You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
18 February 2011Effect of AWG filtering on spectrally sliced WDM PONs
In incoherent-injected WDM-PONs, it is shown through simulations and experiments that Flat-band athermal AWGs
with channel spacing of 100GHz have improved performance in terms of BER than their Gaussian-shape counterpart,
due to the effect of signal filtering. At a BER of 10-9, the power penalty is 2 dB for Flat-band AWGs and more than 4
dB for Gaussian AWGs, which do not reach the required BER. In addition, the effect of AWG detuning in the WDM-PON
systems is investigated. It is shown that by detuning the two Flat-band AWGs by 40GHz from their center
wavelength, an additional 0.5dB power penalty is induced.