Phocus Mobile

The Phocus Mobile transforms the Phocus tunable laser system into a light-sealed, transportable cart designed for deployment into pre-clinical environments. A customizable fiber bundle delivers light from the system to the photoacoustic imaging instrumentation and includes safety-interlocks to prevent system operation without fiber attachment. High-quality, rubberized casters and vibration isolation platform protect the system from shock during transportation. Motorized harmonics and Fiber Bundle delivery (1:1 circular input/output; 5 mm dia.; 2.5 m length) provide a completely, automated system that connects through USB for hands-free, computer control.

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Wavelength Range [nm]:

690 – 950

Peak OPO Energy [mJ]:

See tuning curve

Spectral Linewidth [cm-1]:

30 – 100

Beam Divergence [mrad]:

Fiber bundle delivery

Linear Polarization:

Fiber bundle delivery

UV Tuning [nm]:


Residual Pump Energy [mJ]:


Dimensions [in (mm)]:

30.0 (762) x 19.0 (483) x 43 (1092)

Pump Wavelength [nm]:


Repetition Rate [Hz]:

10 or 20

Pulse Length [ns]:


Beam Diameter [mm]:

Fiber bundle delivery

Trigger Connections:


PSU Dimensions [in(mm)]:


PSU Cooling:

Closed-loop air-water cooled

Build Your Product
Option 1 Group

Energy Level

The Phocus Mobile 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

Select choice of pump laser wavelengths for residual power access. Residual pump laser wavelengths exit the system from front, interlocked apertures simultaneous with OPO laser light. Automated shutters blocks the light when not in use. Fiber bundle delivery of pump laser wavelengths requires an attenuator to set the pump energy to safe operating limits. The amount of residual pump laser wavelength energy varies depending on the harmonic or OPO conversion efficiency.

Option 3 Group

Access to Idler

Extend the tunable range of the Phocus system further into the near-infrared with access to the Idler. All tunable beams exit the system from the same port. Option includes automated range selection for seamlessly switching between Signal and Idler and continuous scan over the entire tunable range.

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 by the factory results in about 10% optical loss and is not removeable.

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

Real-time Energy Monitoring

The output energy of the OPO can be measured and displayed on the control software screen in real time. The measured pulse-pulse energy is digitized and available for data normalization, therefore significantly reducing the effects of pulse to pulse OPO variations on image creation. In place of the Wavemeter kit, the option can include motorized harmonics that replaces the default manual control mechanism for harmonic phase matching optimization. Combined with the Powermeter signal as a feedback mechanism, complete automation of phase matching simplifies the procedure to a single button click through the Harmonics Auto-optimization software command.


Option 8 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.

Option 9 Group

Fast Tuning

This option (patent pending) enables fast switching of the output wavelength such that each consecutive pulse can be set to any wavelength within the wavelength range of the system. The user can enter a sequence of wavelengths into the control software, with any step size (zero to full range) in any order, and the system will generate these wavelengths pulse after pulse. It can be set to stop after a single sequence or to repeat the sequence as defined by the end-user.

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