A blue laser emits electromagnetic radiation (laser light) within the blue spectral region, which we define as being between 420 nm and 499 nm.
Blue laser wavelengths are on the shorter end of the visible spectrum. With shorter wavelengths, comes a couple of benefits, such as a smaller minimum spot size, and stronger absorption in materials. The minimum focused spot size of a laser beam is limited by the wavelength. Therefore, the shorter the wavelength the more tightly focused your spot size can be. This can be beneficial for extremely small features, whether in data storage, where the blue or violet beam (Blu-Ray) enables a much higher data density than older technologies (CDs) utilizing a red beam, or for imaging applications or for surface roughness measurements, for example, where the shorter wavelengths enable higher resolutions. Shorter wavelengths also provide stronger absorption in materials. For example, many metals are highly reflective to infrared (IR) wavelengths, while it’s been shown that shorter wavelengths (i.e., blue lasers) are efficiently absorbed into materials such as copper. More on this below.
Sometimes you will see the terms blue lasers and violet lasers used interchangeably. For example, 405 nm lasers are often listed as a blue wavelength, while RPMC defines this wavelength as belonging to the violet color regime. Depending on where you look, you can find slightly different definitions or parameters for what specific wavelength range denotes blue wavelengths and which denote violet, especially right around where these two spectral regions come together. All that really matters is that you choose the proper specific wavelength to match your application requirements.
Blue Diode Lasers (blue semiconductor lasers), which are typically fabricated out of aluminum gallium nitride (AlGaN) or aluminum indium gallium nitride (AlInGaN), are one of the newest laser diodes available on the market today, having been first demonstrated in the mid-1990s. Over the past 20 years, blue diode lasers have found uses in a wide variety of applications, most ranging from RGB laser displays to aesthetic lasers for acne treatment. Blue laser light is efficiently absorbed by most metals. Considering this, blue wavelength lasers can be an extremely versatile tool, able to process most materials. High power blue laser diodes provide void-free, spatter-free welds on copper, non-ferrous metals, and dissimilar metals.
In addition to blue diode lasers, diode-pumped solid-state (DPSS) lasers are also available offering extremely long coherence lengths for applications such as Interferometry, Holography, and LIBS. DPSS lasers can produce blue laser light through harmonic generation (3rd harmonic / frequency-tripling) of neodymium-doped yttrium lithium fluoride (Nd:YLF) gain media, for example.
We offer many different laser types with Blue output, including Single Emitter and Multi-Emitter Laser Diodes, Laser Diode Modules, Line Modules, Pulsed DPSS Lasers, Microchip Lasers, Tunable DPSS Lasers and Turnkey Systems. Our Blue products are available with up to 3.5 W average power, options for single-mode or multimode, free-space or fiber-coupled output, and various packaging options and integration levels from component to OEM to turnkey systems. We have a number of different blue wavelengths from 415 to 495 nm including non-traditional blue wavelengths like 420, 425, 430, 435, 440, 445, 450, and 460 nm, ideal for various life science applications. If you are looking for 405 nm lasers, you can find them here on our Violet Lasers page.
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.
The LaserBoxx low noise Series is a CW diode laser module in a variety of diode wavelengths from 375 to 785nm, with output powers up to 350mW. 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.
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.
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.
The Q-TUNE series is a high energy, compact, tunable wavelength laser consisting of an Optical Parametric Oscillator (OPO) capable of producing a tunable wavelength range of 410-2300 nm with a linewidth narrower than 6 cm-1. Optional second harmonic generator extends the tuning range to 210-410 nm.
The combination of a pulse duration shorter than 5ns and an upper repetition rate of 100Hz, makes the Q-TUNE a perfect coherent light source for temporally resolved spectroscopy, metrology, photo-acoustic imaging and remote sensing applications.
The Quantas-Q-SHIFT series is a family of Q-switched DPSS lasers featuring a built‑in nonlinear wavelength conversion stage, allowing the production of wavelengths that are not accessible with conventional solid-state laser sources, including 1163, 1177, 1300, 1317, 1551 and 1571nm. An optional harmonics generator is also available for for the Q-SHIFT, allowing generation of up to the 4th harmonic for each fundamental wavelength.
The RPK 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.
The RHAML series of diode laser modules deliver a uniform, stable output beam that crucual for machine vision applcations, especially in 3D vision systems. The compact, RHAML series is a reliable light source that incoroporates a fucusing lens that can be easily adjusted by the user. Additionally, the RHAML series is fully IP67 compliant, making it an ideal solution for use in harsh environmental conditions and production/industrial facilities.
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.
The RBDL 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.
The RWLD series of laser diodes are available in a wide range of wavelengths, power levels, and packages. The RWLD wavelength options span from 405nm to 1650nm, with output powers in the range of 10 mW to 300 mW, packaged in a TO-18 package with photodiode. Custom wavelengths, powers, and packages upon request.
The RWLP 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 RWLP series is suitable for a variety of applications such as biological and analytical instrumentation.
The Microchip Series, from BrightMicroLaser, are ultra-compact, passively q-switched, single longitudinal mode (SLM), narrow linewidth, DPSS lasers that feature pulse durations from 400 ps to 2 ns, energy levels up to 80 uJ and repetition rates up to 100 kHz. In addition to the fundamental 1064 nm wavelength and its harmonics (532, 355 and 266 nm), we also deliver units emitting at 946 and 473 nm.
The TG Series of gallium nitride (GaN) semiconductor laser diodes emit in the blue spectral range, offering non-standard wavelengths from 420nm up to 460 nm with a typical output power of 50mW and an absolute maximum output power of 100mW. Assembled in a 5.6 mm (TO-56) packages the TG series is a suitable for a wide range of OEM applications that require blue/violet light.
The RWLS series of RGB White Laser Diodes are available in a wide range of power levels, with three base wavelengths: 635 nm (Red), 520nm (Green), and 445nm (Blue). Typically packaged in an HHL, pigtailed configuration, there are also plenty of customization options including wavelength, power and packaging.
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