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Optics, Sensors & Detectors White Papers
How to Design a Detector Noise Limited Instrument with PbSe Detectors
Pyrometers, NDIR gas analyzers, and flame monitoring systems, often make use of MWIR photoconductive PbSe detectors. Particularly, when high sensitivity and quick response time at an affordable cost are required. In order to achieve the optimal performance for a particular application, it is important to understand how these detectors operate. Not only the bias voltage plays a role, but also the optical chopping frequency. We have many experience in helping instrument designers develop the...
Key Considerations when Designing and Implementing an Outdoor-Ready Smart Imaging System
The key to a successful all-in-one imaging system is the use of embedded systems – especially when it comes to designing a custom proprietary system. This white paper walks you through key elements to consider when designing an embedded vision...
Working in the Basement: Measuring Signals Below the Noise Floor with a Lock-In Amplifier
Measuring optical signals in the femtowatt (10-15) to nanowatt (10-9) range can be a daunting task. Signal levels this low are lost in typical detector noise levels and swamped by background light. The noise floor for photodiode detectors operated...
A Brief Introduction to Customization
This five-part series is focused on optoelectronic customization, and how both emitter and detector components and assemblies can be specifically designed for customer applications, including in-depth analysis of materials, packaging, and testing....
High-Performance FDTD Simulations with Sub-Cell/Conformal Meshing in RSoft FullWAVE
Due to the computationally intensive nature of the FDTD simulation method, improved accuracy and convergence are critical for its practical use as a design algorithm in applications where numerous design variants need to be explored. This white...
Modern CMOS Sensors and Their Use in Fluorescence-Based Applications
Dr. Felix Asche, Product Manager at Basler, outlines possibilities and application areas of modern CMOS sensor technology in medicine and science. System manufacturers whose devices are equipped with CCD sensors and who are therefore increasingly...
Designing and Selecting an Optical Cleaning Process
Every optical application requires a "clean" optical surface. However, what defines "clean" is subjective and is based on the needs of the application. In addition, there is not a singular low-cost cleaning process that can meet all the demands of...
Selecting The Right Hyperspectral Imager Is Key To Bringing Critical Data Into View
Hyperspectral imaging is a valuable technique for revealing data the eye alone cannot capture. Revealing different characteristics from an image, hyperspectral imaging is highly prized for many applications, from gathering forensic evidence and...
Gas Purging Keeps UV Spectrophotometers Healthy
Measuring in the far-UV (FUV) 120-220 nm presents unique challenges. The high energy that makes UV light interesting can cause photochemical formation of organic films on optical surfaces. These films cause increasing, wavelength-dependent loss of...
Design Optimization of Grating Fiber Couplers with RSoft Products
Engineers can readily achieve optimal design of silicon photonics devices using rigorous simulation tools to numerically optimize a large number of design parameters. This paper demonstrates how a complex grating coupler design can be efficiently...
Improving Focusing Quality of Spherical Lenses
Employing aspherical lenses to reduce aberrations to improve focusing qualities is a well-known concept. But the potpourri of aspherical surfaces offers way more possibilities, even the chance for flexible beam shaping setups. Axicons are conical...
Various Beam Shaping Applications Utilizing Axicons
Employing aspherical lenses to reduce aberrations to improve focusing qualities is a well-known concept. But the potpourri of aspherical surfaces offers way more possibilities, even the chance for flexible beam shaping setups. Axicons are conical...
High Power, High LIDT Laser Optics - Understanding Optics for-High Power Lasers
Catalog optics are fine for many laser applications but high power lasers require specified damage optical characteristics. The whitepaper explores power resilience of laser optics, working with test laboratories, ISO testing, measuring LIDT, LIDT...
A New Spectral Analysis System Designed to Measure High-Performance Thin-Film Optical Filters
The HELIX Spectral Analysis System was designed to address the limitations of most commercially available spectrophotometers when measuring high-performance thin-film optical filters. The system’s capabilities are four-fold: it is able to track...
Using Newport 1936-R/2936-R Power Meters for Low-Power, Pulsed or Modulated Light Sources
Recent advancements in photonics technologies have broadened their applications into many different areas. An increasingly larger number of complex and diverse forms of light sources are designed into various systems and experimental setups. These...
Use Injection Molded Plastic Optics to Reduce System Cost
Plastic optics in complex optical systems offer many advantages over glass. Designers and manufacturers will gain competitive advantages by using well designed plastic optics in applications well suited for their use. This white paper will discuss...
SNR improvement in a Raman based distributed temperature sensing system using a stimulated Raman scattering filter
In Raman-based distributed temperature sensing (DTS) systems, the signal to noise ratio (SNR) is often low due to weak backscattered Raman signals. This can limit both sensing distance and temperature resolution. To overcome this power limitation,...
Autonomous automobiles don’t operate underwater, however…
Autonomous vehicles use an assortment of sensors and imagers including LiDAR (Light Detection and Ranging). Whether it’s scanning system, solid state, or flash these systems need to be calibrated for sensitivity over a dynamic range of light...
Get Optical Products to Market Faster Using Modern Virtual Prototyping
Companies developing cutting-edge lasers, optics, and imaging products face significant hurdles getting products to market ahead of competitors. Learn about a new way for optical and mechanical engineers to collaborate that’s changing the way...
Thin-Film Interference Filters for LIDAR
High-performance, ultra-narrowband interference filters with > 95% transmission, less than 0.1 nm bandwidths, steep edges, a square spectral shape, wide range blocking measured at > OD 8 (-80 dB), uniform coatings, and minimal thermal dependence...
Optical Components for SWIR Imaging
Precision Glass & Optics discusses the challenges of designing optical coatings for shortwave infrared (SWIR) imaging. Also discussed are the many advantages that SWIR imaging devices provide.
OptSim Circuit: A SPICE-Like Photonic Simulator for Scalable Photonic
The time for large-scale photonic integrated circuits (PICs) has arrived. Governments, academia and industry are all onboard to transfer knowledge gained from decades of manufacturing experience in electronic integrated circuits to photonic...
Fabrication of Freeforms
Freeform surfaces on optical components have become an important design tool for optical designers. Non-rotationally symmetric optical surfaces have made solving complex optical problems easier. Optimax has developed a robust freeform optical...
Lateral-Effect Photodiodes
As the number of applications requiring mechanical alignment increases, the demand for new types of position-sensing detectors, specifically Lateral-effect PSDs is on the rise. These position sensors feature state of the art lateral technology to...
When Smart Sensors Require Smart Sources
RGB sensors are calibrated to predict the indoor or outdoor ambient lighting conditions and are used to make appropriate corrections and trigger functions like auto adjusting display brightness. To do this effectively requires a smart calibration...
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May 2024
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