Picosecond and Femtosecond Fiber Lasers for OEM Integration – Rainbow OEM

Rainbow OEM Series from NPI Lasers

The Rainbow OEM series comprises four compact ultrafast fiber lasers for integration into optical and spectroscopic systems. The available models cover wavelengths from the green to the near-infrared spectral range and provide either picosecond or femtosecond pulses.

All four models can be controlled remotely via software. Depending on the wavelength and pulse parameters required, the laser output is provided as a spatially collimated beam or through a polarization-maintaining single-mode fiber.

Features

Wavelength options from 532 to 1560 nm
Picosecond and femtosecond pulse configurations
Compact designs for OEM integration
Remote control via software
Average power stability below 0.5% RMS over 12 hours
Free-space or polarization-maintaining fiber output, depending on the model

Further information

Four Models for Different Integration Requirements

The Rainbow OEM series covers four wavelength ranges and two pulse-duration regimes. The Rainbow 532 OEM and Rainbow 1064 OEM generate picosecond pulses, while the Rainbow 780 OEM and Rainbow 1550 OEM provide femtosecond pulses.

In addition to wavelength and pulse duration, the output configuration is an important selection criterion. The 532 and 780 nm models provide a spatially collimated output as standard. The 1064 and 1550 nm models use a polarization-maintaining single-mode fiber with an FC/APC connector.

Choosing the Right Rainbow OEM Model

Choose this model if you need …	Recommended model	Key reason
Green picosecond excitation	Rainbow 532 OEM	532 nm output; optionally fiber-pigtailed
Femtosecond pulses around 780 nm	Rainbow 780 OEM	Typically 80 fs; free-space output
High-power picosecond fiber output	Rainbow 1064 OEM	>200 mW; PM fiber output
Femtosecond pulses around 1550 nm	Rainbow 1550 OEM	<80 fs; PM fiber output; optional AOM

Rainbow 532 OEM – Green Picosecond Excitation
Choose this model for fluorescence lifetime imaging, TCSPC and nonlinear-optical applications requiring 532 nm output. A fiber-pigtailed configuration is optionally available.

Rainbow 780 OEM – Femtosecond Pulses for THz Systems
Designed for applications requiring pulses around 80 fs at 780 nm, particularly terahertz generation, THz time-domain spectroscopy and two-photon polymerization.

Rainbow 1064 OEM – High-Power Picosecond Fiber Output
The preferred option for amplifier seeding, supercontinuum generation and laser metrology requiring more than 200 mW and PM fiber delivery.

Rainbow 1550 OEM – Femtosecond Fiber Output in the NIR
Suitable for near-infrared ultrafast systems requiring pulses below 80 fs, PM fiber delivery and flexible repetition-rate options.

APPLICATIONS

Applications depend on the wavelength and pulse characteristics of the selected model:

Fluorescence lifetime imaging and TCSPC – Rainbow 532 OEM
Terahertz generation and THz time-domain spectroscopy – Rainbow 780 OEM and Rainbow 1550 OEM
SHG/THG imaging – Rainbow 532 OEM, Rainbow 780 OEM and Rainbow 1550 OEM
Two-photon polymerization – Rainbow 780 OEM
Amplifier seeding – Rainbow 1064 OEM
Supercontinuum generation – Rainbow 1064 OEM
Laser metrology – Rainbow 1064 OEM and Rainbow 1550 OEM
Nonlinear optics – all models
General-purpose ultrafast laser source – all models

Models and Key Specifications

Model	Central Wavelength	Pulse Width (FWHM)	Repetition Rate	Average Power	Output
Rainbow 532 OEM	532 ± 10 nm	<15 ps	50 MHz; 20–50 MHz optional	>20 mW	Spatially collimated; fiber-pigtailed version optional
Rainbow 780 OEM	780 ± 10 nm	<100 fs; typically 80 fs	80 MHz	>60 mW	Spatially collimated
Rainbow 1064 OEM	1064 ± 2 nm	<15 ps	50 MHz; 20–50 MHz optional	>200 mW	PM single-mode fiber, FC/APC
Rainbow 1550 OEM	1560 ± 10 nm	<80 fs	80 MHz; 50–100 MHz optional	>100 mW; up to 200 mW	PM single-mode fiber, FC/APC

Additional Laser and System Specifications

Parameter	Specification
Average power stability	<0.5% RMS over 12 hours at 25 °C
Polarization extinction ratio	>20 dB
Supply voltage	12 VDC
Operating temperature	15–35 °C
Operating humidity	20–80%, non-condensing
Cooling	Air cooling

Additional Model-Specific Specifications

Model	Additional Specification
Rainbow 532 OEM	TEM₀₀ beam; M² <1.3
Rainbow 780 OEM	Pulse energy >0.75 nJ
Rainbow 1064 OEM	1 m pigtail, customizable
Rainbow 1550 OEM	Pulse energy >1.25 nJ; 1 m pigtail, customizable up to 5 m; optional AOM module for repetition rates below 1 MHz