Technical Notes
Fiber Optic Coupling
The problem of coupling light into an optical fiber is really two separate problems. In one case, we have the problem of coupling into multimode fibers, where the ray optics of the ...
Technical Notes
Optics Formulas
Light is a transverse electromagnetic wave. The electric E and magnetic M fields are perpendicular to each other and to the propagation vector k, as shown below. Power density is given ...
Technical Notes
How to Clean Optics
Dust and stains on Optics can cause scattering, and impurities on the optic surface can react with incident laser light to damage optical coatings. With proper handling and cleaning ...
Technical Notes
Linear Translation Stage Terminology
This glossary covers important terms related to linear translation stages.
Technical Notes
Motion Basics Terminology & Standards
The function of a stage is to constrain motion to a desired direction. For a linear stage, the desired motion is along an ideal straight line. Any motion in a constrained direction ...
Technical Notes
Laser Damage Threshold
For continuous wave (CW) lasers the damage threshold can be calculated from the peak power and beam diameter. For example, to calculate the power density of a 50 mW Nd:YAG laser at ...
Technical Notes
High Speed Detectors
There are many common parameters one considers when selecting a detector for a particular application. These include pulsewidth, bandwidth, responsivity, spectral sensitivity, noise ...
Technical Notes
Stage Components Considerations
Choosing the right positioning technology for an application is a complex task. There are numerous choices of linear stages, rotation stages and actuators and each product has its own ...
Technical Notes
Optical Detector Definitions of Characteristics
This glossary covers important terms relating to our New Focus photodetectors and photoreceivers.
Technical Notes
Linear Translation Stage Technology Guide
Each material used in the design of a linear translation stage has its own unique set of advantages and disadvantages. The following is a summary of the properties for the most common ...
Technical Notes
Optical Mirror Mount Technology Guide
An Optical Mirror Mount is a device used in optics research that securely holds a mirror in place while allowing for precision tip and tilt adjustment. Due to the sensitive nature of ...
Technical Notes
Control Theory Terminology
Common motion systems use three types of control methods. They are position control, velocity control and torque control. The majority of Newport’s motion systems use position control. ...
Technical Notes
Building your Intelligent Picomotor™ Driver Network
The Intelligent Picomotor control modules include the Model 8742 Open loop controller/driver and the Model 8743-CL closed-loop controller/driver. The Model 8742 can control up to four ...
Technical Notes
Open vs. Closed Loop Picomotor Control
Designed specifically for single-mode fiber positioning, the 561/562 Series meets the most difficult challenges in component engineering. The core of a single-mode fiber can be as small ...
Technical Notes
Advantages of New Focus Mirror Mounts - Technical Note
When we design our mirror mounts, we strive to make mounts that provide precision adjustments that really stay put. To give you the ultimate in precision, one of our design criteria ...
Technical Notes
Picomotor Definitions of Characteristics
The smallest rotation you can make with the Picomotor™ actuator. This is the typical rotation caused by applying a single voltage pulse to the Picomotor actuator. Since the Picomotor ...
Technical Notes
Thermal Performance of Mirror Mounts
Whether you are a laboratory researcher or an optical-equipment manufacturer, you’ll be concerned with how temperature changes affect your optical system. A stable mount will lead to ...
Technical Notes
New Focus Tunable Lasers
The laser cavities in our external-cavity diode laser (ECDL) systems and laser modules are the result of many years of experience in designing and manufacturing tunable lasers. Their ...
Technical Notes
Stability of Optical Posts vs. Pedestals
The way you mount your optics can make the difference between a stable setup and one that suffers from vibrations. When building a setup, be sure to minimize beam height, use fewer ...
Technical Notes
Building a Swept-Wavelength System
A swept-wavelength system is similar to the traditional step-and-measure system in that you’ll need a tunable laser source, the device you want to test, some photoreceivers or power ...
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