Phocus HE Mini

Designed for portability, the Phocus Mini generates nanosecond, NIR pulse energies for photoacoustic imaging applications that require less power. The entire laserhead fits into a 7x12” footprint and ships completely hermetically sealed to protect optical components from the environment. Requiring no installation, the system includes verification hardware to check alignment after shipping or relocation. The size of the system eases integration of the light source inside commercial instrumentation with space constraints. Wavelength tuning is motorized and computer controlled.

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Wavelength Range [nm]:

690 – 950

Peak OPO Energy [mJ]:


Spectral Linewidth [cm-1]:

30 – 80

Beam Divergence [mrad]:

< 10 (FWHM)

Linear Polarization:


UV Tuning [nm]:


Residual Pump Energy [mJ]:


Dimensions [in (mm)]:

12.0 (305) x 7.0 (178) x 4.9 (125)

Pump Wavelength [nm]:


Repetition Rate [Hz]:


Pulse Length [ns]:


Beam Diameter [mm]:


Trigger Connections:


PSU Dimensions [in(mm)]:

17 (432) x 14.2 (361) x 5.3 (135)

PSU Cooling:

Closed-loop air-water cooled

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Option 3 Group

Fiber Delivery Kit

Simplify delivery of tunable laser light by choosing the Fiber Delivery Kit. Propagation of laser light through an optical fiber 'homogenizes' the beam and transform the profile into a flat top-hat. A flexible metal sheath protects the fiber.  The transmission percentage depends on the coupling efficiency into the fiber. By default, the factory optimizes the coupling efficiency for the Signal range, however other factory optimized wavelength ranges available upon request. The Fiber Delivery Kit includes a 1 mm diameter optical fiber with 0.22 NA, focusing/imaging optics/mounts and SMA on input/output connectors. End-user installs fiber hardware outside the system following alignment instructions. Removal of fiber hardware allows free-space access. Integrated, alignment-free fiber delivery available upon request (no free-space access).

Option 5 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 pulse energy stability. The MVA option connects through the electronics unit for computer control. The MVA option is external and therefore can  be removed for full OPO pulse energy access. It can be reinstalled without need for alignment.

Option 9 Group

Protective Hard Case

The Opolette is designed for portability which allows the end-user to move the system to different locations. The standard wooden shipping crate can be replaced with two protective hard cases with custom foam padding to facilitate packing and moving the system between locations.

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