RPMC is excited to announce our most recent white paper titled “Single Frequency Fiber Lasers for Doppler Lidar.” Doppler lidar takes advantage of the fact that when light interacts with moving object, it experiences a frequency shift. This frequency shift allows you to measure the veloci… Read More
Mass spectrometry is an extremely powerful analytical tool for chemical analysis, which is widely utilized in applications ranging from forensics to pharmaceuticals, because of its ability to detect the atomic constituents of an analyte but also determine their relative concentrations. This process is facilitated by ionizing the sample and then passing it through both an electric and a magnetic field causing them to spread out based upon their at… Read More
According to Grand View Research, laser hair removal is one of the most popular medical laser applications worldwide and is projected to reach 2.8 billion dollars annually by 2028. Laser hair removal became popular so quickly that by 2005 Alexandrite (the laser of choice at the time) was the second most popular laser crystal grown worldwide, even though there were no other mainstream applications for Alexandrite laser technology. As of 2020, laser diodes held the lion’s share of the market (over 39%), due to their high precision, efficiency, small footprint, and relatively… Read More
Jenoptik will be presenting its latest development in the field of high-power laser sources for industrial material processing, and in particular for direct diode laser applications. The new diode laser with passive cooling makes quite the impression with its extremely high power output of 275 watts and long service life in both CW and hard pulse app… Read More
Bright Solutions’ sub-ns DPSS lasers are field proven subsystems for portable lidar sensors. Many successful installations worldwide have confirmed the reliability of these laser sources in land vehicles, as well as airplanes and helicopters. Maintaining the concept of a ruggedized all-in-one IP 67 package, Bright Solutions has now developed several higher power versions, featuring over 100W of average power at 1064 nm, with pulse durations in the range of 300 to 900 ps, and a repetition rate up to … Read More
After several years of in-house testing and intensive testing in the field for some pilot programs, Bright Solutions is happy to announce their new UV versions of the Wedge Lasers, the industrial sub-ns DPSS laser solution. The Wedge HF and XF offer a pulse width less than 450ps, peak power up to 80 kW, are configurable in several frequency ranges from Single Shot to 200 kHz, and include the low jitt… Read More
Photodynamic therapy (PDT) is a common term in the medical community which has been used to describe treatments ranging from near-infrared laser-induced vascular dilatation to photo-thermal excitation of nanorods embedded in cancer tumors. For the purposes of this blog, we are going to focus on a rapidly growing subset of PDT where laser light is used to activate both dermal and subdermal treatments utilizing a specialized drug, called a photosensitiz… Read More
Bright Microlaser’s activity is focused on continuous development, pursuing higher reliability, simplified usability, maintenance and service for its devices. This opens up more and more opportunities in new markets and emerging applications, making Bright Microlaser a leading man… Read More
Laser-based techniques have been gaining more and more popularity in the medical and biomedical fields. In previous posts, we have discussed a wide variety of such applications ranging from Laser Diode Crown Troughing in Dentistry to Laser-Induced Breakdown Spectroscopy (LIBS) in Biomedical Applications, and in this blog post, we are going to take a look at another up and coming technique called Photoacoustic … Read More
Semiconductor materials are unique among laser gain materials for their extremely high index of refraction. As a result of this large index difference at the air/semiconductor interface, each facet of a laser diode naturally acts as a partially reflective mirror (~32%). This gives diode lasers the unique property of having a built-in resonator which is capable of lasing without any external optics or coatings and providing an extremely low-cost solution for applications such as laser pointers, where performance isn’t the primar… Read More
In this blog post we are going to take a look at two most commonly used fiber laser dopants erbium (Er) and ytterbium (Yb) which both have a strong absorption peak at 976 nm, but who’s bandwidths vary dramatically causing one to require a wavelength stabilized d… Read More
Optical technologies are widely used in anti-counterfeiting. One of the newer methods combines laser marking & micromachining to embed microscopic 2D barcodes directly onto the item. This blog post explores the types of lasers used, & the system level requirements for high-resolution 2D… Read More
In addition to our knowledge center which hosts our blogs, application notes, and white papers we have just added a brand new application section. This applications page organizes over 50 popular laser applications into easy to search categories ranging from laser welding to h… Read More
The Royal Swedish Academy of Sciences announced this year’s Noble prize in physics was being awarded “for groundbreaking inventions in the field of laser physics.” The award is to be split between optical tweezers and chirped pulse amplification (enabling attosecond pulse ge… Read More
In this blog we look at the application of machine vision in the transportation industry for laser rail inspection where high-power laser diodes. Laser rail inspection systems use high-speed cameras & high power laser line projectors to acquire high-res images and 3D profiles of rai… Read More
During any manufacturing process, there is some statistical variation in the finished product. Resistor manufacturing is no different, and for many years traditional bulk and chip resistors have been tested and sorted into bins and labeled based upon these tolerances. Board mount chip resistors are also similarly tolerance using a numerical code instead of a color code, but the end result is the same. However, this is not feasible in larger format thick-film or thin-film intergraded circuits which require initial calibration, such as operational amplifiers, voltage dividers, and oscillators, where the resistors are one small detail in a much more complex arc… Read More
In our last blog post, “Laser Amplification for Power Scaling,” we discussed how an optical amplifier can be used to increase the power of a seed laser while maintaining its performance characteristics. The same basic principle can be applied to a laser itself, with a method known as injection seeding. In this case, a single frequency laser is sent into the laser cavity therefore selectively reducing the gain threshold at that specific frequency as shown in the fig… Read More
Modern lasers come in a seemingly endless variety ranging from diode lasers as small as a grain of rice to CO2 lasers the size of a refrigerator. The one thing that all of these lasers have in common is that they contain the three basic components of a laser: gain medium, resonator, and excitation source. If any of these three components are missing, achieving threshold and starting the lasing process would be impossible. In this blog post, we will examine what happens when the resonator is removed from this equation, resulting in an optical amplifi… Read More
Continuing with our recent theme of application for laser diode bars and stacks, in this post we will take a look at laser cladding. If you haven’t already read our previous post titled “Understanding Laser Diode Arrays,” or have a basic understanding of laser diode bars and stacks we’d highly recommend you check out that post before reading … Read More
In this post, we will take a looking to industrial laser welding and why high power (multi-kilowatt) fiber coupled diode lasers are ideal for this application. This is accomplished by looking at the differences industrial laser cutting and laser welding system req… Read More
By combining TOF lidar at 1.5 micros with an InGaAs camera, you can produce a hypercube or “point cloud” containing a three-dimensional image of the target. This technique known as active night vision laser imaging, is discussed in this post, as well as which laser is best for this ap… Read More
At RPMC we offer one of the widest ranges of laser diodes on the market, and if you have been following us for some time now, we often mention that we offer both single emitters and arrays (bars). In this blog post we are going to take a look at exactly what we mean when we talk about diode bars, but in order to do that, we need to first take a small detour and talk about the role of the ridge waveguide in laser diodes i… Read More
Passively q-switched microchip lasers from Bright Microlaser, are the ideal solution for time-of-flight (TOF) lidar systems, because they offer pulse widths as short as 400ps while still maintain a single longitudinal mode and TEM00 output in wavelengths from 1064 nm to as low … Read More
Eblana Photonics’ propitiatory Discrete Mode (DM) single frequency laser diode technology is an ideal solution for this application, available from 760 nm up to 2150 nm. Their DM laser technology delivers DFB laser like performance at a lower price point geared to high volume app… Read More
Pulsed lasers refer to any laser not classified as a continuous wave. The optical power appears in pulses of some duration and at some repetition rate. Pulsed lasers have a gain medium that is typically optically pumped using either a flashlamp or by laser dio… Read More
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