By Topic

Novel two-stage wavelength-routed access architecture employing spectral-grooming and replicated arrayed waveguide gratings

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $33
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
F. Farjady ; Fujitsu Telecommun. Europe Ltd. Res., UK ; M. C. Parker ; S. D. Walker

Wavelength-routing is becoming increasingly attractive for ATM optical access networks as it can offer improved power compared with splitter architectures. Arrayed waveguide gratings (AWGs) and their periodic properties have been exploited within access architectures capable of delivering multiple services with increased privacy, reduced crosstalk, and built-in upgradability. We develop the AWG concept by proposing a two-stage access architecture based on cascaded fine- and coarse-wavelength demultiplexers, where the free spectral range (FSR) of the fine AWG matches the passband period of the coarse AWG. With a conservative simulation, we show that using a 4 nm FSR, a channel spacing of 0.27 nm and with optical crosstalk better than -13 dB, a minimum of 100 users can be addressed with multi-gigabit information. Additional benefits offered by the architecture include relaxed sensitivity to component variation, commonality in coarse demultiplexer specification and potentially lower crosstalk

Published in:

Telecommunications, 1998. 6th IEE Conference on (Conf. Publ. No. 451)

Date of Conference:

29 Mar-1 Apr 1998