Additive Manufacturing with High Intensity Blue Diode Laser

Novel Beam Diagnostics Improve Laser Additive Manufacturing

Laser additive manufacturing (LAM) is rapidly becoming an important method for the fabrication of both prototype and production metal parts. However, the technology is really just in its infancy, and significant work still needs to be done in the development of new materials and in understanding how various process parameters affect results. In particular, LAM methods typically have a relativel...

Laser Additive Manufacturing Process Planning and Automation

This paper presents a Laser Additive Manufacturing Process Planning (LAMPP) being developed at the University of Missouri-Rolla. The off-line planning recognizes difficult-to-build features from an STL file, selects optimal part orientation and building directions based on the skeleton information of the object geometry, and optimizes the sub-process sequences for deposition and machining. Duri...

Management of an Extensive Vascular Lesion on the Lip by Photocoagulation with High-Intensity Diode Laser

OBJECTIVE Extensive vascular malformations (VM) pose difficulties for an effective management. INTRODUCTION This article describes a very satisfactory result, both functional and aesthetic, following a management by the technique of photocoagulation using diode laser in an extensive VM lesion involving the lower lip and left buccal mucosa in a 25 year old male. CASE REPORT The patient repor...

Blue Laser Diode Enables Underwater Communication at 12.4 Gbps

To enable high-speed underwater wireless optical communication (UWOC) in tap-water and seawater environments over long distances, a 450-nm blue GaN laser diode (LD) directly modulated by pre-leveled 16-quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) data was employed to implement its maximal transmission capacity of up to 10 Gbps. The proposed UWOC in tap...

Reducing the Cost of Test in Laser Diode Manufacturing