Dispersion Compensation Chirped Mirrors
Dispersion compensation for ultrafast lasers is to introducing a negative GDD that cancels out the positive GDD that results from chromatic dispersion. Dispersion compensation is critical for femtosecond ultrafast lasers to preserve the temporal profile and peak power of laser pulses. Chirped mirrors are a special dispersive Bragg mirror coated with alternating dielectric thin films of high and low refractive indices, and the thickness of the thin films becomes thinner towards the surface to provide larger group delay dispersion for longer wavelengths.
Understanding Laser Optics 1: The Physics of Lasers
In today’s article from Shalom EO, as the first lesson from the series of understanding laser optics topic, we will begin with the very fundamental physics of lasers, how a laser cavity works.
Learning About The Physics of Ultrafast Lasers
This article gives a comprehensive introduction to the physics behind ultrafast lasers, including the definition of ultrafast lasers, their characteristics (spectral bandwidth and peak power), and the techniques (mode-locking and chirped pulse amplification) used to produce ultrafast lasers.
The Developments and Applications of Ultrafast Lasers
This article states the development of ultrafast lasers, the evolution from dye lasers to Ti:Sapphire solid state lasers, and the realization of PW peak power using chirped pulse amplification technologies; the article also introduces the applications of ultrafast lasers in microprocessing, spectroscopy, 3D nano printing, etc.
Instant Guide-Important Specifications for Ultrafast Optics
Ultrafast lasers, also interchangeably called ultrashort lasers, are defined as pulsed lasers with a pulse width of picoseconds or less than 1 picosecond (1 ps = 1 × 10^-12 s). They have been applied and are showing promise in areas such as laser drilling/cutting and micromachining. In this blog, we break down the five critical parameters you should evaluate before purchasing ultrafast optics, such as mirrors, lenses, windows, or dispersion compensation elements. We give you guidance on the following specifications: 1. The Wavelength Range, 2.Dispersion, 3. Dispersion Compensation, 4. Average Power, Fluence, Peak Power, 5. Laser Induced Damage Threshold, 6.Angle of Incidence, 7. Polarization, 8. Surface Specification.
Composite Laser Crystal Tutorial
A comprehensive tutorial on composite laser crystals — covering structure, diffusion bonding principles, optical properties, and laser applications.
Nd:YAG Crystal Properties & Core Applications
Explore the Nd:YAG crystal—the premier solid-state laser medium. Learn its exceptional thermal/mechanical properties, 808 nm absorption, 1064 nm laser output, and critical uses in medical, industrial, and scientific fields.
Technical Introduction of Cr:YAG
In-depth technical overview of Cr:YAG (Chromium-doped Yttrium Aluminum Garnet) crystals, focusing on their saturable absorption mechanism, manufacturing process by Czochralski growth, and applications as passive Q-switch elements in pulsed laser systems, laser marking, and rangefinding technologies.
Technical Overview of Nd:YVO₄ Crystal
Comprehensive technical explanation of Nd:YVO₄ (Neodymium-doped Yttrium Vanadate) crystals, covering optical and physical properties, emission mechanism at 1064 nm, growth and processing techniques, and their use in diode-pumped solid-state lasers, frequency conversion, and advanced photonics applications.
Technical Overview of Alexandrite Crystal Rods
Technical explanation of Alexandrite (Cr:BeAl₂O₄) crystal rods, covering material composition, optical and physical properties, 755 nm laser emission mechanism, Czochralski crystal growth, precision machining processes, and applications in medical laser systems such as hair removal and pigmentation treatment.