Laser Doppler Velocimetry Lasers

What are Laser Doppler Velocimetry Lasers?

Laser Doppler velocimetry is a method for measuring the velocity of transparent, or semi-transparent fluids.  This process relies on a shift in frequency of the output beam to calculate the speed at which the fluid is moving.  Unlike its counterpart, particle imaging velocimetry, the Doppler variation does not require a particle to be added to the flow reducing the sample preparation and contamination.  It must be noted though that the signal detection and processing can be somewhat complicated.   Since this change in frequency tends to be relatively small, it is essential that the laser source is highly coherent and stable. For this reason, single-frequency continuous-wave laser sources are ideal.  On this page, you will find our full range of single-frequency laser sources for this application

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Series

Picture Part Number Type Wavelength (nm) Output power (W) Mode Output Linewidth
1030L-1XB: 1030nm Laser (DPSS; MATCHBOX 2) 1030L-2XB CW DPSS Lasers 1030 0.200, 0.300, 0.400 Single-Mode Lasers, Multimode Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
1064L-2XB: 1064nm Laser (SLM DPSS; MATCHBOX 2) 1064L-1XB CW DPSS Lasers 1064 0.025, 0.300, 0.400, 0.500 Single-Mode Lasers, Multimode Free Space, MM Fiber, SM Fiber, PM Fiber, SMA Port
1064L-2XB: 1064nm Laser (SLM DPSS; MATCHBOX 2) 1064L-2XB CW DPSS Lasers 1064 0.200, 0.300, 0.400 Single-Mode Lasers, Multimode Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
320 NX CW DPSS Lasers 320 0.050, 0.100, 0.200 Single-Mode Lasers Free Space Narrow
349 NX CW DPSS Lasers 349 0.050, 0.100, 0.150, 0.200 Single-Mode Lasers Free Space Narrow
IO Matchbox 405nm Laser 405L-2XA LD Module 405 0.020, 0.040, 0.050 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
488L-2XA: 488nm SLM Laser (VBG Diode; MATCHBOX 2) 488L-2XA LD Module 488 0.010, 0.015, 0.030 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
520L-2XA: 520nm SLM Laser (VBG Diode; MATCHBOX 2) 520L-2XA LD Module 520 0.025, 0.035, 0.040 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
633L-2XA: 633nm SLM Laser (VBG Diode; MATCHBOX 2) 633L-1XA LD Module 633 0.035, 0.060, 0.080, 0.090 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber
633L-2XA: 633nm SLM Laser (VBG Diode; MATCHBOX 2) 633L-2XA LD Module 633 0.035, 0.040, 0.070 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
638L-2XA: 638nm SLM Laser (VBG Diode; MATCHBOX 2) 638L-2XA LD Module 638 0.060, 0.080, 0.100 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
638L-2XA: 638nm SLM Laser (VBG Diode; MATCHBOX 2) 638L-4XA LD Module 638 0.300, 0.500 Multimode Free Space, MM Fiber Narrow
783L-2XA: 783nm SLM Laser (VBG Diode; MATCHBOX 2) 783L-2XA LD Module 783 0.070, 0.080, 0.110 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
785L-2XA: 785nm SLM Laser (VBG Diode; MATCHBOX 2) 785L-2XA LD Module 785 0.080, 0.100, 0.130 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
785L-4XA: 785nm Laser (HP VBG Diode; MATCHBOX 2) 785L-4XA LD Module 785 0.700, 0.800, 1.0 Multimode Free Space, MM Fiber Narrow
830L-2XA: 830nm SLM Laser (VBG Diode; MATCHBOX 2) 830L-2XA LD Module 830 0.050, 0.070, 0.080 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
LBX-633S LD Module 633 0.040 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
LBX-808 LD Module 808 0.200 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber
LBX-830 LD Module 830 0.100 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber
LBX-830S LD Module 830 0.100 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
LBX-915 LD Module 915 0.200 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber
LCX-1064S CW DPSS Lasers 1064 0.100, 0.200, 0.300, 0.500 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
LCX-532S CW DPSS Lasers 532 0.050, 0.100, 0.150, 0.200, 0.300 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
LCX-553S CW DPSS Lasers 553 0.050, 0.100 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
LCX-561S CW DPSS Lasers 561 0.050, 0.100, 0.150, 0.200 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
LSX-785S LD Module 785 0.150 Single-Mode Lasers Free Space, MM Fiber, SM Fiber, PM Fiber Narrow
Solo-640 Solo-640 CW DPSS Lasers 640 0.500, 0.750, 1.0 Single-Mode Lasers Free Space Narrow

Matchbox Series

R1Z4-Matchbox Laser

The Matchbox series offers excellent performance and reliability in the “World’s Smallest” ultra-compact, all-in-one, integrated laser head. They can operate on a 5V power supply while maintaining low noise operation. The monolithic design of the Matchbox Series laser includes thermally stabilized optics in a hermetically sealed housing, ensuring reliable and maintenance-free operation. This series is available in wavelengths from 405 nm thru 1064nm, with options for collimated beam or fiber-coupled output, and single-mode and multimode version.

Skylark Series

The Skylark series of ultrareliable, high performance, CW single-frequency lasers are available at a variety of wavelengths with high average powers, making them well suited for a variety of highly specialized scientific and industrial applications. BRaMMS Technology® enables superior performance, high output powers, and outstanding beam properties in an overall compact footprint. The Skylark series of lasers are utilized in a range of applications including holography, metrology, spectroscopy, and quantum technology.

LaserBoxx SLM Series

The LaserBoxx-SLM series are single longitudinal mode (SLM) CW diode laser modules available in green, yellow, red, and NIR wavelengths, delivering ultra-narrow linewidths, with excellent temperature stability and low noise current. Embedded firmware locks the laser on the same mode at each startup. This customizable, compact, self-contained laser module is available in turn-key or OEM versions and utilizes a proprietary alignment-free, monolithic resonator, and comes standard with a graphic user interface with remote diagnostics via USB, RS232, or direct I/O interface. With modulation capabilities and adjustable power options, the SLM Series is versatile and adaptable to a wide range of applications.

LaserBoxx Low Noise Series

The LaserBoxx Low Noise series of CW diode laser modules, with a variety of wavelengths from 375 to 785nm and output powers up to 350mW, offers highly customizable laser solutions for OEM and plug & play modules. With advanced features such as excellent beam quality, stability, and modulation capabilities, our lasers provide ultra-low noise and a wide range of options for SM, MM, and PM fiber coupling. Our dedicated control software, USB and RS232 interfaces, and external controller with power display make integration, operation, and remote diagnostics a breeze. Additionally, our rugged and compact design and wide variety of standard wavelengths ensure that our lasers can meet your specific needs.