Ultra-compact, light-weight integrated Near-Infrared (NIR) tunable laser system.
Tuning Range
650 – 2400 nm
Peak OPO Energy
13 mJ @ 750 nm

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Opolette 532 LD

The Opolette tunable laser series utilizes optical parametric oscillator (OPO) technology to generate wavelengths over a broad range in the NIR. Designed for portability, the entire laserhead fits into a 7×12” footprint and ships completely sealed to protect optical components from the environment. Requiring no installation, the system includes verification hardware to check alignment after shipping or relocation. All tunable beams exit the system from the same port resulting in one beam path to the end-user’s application. Wavelength tuning is motorized and computer-controlled.

Product Features

  • Hermetically sealed, light-weight, compact tunable laser system
  • Integrated pump laser with quick connect cables
  • End-user replaceable flashlamp (50 million shot lifetime) and DI cartridge
  • All tunable wavelengths output from a single port
  • Alignment verification
  • Computer-controlled tuning via control software/software development kit (SDK)
  • Flashlamp and/or Q-Switch external triggering
  • Temperature controlled, motorized Harmonic(s) (MH)
  • Real-time wavelength monitoring (WM)
  • Harmonic Auto-Optimization (HAO)
  • Access to residual beams
  • WARRANTY: One year on the entire system. Includes all options except fibers.

Product Options

  • Protective Hard Shell Cases (PHSC)
    Includes two protective hard cases with custom foam padding.
  • External Motorized Variable Attenuator (eMVA)
    End-user installable/removable. Reduces max OPO by 10-15% when installed. Computer-controlled. Can only be used with visible and near-infrared wavelengths.
  • Fiber Delivery Kit (FD)
    Can be optimized for either ultra-violet (UV), visible (VIS), or near-infrared (NIR) tuning ranges.
    Externally mounted fiber delivery kit includes mounts, coupling lens and fiber. Fiber specifications: 2.5 m long, 1 mm diameter core, NA = 0.22
  • Extended Warranty (EXW)
    Extends full system warranty for one additional year, for a total of two years. Includes all options except for fibers.


Opolette HE 532 LD

Tuning Range 650 – 2400 nm
Peak Energy 12 mJ @ 750 nm
Repetition Rate 20 Hz
Pulse Width 5 – 7 ns
Beam Diameter 4 mm
Divergence 2 mrad


Photoacoustic Imaging

In photoacoustic Imaging, laser pulses are delivered to biological tissues.  Energy is absorbed by specific tissues and converted into heat which generates an ultrasonic emission that can be detected by ultrasonic transducers.  Variations in these emissions are analyzed to produce images.  Due to the varied response of components in biological tissue, images include information about the function of the examined tissues.  For example, photoacoustic imaging allows the researcher to measure the oxygen level or movement of blood in real-time.

Photoacoustic imaging has been used for a variety of applications.  For example, it has been used to provide images of biological structures for increased visibility during surgery.  It also shows promise as a method to promote the early detection of cancer, as cancer cells absorb and respond to light differently than healthy tissues.

As the wavelength that is absorbed varies for different biological materials, tunability to produce different wavelengths is important.  Tunability also allows for deeper penetration by minimizing absorption by intervening tissues while targeting a specific tissue type. OPOTEK’s products represent the leading technology for easy tunability. OPOTEK’s patented fast-tuning technology ensures that many wavelengths can easily be produced to image a variety of biological materials.  Fast-tuning also helps to mitigate variations in the field of view due to motion between consecutive images, which allows for more detailed imaging of moving biological processes like blood flow.

The design of OPOTEK’s Ring Oscillator OPO is more stable and less sensitive to alignment than linear oscillators.  This increases the reliability and durability of OPOTEK systems, as there is less risk of misalignment or damage to crystals.  In addition, all of OPOTEK’s Opolette and Phocus series laser systems support special alignment tools that allow precise positioning of all the optical components.

Contact Sales for further information on how OPOTEK can meet your specific photoacoustic imaging needs.



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