The Photonics Circle of Excellence Awards:
Now in their 15th year, these annual awards have recognized the enterprising
companies and individuals who have refused to accept the status quo and have
instead pushed the limits of technology to develop new photonic products and
processes.
This year's 25 winning products, described on the following pages, were chosen
from among the hundreds of entries submitted from around the world. They have
survived the toughest scrutiny: judgment by the members of Photonics Spectra's
Editorial Advisory Board - a panel of recognized experts in a variety of disciplines.
To be eligible, products had to be commercially available between June 1, 2001,
and May 31, 2002.
The ceremony honoring this year's Distinction in Photonics and Circle of Excellence
award winners will take place Jan. 27 in San Jose, Calif:, at the Fairmont Hotel,
concurrently with Photonics West.
The product for Which Crystal Fibre was Granted the Award:
Crystal Fibre designed its highly nonlinear photonic crystal fiber with zero-dispersion
wavelength at 1.55 µm to facilitate the evolution from low-bit-rate electro-optical
networks to high-bit-rate all-optical networks.
The company, based in Birkerød, Denmark, says that the fiber has a nonlinear
coefficient two times that of standard nonlinear fiber and that it has already
been demonstrated at the Research Center COM at the Technical University of
Denmark in a nonlinear optical loop mirror, demultiplexing a bit stream of 160
Gb/s down to 10 Gb/s without electro-optical conversion. The demultiplexer normally
operates with 2.5 km of dispersion-shifted step-index fiber, but the photonic
crystal fiber enabled operation with only 50 m of fiber, improving stability
and saving cost. The fiber is polarization-maintaining with a birefringence
on the same order as standard polarization-maintaining fibers. The microstructured
region enables high design flexibility, and both zero-dispersion wavelength
and dispersion slope can be designed to fit different applications.
The fiber's applications include 2R regenerators, optical parametric amplifiers,
wavelength converters, optical sampling and supercontinuum generation. Supercontinua
are useful not only for telecommunications, but also in fields such as spectroscopy
and optical coherence tomography, where supercontinuum-generating photonic crystal
fibers have been used as broadband light sources in the life sciences. The supercontinuum
also can be used for metrology, as the generated frequency comb can be used
as an optical clock.