Feature Articles

Scaling Optical Fiber Networks: Challenges and Solutions

Increases in consumer demand and machine-to-machine network traffic are creating big challenges for letting optical communications continue to scale cost-effectively. Meeting those demands will require new forms of optical parallelism.

by Peter J. Winzer
ROADMs: Reconfigurable Optics for Agile Networks

Flexible, dynamic wavelength routing has already helped drive vast gains in optical network capacity—and the capabilities of wavelength routing’s core element, the ROADM, continue to evolve.

by Mark D. Feuer and Sheryl L. Woodward
LIGO: Finally Poised to Catch Elusive Gravitational Waves?

After a seven-year upgrade project incorporating cutting-edge lasers and optics, the Advanced Laser Interferometer Gravitational-Wave Observatory could start directly detecting gravitational waves as early as next year.

by Thomas F. Carruthers and David H. Reitze

Departments and Columns


Headliners, policy news, industry updates and book reviews.

Conversations in Optics
OFC 2015: Global Network Innovators

The Optical Fiber Communication Conference and Exposition will take place this month in Los Angeles, California (USA). Optics & Photonics News spoke with plenary speakers Neal S. Bergano, Pradeep Sindhu and Kevin Slavin about the future of optical fiber communications.

Advances in All-Optical Circuits

New photonic temporal integrators could push past some of the processing-speed limitations of electronic approaches.

Global Optics
Making Optics Standards Global

An ISO technical committee moves to put the “international” into standards for the optics industry.

Light Touch
Sacred Sun

Optical phenomena created by ice crystals and sunlight have inspired visions used by many, from prophets to flag designers to UFO skeptics.

In Memory
Charles Hard Townes

OSA lost a stellar member when Charles Hard Townes passed away. His most notable achievements were inventing and demonstrating the maser and then outlining the principles for an optical maser—the laser, a technology that has revolutionized the world.


Also in this Issue

President's Message
President's Message

Optical Feedback
Optical Feedback

Member News
Member News