DPSS Laser Selection Guide

UV to IR wavelengths Q-switched CW DPSS OEM laser systems

CrystaLaser diode-pumped solid-state lasers are designed for compact scientific, industrial and OEM instruments. Selection starts with output type, wavelength, average power or pulse energy, stability, noise, beam quality, package size and the electrical control interface required by the instrument.

CW Or Q-Switched DPSS Laser

Output type	Typical selection	CrystaLaser pages
CW DPSS laser	Use when the instrument needs continuous optical power, low noise, stable beam pointing and compact operation.	Green lasers, blue lasers, red lasers, infrared lasers
Single frequency CW	Use when narrow linewidth, long coherence length or stable interference is required.	Single frequency laser products, SLM selection guide
Q-switched DPSS laser	Use when the application requires short pulses, high peak power or controlled pulse repetition rate.	Q-switched laser systems, Q-switched laser FAQ
Fiber-coupled output	Use when compact beam delivery, microscope coupling or instrument routing requires fiber output.	Fiber-coupled laser systems

DPSS Laser Selection Parameters

Wavelength                    UV, violet, blue, green, yellow, orange, red or IR
Output format                 CW, single frequency CW, or Q-switched pulse
Average power                 Select for signal level and thermal load
Pulse energy                  For Q-switched marking, ablation and time-resolved use
Repetition rate               Match detector, process speed and pulse energy need
Beam quality                  TEM00 and low M2 for focusing and fiber coupling
Power stability               Standard and ultra-stable options
Noise                         Low noise versions for sensitive instruments
Mechanical package            Laser head, power supply, heat sinking and mounting
Electrical control            TTL on/off, analog modulation and OEM interface options

Wavelength Families

UV DPSS lasers are used for fluorescence, inspection, spectroscopy and micro-processing where short wavelength is required.
Violet and blue lasers are compact choices for fluorescence, Raman excitation and instrumentation.
Green DPSS lasers are common for Raman, holography, interferometry, laser trapping and inspection.
Yellow and orange lasers support specialized biomedical, fluorescence and atomic physics applications.
Red and infrared lasers cover He-Ne replacement, sensing, metrology, seeding and OEM instrument use.

Application Review

For Raman spectroscopy, also review the Raman laser selection guide.
For long coherence length or interferometry, also review the single frequency laser selection guide.
For instruments with possible back reflection, specify whether an optical isolator is required.
For OEM laser integration, include wavelength, power, size limit, heat sinking, voltage, modulation and duty cycle in the Information Request Form.

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