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Solid State Lasers and Laser Diodes from RPMC Lasers Inc » Products » Interferometry Lasers

Interferometry Lasers

Interferometry is one of the most versatile optical test and measurement techniques because it allows for sub-wavelength resolution.  In an interferometer, a highly coherent laser source is split into two different optical paths, where one path interacts with the object under test.  Then the two resultant interferometry lasers are recombined on a detector resulting in either spatial or temporal variation in intensity.  These intensity variations are known as fringes, and the spacing between two minima or maxima represents an optical path length difference of one wavelength.  Additionally, it’s important to note that the difference in contrast between the bright and dark portions of the fringe pattern is dependent on the coherence length of the laser.  Therefore, to get the highest contrast ratio from the interferometer, single mode single frequency laser sources are required.  On this page, you will find a list of all of the interferometry lasers we offer ranging in wavelengths from 405 nm to 2.1 microns.

RPMC has years of experience supporting Interferometry applications, helping industry professionals select the right tool for the job.

Contact Us today to let one of our knowledgeable Product Managers assist you!

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Picture Part Number Type Wavelength (nm) Output power (W) Mode Output Linewidth
He-Ne Power Supplies HeNe Lasers 0.002 Single-Mode Lasers Free Space
LGK 7512 HeNe Lasers 594 0.002 Single-Mode Lasers Free Space
LGK 7608 HeNe Lasers 633 0.002 Single-Mode Lasers Free Space
LGK 7610 HeNe Lasers 633 0.002 Single-Mode Lasers Free Space
LGK 7621 HeNe Lasers 633 0.005 Multimode Free Space
LGK 7627 HeNe Lasers 633 0.005, 0.010 Single-Mode Lasers, Multimode Free Space
LGK 7628 HeNe Lasers 633 0.005, 0.007 Single-Mode Lasers Free Space
LGK 7634 HeNe Lasers 633 0.002, 0.003 Single-Mode Lasers Free Space
LGK 7650 HeNe Lasers 633 0.0005, 0.001 Single-Mode Lasers Free Space
LGK 7653 HeNe Lasers 633 0.010 Single-Mode Lasers Free Space
LGK 7654 HeNe Lasers 633 0.010 Single-Mode Lasers Free Space
LGK 7655 HeNe Lasers 633 0.0006, 0.001 Single-Mode Lasers Free Space
LGK 7665 HeNe Lasers 633 0.015, 0.018, 0.020 Single-Mode Lasers Free Space
LGK 7672 HeNe Lasers 633 0.002 Single-Mode Lasers Free Space
LGK 7785 HeNe Lasers 543 0.001, 0.002 Single-Mode Lasers Free Space
LGK 7786 HeNe Lasers 543 0.0005, 0.00075, 0.001, 0.0015 Single-Mode Lasers Free Space
LGR 7608 HeNe Lasers 633 0.0015 Single-Mode Lasers Free Space
LGR 7610 HeNe Lasers 633 0.002 Single-Mode Lasers Free Space
LGR 7621 HeNe Lasers 633 0.002, 0.005 Single-Mode Lasers, Multimode Free Space
LGR 7627 HeNe Lasers 633 0.005, 0.010 Single-Mode Lasers Free Space
LGR 7628 HeNe Lasers 633 0.005 Single-Mode Lasers Free Space
LGR 7634 HeNe Lasers 633 0.002 Single-Mode Lasers Free Space
LGR 7650 HeNe Lasers 633 0.005 Single-Mode Lasers Free Space
LGR 7655 HeNe Lasers 633 0.001 Single-Mode Lasers Free Space
LGR 7656 HeNe Lasers 633 0.0005 Single-Mode Lasers Free Space
LGR 7660 HeNe Lasers 633 0.001 Single-Mode Lasers Free Space
LGR 7695 HeNe Lasers 633 0.00075 Single-Mode Lasers Free Space
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Matchbox Series

R1Z4-Matchbox Laser

The Matchbox series offers excellent performance and reliability in an ultra-compact “all-in-one” integrated laser head.  They come standard with an integrated internal voltage up-conversion that allows using 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.  All the Matchbox series modules include a 12-month warranty and are RoHS compliant.  All of these features make them the ideal laser source for integration into commercial flow cytometers.

Unik Series

UnikLaser Solo-780.24 QT

The Unik series of CW single-frequency lasers, featuring the Solo and Duetto configurations, 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 Unik Lasers Solo and Duetto series are utilized in a range of applications including holography, metrology, spectroscopy, and quantum technology.

LGK Series

The LGK Series of HeNe Lasers feature a robust mechanical design, excellent beam quality, and a variety of configurations. These HeNe lasers are available in the Green, Yellow, and Red spectral ranges, and boast an excellent TEM00 beam, robust mechanical design, and a long service life of up to 30,000 hours. 543 nm, 594 nm, and 632.8 nm (633 nm) wavelengths are available, with output power levels from 0.5 mW to 20 mW.

LaserBoxx SLM Series

The LaserBoxx-SLM Series is a single longitudinal mode (SLM) CW diode laser module available in wavelengths at 633nm, 785nm, and 830nm delivering ultra-narrow linewidths thanks to its excellent temperature stability and low noise current. The Oxxius proprietary, embedded firmware locks the laser on the same mode at each startup. This 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.

LGR Series

The LGR Series of Helium-Neon replacement tubes include different output powers, polarizations, and beam sizes.

R Series

R Series

The R series of wavelength stabilized single mode and multimode laser diodes offer narrow wavelength spectrum in wavelengths from 633nm thru 1064nm. Package options range from components as basic as a TO-56 or 14-pin BF packaged diodes, to OEM modules including electronics, to UL/CE and IEC certified turn-key systems.

REP Series

The REP series includes tunable single-frequency (DFB-like) diode lasers and Fabry-Perot laser diodes in wavelengths from 1270nm thru 2350nm for communications, sensing and measurement applications.

The REP Series is specifically engineered for applications such as gas sensing, LIDAR, metrology, and optical communications. Multiple packaging options are available including the Fiber coupled 14-pin butterfly, TO39 (w/TEC), and TO56.

For a complete module incorporating the fiber coupled butterfly package with an integrated current driver and TEC controller, designed for ease of operation, it is the ideal platform for high stability gas detection or remote sensing.  See the DX1 Series.