Source: MDPI Understanding Mode Hopping in Lasers What is Mode Hopping? Mode hopping is a phenomenon commonly observed in single-frequency lasers where the laser can suddenly switch from operating on one resonator mode to another. This results in a quick redistribution of optical power between different modes. Causes of Mode Hops External influences such as […]
Source: Edmund Optics Ultrafast Lasers in Scientific Research and Industrial Applications Ultrafast lasers play a crucial role in various scientific research fields and industrial applications due to their ability to generate extremely short pulses of light. These lasers have revolutionized fields such as spectroscopy, microscopy, material processing, and more. Let’s explore some of the prominent
Source: Lasershop.de Laser Diode Drivers: Functionality and Applications Laser Diode Drivers: Functionality and Applications Basic Functionality Laser diode drivers are electronic devices used to supply laser diodes with the required electrical drive current. They ensure stable operation by providing a constant current to the diode, which is crucial for maintaining a consistent optical output power.
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Source: YouTube Case Study: Ytterbium-doped 975-nm Fiber Lasers Special Spectroscopic Situation Ytterbium-doped lasers emitting at 975 nm have a unique spectroscopic situation. The emission cross-section of ytterbium is maximized at this wavelength, but there is also significant reabsorption, requiring the Yb excitation density to be over 50% for positive gain. Difficulty of Achieving Lasing at
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Source: Advanced Energy Applications of Lasers in Medicine Introduction Lasers have a wide range of applications in the field of medicine, including both therapeutic and diagnostic uses. They are used in various medical specialties such as ophthalmology, dermatology, dentistry, urology, and general surgery. This article provides an overview of some common applications of lasers in
Source: Lesli Fireworks Understanding Peak Power in Photonics Understanding Peak Power in Photonics What is Peak Power? Peak power refers to the maximum optical power reached by a light pulse. In photonics, due to the short durations of optical pulses, peak powers can be extremely high even with moderate pulse energies. Examples of Peak Power
Source: Walter Schottky Institut – Technische Universität München Understanding Semiconductor Lasers Semiconductor Lasers: A Comprehensive Overview Types of Semiconductor Lasers Semiconductor lasers can be categorized into two main classes: 1. Edge-Emitting Lasers Edge-emitting lasers, also known as in-plane lasers, emit light along the wafer surface of the semiconductor chip. The light is usually reflected or
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Source: LightTrans Understanding VCSEL Arrays: A Comprehensive Guide Introduction to VCSEL Arrays Vertical Cavity Surface-Emitting Lasers (VCSELs) are a type of laser diode that emits light perpendicular to the wafer surface. Unlike traditional edge-emitting semiconductor lasers, VCSELs can be fabricated in two-dimensional arrays on a semiconductor chip, allowing for higher combined output powers. These arrays
Source: Decibel Pro Understanding Decibels in Photonics The Significance of Decibels in Photonics Understanding Decibels The decibel (dB) is a unit used to measure the gain of an amplifier or the loss of an optical component like a fiber or attenuator. It is a logarithmic unit where the number of decibels is 10 times the
Source: Spectroscopy Online Laser Requirements for Raman Spectroscopy Introduction to Raman Spectroscopy Raman spectroscopy is a technique used for chemical analysis and material characterization. It involves irradiating a sample with a laser beam and analyzing the scattered light. The optical spectrum of the scattered light contains information about the molecular vibrations of the material. Requirements
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