Source: Nature Understanding Photoconductive Sampling in Photonics Overview Photoconductive sampling is a valuable technique in optical sampling that utilizes photoconductive switches. These switches are activated by ultrashort laser pulses, enabling the temporary closure of an electrical connection. In this method, a second photoconductive switch, triggered by a delayed laser pulse, samples the signal at a […]
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Source: ACST GmbH Optical Frequency Multipliers Understanding Optical Frequency Multipliers Introduction Optical frequency multipliers are devices that can convert light to other light with the frequency being an integer multiple of the original frequency. These devices, also known as optical harmonic generators, rely on optical nonlinearities to achieve this conversion. Types of Frequency Multipliers There
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Source: TECHNOLAB SA Understanding Pulse Generation Techniques Understanding Pulse Generation Techniques Continuous Light Source and Fast Modulator Short or ultrashort light pulses can be generated using a continuous light source and a fast modulator. However, this method is not very efficient as most of the light is lost at the modulator, and the pulse duration
Source: Holmarc Understanding Fiber Optic Collimators Understanding Fiber Optic Collimators Fiber optic collimators are essential tools in the realm of photonics, providing a means to transform light output from an optical fiber into a collimated free-space beam. These devices are integral in various applications, from telecommunications to laser systems, where precise light control is crucial.
Source: Forschungsverbund Berlin e.V. – News Exploring Ultraviolet Optics Innovations Hollow-Core Photonic Crystal Fiber Technology Hollow-core photonic crystal fibers guide light within a hollow channel enveloped by a microstructured cladding. This innovative technology offers precision and efficiency in photonics applications ranging from 213 nm to mid-infrared. Dielectric Mirrors and Multilayer Mirrors UltraFast Innovations (UFI®) provides
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Source: Nature Understanding Channel Waveguides Understanding Channel Waveguides Channel waveguides, also known as strip waveguides, are essential components in the field of photonics. They are designed as channels that run along the surface of a solid transparent medium, such as a dielectric or semiconductor. Unlike planar waveguides, channel waveguides can guide light in two dimensions,
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Source: CASTECH Inc. Understanding Acousto-Optic Tunable Filters Operation Principle An acousto-optic tunable filter (AOTF) is an optical filter controlled by radio frequency (RF) signals. When a sinusoidal RF signal is applied, diffraction occurs only within a specific range of optical frequencies, creating a bandpass filter. By varying the RF frequency, different optical frequencies can be
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Source: YouTube Understanding Field Stops in Imaging Systems Understanding Field Stops in Imaging Systems What are Field Stops? In the field of imaging systems, the field of view is limited by an optical aperture known as the field stop. This aperture restricts the angular range within which objects can be effectively imaged. Types of Field
Source: TopGaN Lasers Semiconductor Optical Amplifiers (SOAs) A semiconductor optical amplifier (SOA) is an optical amplifier that utilizes a semiconductor gain medium. It operates similarly to a fiber-coupled laser diode but with anti-reflection coatings instead of end mirrors. The amplification process in an SOA involves sending signal light through a semiconductor single-mode waveguide that is
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Source: Ingeneric Microlens Arrays: A Comprehensive Overview Introduction to Microlens Arrays Microlens arrays are arrays of small lenses known as lenslets, arranged in either one or two dimensions. These lenslets typically form a periodic pattern of square or hexagonal shapes, with a pitch size ranging from a few micrometers to hundreds of micrometers. Key Features
