Newsletter | June 20, 2022

06.20.22 -- AOM Or EOM? The Best Way To Modulate A Laser Beam

 
Spotlight On Lasers & Sources
What’s The Best Way To Modulate My Laser Beam – AOM Or EOM?
 

Choosing the right laser beam, in terms of performance, cost, and reliability, can be daunting. G&H discusses basic operating principles of the two most common modulator technologies, providing guidance on how to understand product specifications and learn to identify the products that suit your needs.

LIDAR – Lasers Rule For Remote Distance Measurement
 

Autonomous vehicles, military ranging, atmospheric sensing, and traffic monitoring are just some of the applications for this versatile technique.

Asphere Lenses: Let's Put The Pieces Together
 

Ignoring materials, intended usage, manufacturability, or measurability often leads to an asphere lens that's too expensive to produce and too difficult to measure. The pieces need to fit together to ensure maximized performance and cost effectiveness.

Will Transparent Solar Cells Soon Be Available?
 

Laser technology plays a decisive role in implementation of solar energy. Will we soon be able to turn our houses into small solar power plants without having to cover them with “ugly” mirror surfaces?

High-Pulse Laser Rotary Encoders: Positional Angle Mastery In A Tiny Package
 

The use of high-pulse optical-digital laser rotary encoders benefits applications where sensing or controlling the rotation and position of a mechanical system with high accuracy and exceptional resolution is required.

Common Laser Wavelengths And Their Uses
 

Gentec EO explores the many uses of laser wavelengths in this application note. Topics explored include common laser wavelengths in telecommunications, which wavelengths are needed and used for laser eye surgery, and how wavelengths are applied in laser welding applications. 

Industry Insights
High Sensitivity APD Optical Receiver

The Model 7511A is a high gain, low noise optical receiver employing an avalanche photodiode (APD) with a nominal bandwidth of 35 MHz and high dynamic range capable of driving a 50 Ω load with fast saturation recovery. This note discusses the performance, considerations, function, and physical constraints of each pin.

OEM Laser Optical Components: Customized Solutions

Ophir has earned its reputation as a world-leading, one-stop-shop designer and manufacturer of laser optic components for industrial applications. Ophir Laser Optics combines decades of expertise with the latest, cutting edge technologies for a diverse range of advanced optical components and assemblies.

Ultrafast Dispersion

While the effect of dispersion is minimal for many types of laser systems, it is especially problematic in ultrafast laser applications. Ultrafast lasers are characterized by short pulse durations on the order of picoseconds, femtoseconds, or attoseconds.

Recent News
Featured Multimedia
Video: High Performance Motion Technologies
 

A combination of precision motion technologies, such as nanopositioning, high performance automation controllers, air bearings and piezoelectric motors provides the tools for the next generation semiconductor test and manufacturing systems..

Bulletin Board
Video: Telops Introduces Infrared Products At DCS 2022
 

On the final day of SPIE’s 2022 Defense + Commercial Sensing trade show, Photonics Online met with Telops as they introduced their new portable hyper cam spectrometer to be used in smaller, hard to reach areas. Telops also exhibited a new SWIR camera and HD imaging options.

Featured Solutions
High Speed InGaAs PIN Photodiodes

The FD80 Series from Fermionics Opto-Technology are high-speed, low-dark-current, low-capacitance photodiodes. The innovative InGaAs product line is designed specifically for use in extremely tight spaces, such as high-speed communication systems.

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Fermionics Opto-Technology
Laser Power Sensor: F150(200)A-CM-16

The F150(200)A-CM-16 is a thermal power/energy laser measurement sensor with a high damage threshold for high repetition rate pulsed lasers. It has a 16mm aperture and can measure power from 300mW to 150W continuously and to 200W intermittently. 

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Ophir Photonics
Near-Infrared Detectors

Opto Diode's new series of near-infrared (NIR) detectors are designed for back-facet laser monitoring applications that require improved performance in the NIR spectrum from 700 nm to 1100 nm. These new photodiodes maximize measurement repeatability and offer a low-cost solution for NIR wavebands.

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Opto Diode, An ITW Company
Beamsplitters for High Power Laser Applications

PG&O’s latest beamsplitters features a 200:1 extinction ratio, thus maximizing the split between S&P polarization. This can be a critical factor in many different high-power level tasks, particularly for optics applications up to 10J/cm2 pulsed and continuous wave.

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PG&O® Precision Glass & Optics