler	710 – 2600 nm
SH / SF generator (optional)	210 – 405 nm
Output pulse energy / average power
OPO ³⁾	70 µJ / 700 mW
SH / SF generator (optional) ⁴⁾	6 µJ / 60 mW
Tuning resolution ⁵⁾
Signal (405 – 710 nm)	0.5 cm^-1
Idler (710 – 2600 nm)	1 cm^-1
SH / SF (210 – 405 nm)	1 cm^-1
Pulse and beam parameters
Pulse duration ⁶⁾	~7 ns
Linewidth ⁷⁾	< 3 cm^-1
Typical beam diameter ⁸⁾	4.5 mm × 2.5 mm
Beam pointing stability ⁹⁾	≤ 50 μrad RMS
Polarization
Signal	horizontal
Idler	horizontal
SH / SF	horizontal
PUMP LASER ¹⁰⁾
Pump wavelength	355 nm
Typical pump pulse energy	0.3 mJ
Pulse duration	~7 ns
Beam quality	near Gaussian in near and far fields
Beam divergence	< 1.5 mrad
Pulse energy stability (StdDev)	< 2.5 %
Pulse repetition rate	10 kHz
Nominal lifetime for pump diodes	20 000 hours
Typical warm-up time ¹¹⁾	15 min
PHYSICAL CHARACTERISTICS
Laser head size (W × L × H)	400 × 790 × 166 ± 3 mm
Power supply unit size (W × L × H)	553 × 510 × 529 ±3 mm
Umbilical length	3 m
OPERATING REQUIREMENTS
Cooling ¹²⁾	built-in chiller
Clean air purge	built-in
Room temperature	18 – 27 °C
Ambient temperature stability	±2 ºC
Relative humidity	20 – 80 % (non-condensing)
Power requirements	100 – 240 V AC, single phase 50/60 Hz
Power consumption	< 1 kW
Cleanliness of the room	not worse than ISO Class 9

Due to continuous improvement, all specifications are subject to change. Parameters marked typical are illustrative; they are indications of typical performance and will vary with each unit we manufacture. Unless stated otherwise, all specifications are measured at 450 nm.
Hands-free tuning range is from 210 nm to 2600 nm. Wavelengths values at margins are rounded.
Measured at 450 nm. See tuning curves for typical outputs at other wavelengths.
Measured at 230 nm. See tuning curves for typical outputs at other wavelengths.
For manual input from PC.
FWHM measured with photodiode featuring 1 ns rise time and 300 MHz bandwidth oscilloscope.
In signal and idler range. Linewidth is <5 cm⁻¹ for 210 – 405 nm range.
Beam diameter is measured at 450 nm at the 1/e² level and can vary depending on the pump pulse energy.
Beam pointing stability is evaluated as movement of the beam centroid in the focal plane of a focusing element.
Laser output will be optimized for OPO operation and specifications may vary with each unit we manufacture.
Starting from 22 ºC.
Air cooled. Water cooled under request.

Note: The laser and auxiliary units must be settled in such a place void of dust and aerosols. It is advisable to operate the laser in air conditioned room, provided that the laser is placed at a distance from air conditioning outlets. The laser should be positioned on a solid and flat worktable in horizontal position. Access from one side should be ensured. Intensive sources of vibration should be avoided near the laboratory (ex. railway station or similar).

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.