Tunable Lasers

Tunable LasersTunable lasers using an optical parametric oscillator (OPO) are capable of producing continually tunable output wavelengths from 410 nm to 2300 nm, and with the addition of a second harmonic generation stage, the wavelength range can be extended down to 210 nm. Furthermore, the wavelength range for the new IR configuration is from 1380 nm to 4500 nm. Additionally, integral compact spectrometers for real-time monitoring of OPO output wavelength are available. These pulsed lasers provide a variable pulse repetition rate up to 100Hz, with a typical pulse width of 5ns and pulse energy or 5 mJ.  With spectral linewidth, less than 6 wavenumbers, these compact, low power consumption tunable lasers are ideal for non-linear spectroscopy, photo-acoustic imaging, metrology, and remote sensing applications.

Our Products

RPMC Lasers offers a selection of tunable lasers including a pulsed DPSS laser that uses an Optical Parametric Oscillator (OPO) to produce tunable wavelengths in the 210/410 – 2300 nm range as well as an IR version producing wavelengths in the 1380 – 4500 nm range. Its advanced laser design results in a compact, user-friendly turnkey system that requires little maintenance. It integrates all laser electronics into the housing and there are no chillers or bulky power supplies needed.

We also provide several tunable, distributed feedback (DFB) quantum cascade lasers (QCLs) with wavelengths ranging from 11.3 µm to 16µm, designed for use in the detection and monitoring of critical, gaseous compounds in the industrial and nuclear industries.

Let Us Help

In conclusion, if you have any questions, or if you would like some assistance please contact us here. Furthermore, you can call us at 636.272.7227 to talk to a knowledgeable Product Manager. Alternatively, use the filters on this page, or check out our ‘How to Select a Pulsed Laser‘ page to assist in narrowing down the selection. Finally, head to our Knowledge Center with our Lasers 101 page and Blogs and Whitepapers pages for further, in-depth reading.

Suggested Reading

Firstly, check out our Blogs:

Finally, check out this Whitepaper:

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Wavelength Selection

Power Selection

Energy Selection

Pulse Width Selection

Rep Rate Selection


Picture Part Number Type Wavelength (nm) Output power (W) Pulse energy (uJ) Pulse width Rep rate Q-switch type
Q-TUNE tunable DPSS laser Q-TUNE-IR Pulsed DPSS Lasers, Tunable Lasers Tunable 0.020, 0.065 2000.0, 6500.0 3ns - 4ns 10Hz Active
Q-TUNE tunable DPSS laser Q-TUNE Pulsed DPSS Lasers, Tunable Lasers Tunable 0.200 8000.0 5ns 10Hz, 33Hz, 100Hz Active

Q-TUNE Series


The Q-TUNE series is a high energy, compact, tunable wavelength laser consisting of an Optical Parametric Oscillator (OPO) capable of producing a tunable wavelength range of 410-2300 nm with a linewidth narrower than 6 cm-1. Optional second harmonic generator extends the tuning range to 210-410 nm.
The combination of a pulse duration shorter than 5ns and an upper repetition rate of 100Hz, makes the Q-TUNE a perfect coherent light source for temporally resolved spectroscopy, metrology, photo-acoustic imaging and remote sensing applications.

Q-TUNE-IR Series

Q-TUNE-IR The Q-TUNE-IR uses an Optical Parametric Oscillator (OPO) to produce tunable wavelength in 1380 – 4500 nm range with a linewidth less than 10 cm-1, achieving > 6.5mJ of pulse energy @ 3500nm for the F-10 configuration (> 2mJ @ 3500nm for C-10) with a 10Hz repetition rate. A broadband version with linewidth up to 200 cm-1 is also available by request.  The Q-TUNE-IR requires little maintenance, with all laser electronics integrated into the housing, including an air-cooling system, eliminating the need for chillers, or large power supplies, all while providing a guaranteed pump diode lifetime greater than 2 giga-shots.