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Author: Stephen Gwinner Publish Date: 07/06/24 QUICK SEARCH TABLE OF CONTENTS What is an Acousto Optic Modulator? An acousto optic modulator, also known as a Bragg cell or an AOM, is an electro-optical device that uses sound waves to manipulate the properties of…
LASER DIODE CONTROLLER BASICS A laser diode controller consists of a constant current source combined with a TEC (thermoelectric) temperature controller. They provide stable current to a semiconductor laser and they control the laser diode’s temperature. They provide both functions.…
TEC CONTROLLER BASICS INTRODUCTION: TEC controllers and related thermoelectric temperature control products are used widely in laser diode and photo-detector cooling and heating applications. They are also being widely used in emerging applications in the aerospace and automotive industries, consumer…
HOW TO CHOOSE A PULSED LASER DIODE DRIVER QUICK NAVIGATION: INTRODUCTION: Choosing a pulsed laser diode driver for your application can easily turn into a multi-day project. The design and manufacturing of fast pulsing current sources specifically for semiconductor lasers…
LASER DIODE DRIVER BASICS AND DESIGN FUNDAMENTALS Introduction: If you are about to begin working with laser diodes, you are most likely aware that there are some very specific nuances to safely driving them and controlling their temperature. They require…
Learn how wavelength, power, package & cavity type determine the cost of a laser diode Introduction: Semiconductor laser diodes range widely in price based on a few key parameters. The wavelength, power, spectral qualities, package type, cavity type and quantity…
Current and Temperature Tuning of Laser Diodes This article will help you understand the underlying principals used to derive current and/or temperature tuning coefficients. Updated: January 15, 2021 Author: Stephen Gwinner, Laser Lab Source INTRODUCTION: One of the advantages of…
FLUORESCENCE SPECTROMETERS Fluorescence Spectrometers, UV/Vis NIR Fluorescence Spectrometers What is Fluorescence Spectroscopy? Is a spectroscopic technique that uses light to excite an electron in the sample. The excited electron emits light that is than measured using a spectrometer. Typically this is…
Introduction: Our understanding of the universe comes from an expanded understanding of light as a wave across a much wider spectrum than what we can see. This understanding has led to a host of modern technologies utilizing light’s wave properties…
Learn the fundamentals of piezo nanopositioners and learn how to select the best piezo stage for your application. QUICK NAVIGATION: A new world in positioning and alignment to the nanometer level has been enabled by piezo actuators providing nano-level motion…