Transforming the future

A pavilion on the exhibit floor of the recent SPIE conference in San Diego, CA showcased consumer-level applications of photonics technology as well as several projects bringing energy-efficient lighting and cooking capabilities to the developing world. Presented under the rubric of Photonics for a Better World, the pavilion included displays of cars and solar-powered flashlights, both using LED lighting technology. The growing adoption of solid-state lighting, which has now moved well beyond commercial settings and into the home, is creating significant manufacturing challenges for makers of light-emitting diodes with consequent opportunities for photonics-based solutions. Emission wavelength and power both affect LED production yields so a variety of techniques have been developed to address them, ranging from binning (sorting) to LED designs aimed at improving the light extraction efficiency. In both cases, optical metrology can help improve the yield and product quality of high-brightness LEDs (see page 35).

Away from the consumer–but with a significant impact on them–is the seemingly relentless quest for faster communications networks. Increased capacity is the goal of next-generation coherent communications systems while preserving optical reach and agility on the existing fiber plant, but the optimization of fiber designs for these systems is only just beginning (see page 47). And at the backplane level, parallel-optics transmitters based on arrays of vertical-cavity surface-emitting lasers (VCSELs) are used to accommodate the growing data rates. At these high rates, individual monitoring of every VCSEL in the array offers systems designers new capabilities (see page 58).

Researchers worldwide continue to explore the unique ability of ultrafast pulses to alter materials without collateral damage. In Europe femtosecond pulses are being used to create microsystems, like the tiny flowers shown on our cover, by transforming the internal structure of glass–potentially creating future opportunities for system integration at the microscale (see page 13).

Stephen G. Anderson
Associate Publisher
Editor in Chief
stevega@pennwell.com

 

More Laser Focus World Current Issue Articles
More Laser Focus World Archives Issue Articles

Most Popular Articles

Webcasts

Opportunities in the Mid-IR

The technology for exploiting the mid-IR is developing rapidly:  it includes quantum-cascade lasers and other sources, spectroscopic instruments of many...

Fiber Optic Sensors – Fundamentals, Principles and Applications

In this webcast, sponsored by Nufern, we focus on optical fiber sensing technology.  Fundamental concepts will be presented first, followed by the under...

Infinite Possibilities – Easily Combining Scanner and Servo Motion

High precision motion control applications such as laser micromachining, 2-photon polymerization, glass panel and film patterning, and additive manufacturing...

Solutions in Search of Problems: What Spectroscopy Can Do for You

Spectroscopy is so pervasive that most of us take it for granted. We use it for routine laboratory and test measurements without appreciating how those same ...

Technical Digests

HIGH-ENERGY LASER COATINGS: Eliminating laser damage proactively

High-power and high-energy thin-film antireflection coatings for laser optics require careful des...
Sponsored by

LIBS -- spectroscopy for remote identification of materials

Laser-induced-breakdown spectroscopy (LIBS) uses a pulsed laser to vaporize a small sample of a s...
Sponsored by

Laser Tools for Materials Processing

Laser materials processing requires not only the appropriate industrial laser system, but also a ...
Sponsored by

Click here to have your products listed in the Laser Focus World Buyers Guide.

RELATED PRODUCTS

P-series 1470nm to 1550 nm

Ultra-High Brightness Direct Diode Lasers 20W to 135W

T-Series 915nm, 940nm, or 976nm

Ultra-High Brightness Direct Diode Lasers 85W to 575W

PCB Laser Marking System

PCB Laser Marking Systems

RELATED COMPANIES

Lighthouse Photonics Inc

Provides sealed, turn-key, cost-effective, diode-pumped solid-state (DPSS) lasers for s...

Fibertek Inc

Specializes in the design, development, manufacture, and testing of advanced diode-pump...

Control Micro Systems Inc

Offers laser marking, laser cutting, laser drilling and laser welding systems for a wid...

Social Activity

  •  
  •  
  •  
  •  
  •  
Copyright © 2007-2014. PennWell Corporation, Tulsa, OK. All Rights Reserved.PRIVACY POLICY | TERMS AND CONDITIONS