OPN March 2003
Cover Story
The Evolution of SONET/SDH Over WDM

Paul Bonenfant
Among the promising innovations moving to market: a fully automated optical layer and fully integrated synchronous optical network/synchronous digital hierarchy over wavelength division multiplexing. more>>
None
Fiber to the Home Why "the Last Mile" Is Truly the Hardest
Jeff Hecht
After decades of talk, fiber-to-the-home installations are now a reality in some U.S. communities. The key players are not giant phone or cable-TV companies but small public utilities, rural phone cooperatives and upscale housing developers. more>>
None
Novel Fiber Lasers and Applications
Luis A. Zenteno and Donnell T. Walton
Under impetus from the telecom market, new types of fiber lasers have been developed and deployed. On the horizon are new applications that demand transmission at different wavelengths and higher output powers. more>>
None
The Invention of "Light Writing," or How the Cosmos Came to Draw Itself
Brian S. Baigrie
In the nineteenth century, scientists began to explore ways of “fixing” the image thrown by a lens. The invention of the daguerreotype was followed by the appearance of less expensive techniques, including the tintype. The photoheliograph, a device for taking telescopic photographs of the sun, was unveiled in 1854. more>>
None
Tunable MEMS Devices for Optical Networks
Jill D. Berger and Doug Anthon
Dynamic wavelength provisioning is the greatest benefit associated with the use of tunable lasers and filters in transparent networks. A prerequisite is the availability of tunable devices that meet the rigorous performance requirements of fixed wavelength transceivers—at comparable costs. more>>
Global Optics
OSA Fellow Travel Grant Opens Doors in Russia
Barry R. Masters
To increase awareness of optics and
photonics around the world, each year OSA
awards a grant of up to $1000 to fund travel
by Fellows to developing nations. Barry R.
Masters, one of the 2002 recipients of the
Fellow Travel Grants, travelled to Russia in
October, where he lectured on nonlinear
optical microscopy, confocal microscopy and
in vivo three-dimensional (3D) imaging of
the human cornea and lens. more>>
Light Touch
Fun With Photonics: Experiments with Optically Active Materials
Keigo Iizuka
OSA Fellow Keigo Iizuka developed the
hands-on learning program, “Fun
with Photonics,” to spark interest in optics
among members of the general public. The
series was first presented to automotive
engineers at Omron Corporation, Komaki
City, Japan. In this, the fifth installment in
the series, Iizuka describes the fundamental
characteristics of optically active materials. more>>
Optical Engineering
Interaction of Light with Subwavelength Structures
Masud Mansuripur, Armis R. Zakharian and Jerome V. Moloney
When a light field interacts with structures that have
complex geometric features comparable in size to the
wavelength of the light, it is not permissible to invoke the
assumptions of the classical diffraction theory, which simplify
the problem and allow for approximate solutions. For such
cases, direct numerical solutions of the governing equations are
sought through approximating the continuous time and space
derivatives by the appropriate difference operators. more>>
OSA Today
Recommendations of the OSA Publications Long-Term Planning Group
OPN staff
A recently published report on what’s
in store for OSA publications says
that print-journal subscriptions may
dwindle and subscriptions to online
journals will thrive through the end of
the decade. The report also predicts that
OSA can continue to rely on this primary
source of net revenue. more>>
The History of OSA
The Launch of OSA’s Second Journal: Applied Optics
John N. Howard
The OSA Board of Directors, meeting in
New York City in 1959, decides the time
has come for a second journal. The decision
is motivated in part by a desire to meet the
competition of commercial publications,
chief among them Infrared Physics. more>>
Washington Focus
Scientist Lobbying Led to Newest NIH Institute
Tom Price
The newest addition to the National
Institutes of Health—the National
Institute of Biomedical Imaging and
Bioengineering—is the fruit of persistent
lobbying by scientists and engineers. The institute, which hosted its first
advisory council meeting in January, took
an important step forward when radiologist
Roderic Pettigrew became its first
director last fall. more>>