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High-Power Picosecond and Femtosecond Lasers from 515 to 1970 nm – Rainbow HP

Rainbow HP Series from NPI Lasers

The Rainbow HP series comprises high-power picosecond and femtosecond laser systems covering wavelengths from 515 nm to approximately 2 µm. Depending on the model, the lasers provide average output powers from more than 200 mW to more than 5 W, with pulse durations below 10 ps or as short as 150 fs.

The series includes frequency-converted visible systems as well as high-power sources around 780 nm, 1 µm, 1.55 µm and 2 µm. This allows users to select a source according to wavelength, pulse duration, average power and application requirements.

Rainbow HP lasers are designed as fully integrated, turn-key systems for scientific and industrial applications including microscopy, spectroscopy, nonlinear optics, terahertz generation and photonics research.

Features

Picosecond and femtosecond models from 515 to 1970 nm
Average output powers from >200 mW to >5 W
Visible, near-infrared and approximately 2 µm output options
Spatially collimated free-space output
Factory-configurable repetition rates available for selected models
Fully integrated turn-key systems
Air-cooled operation
Model-specific options including multiple wavelengths or reduced repetition rates

Further information

Model Comparison

Model	Spectral Range	Pulse Regime	Central Wavelength	Pulse Width	Repetition Rate	Average Power
Rainbow 515 HP	Green	Femtosecond	515 ± 2 nm	<200 fs	80 MHz; 30–80 MHz optional	>1 W
Rainbow 532 HP	Green	Picosecond	532 ± 1 nm	<10 ps	50 MHz; 20–80 MHz optional	>1 W
Rainbow 780 HP	Near infrared	Femtosecond	780 ± 10 nm	<150 fs	80 MHz	>200 mW
Rainbow 1030 HP	Near infrared	Femtosecond	1030–1060 nm	<200 fs	80 MHz	>5 W
Rainbow 1550 HP	Near infrared	Femtosecond	1560 ± 10 nm	<150 fs	80 MHz	>1 W
Rainbow 2000 HP	Around 2 µm	Femtosecond	1970 ± 10 nm	<300 fs; typically <250 fs	80 MHz	>1 W

Choosing the Right Rainbow HP Model

Choose this model if you need …	Recommended Model	Key Reason
High-power green femtosecond pulses	Rainbow 515 HP	>1 W at 515 nm with <200 fs pulse width
High-power green picosecond pulses	Rainbow 532 HP	<10 ps pulses with a standard 50 MHz repetition rate
Femtosecond pulses around 780 nm	Rainbow 780 HP	<150 fs pulses with optional pulse energy up to 10 nJ
The highest average power in the series	Rainbow 1030 HP	>5 W output and >60 nJ pulse energy
High-power femtosecond output around 1.55 µm	Rainbow 1550 HP	>1 W with <150 fs pulses
Femtosecond output around 2 µm	Rainbow 2000 HP	1970 nm output for mid-IR-related applications

Model-Specific Information

Rainbow 515 HP

The Rainbow 515 HP provides more than 1 W of green output at 515 ± 2 nm with pulse durations below 200 fs. The standard repetition rate is 80 MHz, with factory-configured rates from 30 to 80 MHz stated as optional.

The model combines femtosecond pulse duration with watt-level visible output.

Rainbow 532 HP

The Rainbow 532 HP is the green picosecond model of the series. It provides pulses below 10 ps at 532 ± 1 nm and operates at a standard repetition rate of 50 MHz. Repetition rates from 20 to 80 MHz are available as options.

The manufacturer describes standard configurations between 1 and 5 W and customised versions above 8 W. The formal specification table guarantees more than 1 W.

Rainbow 780 HP

The Rainbow 780 HP is generated by frequency doubling the Rainbow 1550 HP platform. It provides more than 200 mW at 780 ± 10 nm with pulse durations below 150 fs.

The standard pulse energy is above 2.5 nJ, while a 10 nJ version is stated as optional. Configurations providing both fundamental and frequency-doubled output may be available.

Rainbow 1030 HP

The Rainbow 1030 HP is the highest-average-power model in the documented series. It provides more than 5 W between 1030 and 1060 nm, with pulse durations below 200 fs and pulse energies above 60 nJ.

The manufacturer also states that configurations with fundamental and frequency-doubled output ports may be available.

Rainbow 1550 HP

The Rainbow 1550 HP provides more than 1 W at 1560 ± 10 nm with pulse durations below 150 fs and pulse energies above 12.5 nJ.

It is the fundamental source platform associated with the frequency-doubled Rainbow 780 HP and may be configured with fundamental and frequency-doubled output ports.

Rainbow 2000 HP

The Rainbow 2000 HP extends the series to approximately 2 µm. It provides more than 1 W at 1970 ± 10 nm with pulse durations below 300 fs and typically below 250 fs.

The standard repetition rate is 80 MHz. According to the product description, an optional high-speed AOM module can reduce the repetition rate to below 1 MHz.

Applications

Microscopy and Microfabrication

Two-photon and multi-photon microscopy
Two-photon polymerization
Two-photon lithography

Potentially relevant to the visible and near-infrared models, depending on wavelength, pulse duration and required power.

Nonlinear and Quantum Optics

Ultrafast and nonlinear optics
Quantum optics
Optical metrology
Frequency conversion
Pump-probe experiments

Terahertz Applications

Terahertz generation
Ultrafast excitation
Nonlinear optical research

Particularly highlighted for the Rainbow 780 HP, Rainbow 1550 HP and other femtosecond models in the NPI material.

Mid-IR and Photonics Research

Mid-IR frequency conversion
Mid-IR spectroscopy
Silicon photonics
Nonlinear optics

Specifically stated for the Rainbow 2000 HP.

Specifications

Laser Specifications

Primary Laser Parameters

Parameter	515 HP	532 HP	780 HP	1030 HP	1550 HP	2000 HP
Central wavelength	515 ± 2 nm	532 ± 1 nm	780 ± 10 nm	1030–1060 nm	1560 ± 10 nm	1970 ± 10 nm
Pulse width	<200 fs	<10 ps	<150 fs	<200 fs	<150 fs	<300 fs; typically <250 fs
Standard repetition rate	80 MHz	50 MHz	80 MHz	80 MHz	80 MHz	80 MHz
Optional repetition rate	30–80 MHz	20–80 MHz	Not specified	Not specified	Not specified	Below 1 MHz with optional AOM stated in text
Average power	>1 W	>1 W	>200 mW	>5 W	>1 W	>1 W
Pulse energy	Not specified	20–100 nJ stated in text	>2.5 nJ; 10 nJ optional	>60 nJ	>12.5 nJ	>12.5 nJ

Beam and Stability Parameters

Parameter	515 HP	532 HP	780 HP	1030 HP	1550 HP	2000 HP
Average power stability	<1% RMS	<1% RMS	<0.5% RMS	<0.5% RMS	<0.5% RMS	<0.5% RMS
Test conditions	12 h at 25 °C	12 h at 25 °C	12 h at 25 °C	12 h at 25 °C	12 h at 25 °C	12 h at 25 °C
Beam quality	M² <1.2	M² <1.2	Not specified	Not specified	Not specified	Not specified
Polarization extinction ratio	>20 dB	>20 dB	>20 dB	>20 dB	>20 dB	>20 dB
Output type	Spatially collimated	Spatially collimated	Spatially collimated	Spatially collimated	Spatially collimated	Spatially collimated

Electrical, Environmental and Mechanical Specifications

Common Operating Conditions

Parameter	Specification
Supply voltage	100–240 VAC
Operating temperature	15–35 °C
Operating humidity	20–80%, non-condensing

Dimensions and Cooling

Model	Laser System Dimensions	Control Box Dimensions	Cooling
Rainbow 515 HP	Laser head: 710 × 380 × 137.2 mm	522 × 365 × 156 mm	Air cooling
Rainbow 532 HP	Fundamental unit: 401 × 342 × 106 mm; frequency-doubling unit: 375 × 197 × 84 mm	Not separately specified	Air cooling
Rainbow 780 HP	Laser head: 448 × 226 × 135 mm	538 × 365 × 156 mm	Air cooling
Rainbow 1030 HP	Laser head: 434 × 330 × 134 mm	524 × 365 × 156 mm	Air cooling
Rainbow 1550 HP	Laser head: 448 × 226 × 135 mm	538 × 365 × 156 mm	Air cooling
Rainbow 2000 HP	Laser head: 448 × 300 × 134 mm	538 × 365 × 156 mm	Air cooling