Laser coherence length is defined as the distance over which the beam can travel without experiencing a phase discontinuity. This is a critical parameter in applications such as holography and interferometry where beams may be required to split with each leg going a long distance before being recombined. The coherence length is directly related to the linewidth of the laser. As a result, long coherence length lasers are almost exclusively single mode. Here at RPMC Lasers, we offer a wide range of laser diodes and DPSS lasers with a coherence length of more than 1m. We offer a selection of stabilization technologies like distributed feedback (DFB), distributed Bragg reflector (DBR), and volume Bragg grating (VBG) diode lasers. We also have temperature and current stabilized DPSS solutions to better fit your needs.
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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 versions.
The LaserBoxx-SLM series of SLM CW DPSS & diode laser modules are available in wavelengths from 532-1064 nm, delivering ultra-narrow line widths with excellent temperature stability and low noise current. Embedded firmware locks the laser on the same mode at each startup. This customizable, compact laser module is available in turn-key or OEM versions, with GUI for remote operation & diagnostics via USB, RS232, or direct I/O interface, with modulation capabilities and adjustable power options.
The LaserBoxx Low Noise series of CW diode laser modules & DPSS lasers offer wavelengths from 375 to 785nm, output powers up to 500 mW, and OEM & plug-&-play modules. These rugged, compact & highly customizable lasers also offer excellent beam quality & stability, modulation capabilities, ultra-low noise output & 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.
The R series of wavelength-stabilized single-mode and multimode laser diodes offer narrow linewidth output in wavelengths from 633nm thru 1064nm, with output powers up to 5 W. This highly customizable series offers package options ranging 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. The R series is the perfect source for various markets, including chemical analysis, bio-medical, fiber laser, and scientific applications.