The RADIANT tunable laser series utilizes optical parametric oscillator technology to generate wavelengths over a broad range in the NIR. Integration of system components into one compact unit increases ruggedness, minimizes misalignment and allows the user to reposition the system. Included verification hardware enables the user to confirm that beam paths are preserved after shipment or relocation. Hermetically sealed modules protect sensitive optical materials from the environment. All tunable beams exit the system from the same port resulting in one beam path to the end-user’s application. Wavelength tuning is hands-free and PC controlled.

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Wavelength Range [nm]:

680 - 2500

Peak OPO Energy [mJ]:

55 (85)

Spectral Linewidth [cm-1]:

10 - 15

Beam Divergence [mrad]:

< 2 (Signal, FWHM)

Linear Polarization:

Horizontal (Signal); Vertical (Idler)

UV Tuning [nm]:


Residual Pump Energy [mJ]:

40-50 (80-90)

Dimensions [in (mm)]:

27.5 (699) x 16.5 (419) x 11.0 (279)

Pump Wavelength [nm]:


Repetition Rate [Hz]:

10 or 20

Pulse Length [ns]:


Beam Diameter [mm]:

6.5 or 9

Trigger Connections:


PSU Dimensions [in(mm)]:

20 (508) x 11.2 (282) x 20 (508)

PSU Cooling:

Closed-loop air-water cooled

Build Your Product
Option 1 Group

Energy Level

The RADIANT can be configured for two energy levels, as presented in the tuning graphs. Select the desired configuration based on the graph. The outside dimensions are identical.

Option 2 Group

Access to Pump Laser Wavelengths

Optional access to the full power of the pump laser fundamental (1064 nm) and the second harmonic (532 nm) is available. Mounted optics that can be installed by the user (no alignment required), which reflect the desired beams through added ports are provided. The 1064nm beam exits from the front whereas the 532 nm beam exit through a port on the side of the system. Access to the residual 1064nm is also available (532 nm residual already included). In this configuration the beam exits from a port on the side and can be used simultaneously with the OPO.

Option 4 Group

Motorized Variable Attenuator

Vary the OPO pulse energy by choosing the Motorized Variable Attenuator (MVA) option. By default the end-user changes the OPO pulse energy by changing the pump laser pulse energy through software command. However, OPO pulse-pulse energy instability increases at lower pump laser energy levels. The MVA option involves maintaining the pump laser pulse energy at maximum and using optical attenuation to change the OPO pulse energy without compromising energy stability. The MVA option connects through the electronics unit for computer control. Placement of the attenuator results in about 10% optical loss. If needed the MVA can also be removed for full energy access and reinstalled without need for alignment.

Option 3 Group

Fourth Harmonic Generator Extension

A fourth harmonic module can be integrated with the system to generate 266 nm high energy laser beam. The harmonic module, including steering and wavelength separation optics are mounted on an extension attached to the side of the Radiant housing and add 5.2 in (12.7 cm) to the width of the system.

Option 5 Group

Real-time Wavelength Monitoring and Auto Harmonic Optimization

The option includes a built-in wavemeter combined with motorized harmonics. The wavemeter provides real time measurement of the OPO wavelength, which is displayed in the control software screen. The option allows closed-loop tuning of the OPO , which provides better than 1 nm accuracy of the Signal wavelength. In addition, the wavemeter signal serves as a feed-back reference, which can be used to optimize the phase-matching of the harmonics.  Complete automation of phase matching simplifies the procedure to a single click through the Harmonics Auto-optimization software command (included).

Option 6 Group

Software Development Kit

Software Development Kit (SDK) that allows end-users to integrate system control functions into third-party software can be downloaded for no charge. The SDK works under most Windows-based programming environments and provided with limited technical support.

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