Technical Articles

Technical Articles

Measuring the Efficiency of Diffraction Gratings

While simple in principle, measuring the efficiency of diffraction gratings is a complex process requiring precise methods to achieve acceptable results. Every optical, mechanical, …

Technical Articles

Diffraction Gratings - The Crucial Dispersive Component

A grating disperses light incident on it. Dispersion is the phenomenon by which a spectrum of light is separated in space by wavelength. Prisms also disperse light by wavelength and …

Technical Articles

Is Vibration Control Really Necessary for Microscopy? - BioPhotonics

Identifying and quantifying the potential noise sources in your lab are the first steps toward understanding what vibration control solutions may be required to achieve acceptable …

Technical Articles

Large Gimbal Mounts for Focal Plane Testing - Motion Control Tech Briefs

A motorized gimbal mount has been developed to scan and position large, heavy optics with high angular resolution

Technical Articles

Laser Diode Controllers: Tighter Control, More Integration and Higher Current - Photonics Spectra

The demand for high-precision laser diode components has skyrocketed with the rapid growth of optical networks using dense wavelength division multiplexing technology that requires …

Technical Articles

Lasers May Brighten the Solar Cell Market - Photonics Spectra

The solar industry looks set for explosive growth as it takes advantage of innovations enabled by lasers and new manufacturing technologies.

Technical Articles

Meeting Measurement Challenges For Low-Power, Pulsed, or Modulated Light Sources - Photonics Online

It is particularly challenging to measure a low-average-power pulsed light source, such as an LED or a low-power laser diode, especially when the electrical designers do not know the …

Technical Articles

Optical Mounts: Ignore Them at Your Peril - Photonics Spectra

Optomechanical mounts may seem like insignificant design elements, but they can make or break a photonic application.

Technical Articles

Vibration Isolation in Optical Test Systems - Photonics Tech Briefs

A common source of instability within a light beam path is vibration. Vibration control systems that include, typically, vibration isolators and optical tables, are intended to minimize …

Technical Articles

How To Minimize Measurement Errors In Solar Cell Testing - Solar Industry

Research using properly measured solar reference cells can be transferred to new technologies for full-scale modules.

Technical Articles

Software Supports Multiple Optical Fiber Alignment Options

To address alignment needs ranging from large-diameter single-core optical fibers to high-resolution diffraction gratings, motion-control software must be configurable for multiaxis …

Technical Articles

Effective Vibration Reduction Stabilizes Laser Beams - Laser Focus World

Optical tables and vibration isolation supports have become the de-facto standard for providing a stable environment for complex laser systems and their applications.

Technical Articles

Cost-Effective Freeforms - The Advent of Optics Without Boundries

What exactly is a freeform, and what makes it so useful? A freeform is a surface that lacks rotational and translational symmetry. This puts them in sharp contrast to most traditional …

Technical Articles

Keeping Optical Tables Steady - Photonics Spectra

Experimental results from a scanning laser doppler vibrometer eludicate the effects of active vibration damping.

Technical Articles

Automated Alignment Keeps Z Machine on Target - Laser Focus World

Computer-controlled motorized mirror mounts enable rapid realignment of beam-steering optics between discharges at Sandia National Labs’ Z machine.

Technical Articles

Automated Tests Improve Laser Diode Manufacturing - Laser Focus World

Tougher laser diode requirements for WDM systems have led to a new generation of automated production test equipment.

Technical Articles

Calibrating Photovoltaic Cells - Photonics Test Briefs

The basic function of a photovoltaic cell is to convert input sunlight energy expressed in irradiance into output usable electric energy.

Technical Articles

CMOS Cameras Allow Robust Active Stabilization of Laser Beams - Laser Focus World

Accurate measurement of the position of a laser beam can be achieved in several ways, each with its strengths and weaknesses. A comparison of these has resulted in an active beam-stabilization …

Technical Articles

Demand for High-Speed Detectors Drives Research - Laser Focus World

Resonant-cavity enhanced detectors improve detection and wavelength selectivity, high-power traveling-wave detectors increase dynamic range of analog fiber links.

Technical Articles

How to Determine Your Equipment Needs

Vibration site surveys can tell you a lot about how to specify equipment for vibration isolation in your laboratory.

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