Photonics

Laser-Induced Damage to Large Core Optical Fiber by High Peak Power Laser

In this paper we present a study of laser damage to large core multimode glass optical fibers by high peak laser power of up to 175 kW. Fibers samples prepared with polymer coatings having different refractive indices were tested in a two point bend tester while transmitting laser light. The peak power used in the experiment clearly differentiated the performance among the samples. A polymer coating having lower refractive index significantly improves the fiber resistance to bending while transmitting laser. This observation provides important insight into the damage mechanism for this particular failure mode.

Posted in: Photonics, White Papers

Read More >>

Designing Ring Projections for Hermetic Sealing

Product Engineer at Miyachi Unitek, Mark Sunico offers suggestions for developing ideal ring projection designs for hermetic sealing. The whitepaper covers the whole process; from basic concepts to choosing the right weld head controller, head, power supply, and schedule -- all to ensure a reliable final product.

Posted in: Photonics, White Papers

Read More >>

It Takes Two: Benefits of Using Laser Beam Welding Together with Electron Beam Welding

Laser beam welding (LBW) and electron beam (EBW) welding each have unique benefits. However, many component designs incorporate both EB and laser welds. In this paper, Joining Technologies outlines how performing both types of welding at the same facility can streamline the manufacturing process and select the right joining process.

Posted in: Photonics, White Papers

Read More >>

Fiber Optic Rotary Joints Add a Spin to Sensing, Mobile, and Robotic Fiber Systems

To the passing optical signals, fiberoptic rotary joints (FORJs) are nothing more than fiber connectors, which provide connection between one or multiple fibers. Their unrestricted ability to rotate, however, gives them a critical role in many sensing, mobile, and robotic fiber systems such as ROVs (remotely operated vehicles), aerostat radars, submarines, satellite antennae, OCT (optical coherence tomography), mining vehicles, cranes, wind turbines, robotic vehicles, broadcasting (mobile cameras), etc. This article discusses some of the applications where optical rotary joints are indispensable. www.princetel.com

Posted in: Photonics, White Papers

Read More >>

White Papers

Selection of Materials for Medical Applications
Sponsored by RTP
“Surfin’ on the Highway”
Sponsored by TDK
Next-Generation, Miniature High Voltage Power Modules
Sponsored by EMCO High Voltage
Spherical Plain Bearing
Sponsored by AST Bearings
An Alternative to Check Fixtures
Sponsored by Faro
Introduction to Hypervisor Technology
Sponsored by Curtiss-Wright Controls Embedded Computing

White Papers Sponsored By: