Multimode Lasers Overview

The spatial mode structure of a diode laser is determined by the ridge width of the waveguide, similarly as the core of a fiber-optic cable.   For high power multimode laser diodes, the ridge widths are typically on the order of 100 microns, which allows for a much larger volume of material to be actively involved in the lasing process and therefore generate higher laser powers.  Additionally, this provides a larger surface area at the facet reducing the intensity and decreasing the risk of catastrophic optical damage.  Multimode laser diodes are available from both single emitters and diode arrays and come in either free space or fiber coupled configurations.

Here at RPMC Lasers, we offer a wide range of wavelengths from 445nm-1850nm with multimode outputs, including wavelength stabilized bars and single emitters. These multimode diode lasers are the ideal for a diverse range of applications including fiber laser pumping, laser cladding, surface enhanced Raman spectroscopy (SERS), and machine vision.

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Matchbox Series

R1Z4-Matchbox Laser

The Matchbox series of compact laser diode and DPSS laser modules are available in wavelengths from 405nm thru 1064nm. Options include collimated beam or fiber coupled output, and single mode and multimode versions.

BDL Series

BFL-CW1000: 1080nm Single mode Fiber LaserThe BDL Series is a high power direct diode turn-key system available in wavelengths of 915nm or 976nm. This easy to integrate, OEM laser diode module provides up to 3kW of power and unprecedented brightness.

K Series

K445FTRFN-20.00W: 445nm Fiber Coupled Laser Diode

The K Series of multiple single emitter fiber coupled diode lasers are available in wavelengths from 405nm thru 1550nm with up to 300W output powers. These multi-emitter high power and high brightness diode lasers include options for aiming beam, photo detector, TEC, fiber detector, thermistor and a variety of package types.

HL Series


The HL Series of laser diodes are available in a wide range of wavelengths from violet to red and infrared in support of a broad range of applications. These applications include display, medical, biosciences, industrial tools (sensor, leveler), machine vision, scanners, printers and a myriad of other applications being developed in the industry.

JDL Series


The JDL Series of unmounted laser diode bars are available in CW or QCW configurations in wavelength from 760nm – 1064nm. Various emitter configurations and cavity lengths are available offering up to 200W CW and 500W QCW output powers.

JenLas D2

Jenoptik Jenlas 2/3/5/8W

The JenLas D2 series of CW disk lasers with a wavelength of 532nm are available with up to 8W output power. These Nd:YVO4 or Yb:KYW solid state lasers are ideal for industrial micro material processing and medical treatments

JOLD-Open Heatsinks Series

The JOLD-Open Heatsinks Series are high quality high power laser diode bar products. They are available in a range of open heatsinks including the CS, CN, and LK package. And in wavelengths from 780nm – 1064nm.

JOLD-FC Series


The JOLD-FC Series of high quality high power fiber coupled laser diode bar products are offered in wavelengths from 780nm – 1064nm and 30W to 400W output power.

JOLD-Stacks Series

JOLD-450-QAFN-5A: Laser Diode Stack w/ FAC

The JOLD-Stacks Series of high quality high power laser diode bar stacks. They are available with actively (microchannel) cooled or conductively cooled. And in wavelengths from 780nm – 1064nm.

K Stabilized Series


The K Stabilized Series of wavelength stabilized fiber coupled diode lasers are available in wavelengths from 793nm thru 976nm with up to 300W output powers. These multi-emitter high power and high brightness diode lasers include options for aiming beam, photo detector, TEC, fiber detector, thermistor and a variety of package types.

LXCc Series

R2Z3-L4Cc Combiner

The LXCc series is the most compact and flexible all-in-one multicolor laser combiner, with up to 7 laser lines, and up to 500mW output power per line. The turnkey or OEM versions allow a large choice of lasers from 375nm up to 1064nm. The extension module provides the ultimate level of flexibility with up to 4 optical fiber outputs, integrated fast switching output ports for FRAP, or adjustable split power for light-sheet microscopy.

LaserBoxx HPE Series

The LaserBoxx HPE series is a high power laser diode module offering excellent performance and reliability in a compact driver integrated laser head (Industry-standard compact package). It comes in free space multimode elliptical beam or with removable MM fiber coupling.

LDX Series

R1Z8-LDX-3215-735: 735nm Multimode Laser Diode

The LDX Series of high power multimode single emitter laser diodes include wavelengths of 400nm – 1900nm. Available in a wide range of output powers and package types.

LDX-Bar Series

R1Z8-LDX-4319-795: Laser Diode Bar Package

The LDX-Bar Series of multimode laser diode bars packaged on the industry standard CS package. Wavelengths in the red and IR are available and the output power range from 10W to 100W.

LGK Series

LGK 7785-100/150/200/250: 543nm Ultra-Reliable He-Ne Laser Modules

The LGK Series of Gas Lasers include a wide range of HeNe and Argon lasers with wavelengths at 488nm, 515nm, 543nm, 594nm, and 633nm.

QCL Series

mirSense Product Family

The QCL series is a high power pulsed Quantum Cascade Laser based on proprietary technology which incorporates high-powered diodes (typically watt-level) emitting in the main transmission bands of the atmosphere (4.0µm, 4.6µm, 4.8µm, 9.x µm). The ITAR free MirSense technology exhibits outstanding performance in terms of power and wall-plug efficiency. This high-performance QCL laser assembly takes full advantage of MirSense’s state of the art technologies.

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.

RML Series

The RML series of laser diode modules are available with single mode fiber outputs with a set wavelength from 405nm – 2500nm. The compact RML series is available with up to 80mW of output power in a package measuring 15mm in diameter and 40mm in length (without connector) . As an option these modules are offered with a potentiometer for power adjustment, external TTL modulation up to 1MHz and analog modulation up to 100kHz.

WSLD Series


The WSLD series of laser diodes, from WaveSpectrum, are available in a wide range of wavelengths, power levels, and packages. The WSLD wavelength options span from 405nm to 1920nm, with output powers in the range of 20mW to several watts, packaged in standard C, E, and H-Mount packages, as well as a variety of TO-can options.

WSLP Series

R3Z0-WSLP-905-050m-M-PD: 905nm Multimode Fiber Coupled Laser Diode

The WSLP series of fiber coupled laser diodes are variable in both multimode and single mode configurations, with wavelengths from 405nm thru the IR. The highly reliable WSLP series is suitable for a variety of applications such as biological and analytical instrumentation.