Bidirectional WDM PON using light-emitting diodes spectrum-sliced with cyclic arrayed-waveguide grating

We proposed and demonstrated a bidirectional wavelength-division-multiplexing passive optical network by using spectrum-sliced light-emitting diodes (LEDs) with cyclic arrayed-waveguide gratings (AWGs). When the spectrum-slicing technique is used, it is often difficult to secure an adequate amount o...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 16; no. 10; pp. 2380 - 2382
Main Authors Han, K.H., Son, E.S., Choi, H.Y., Lim, K.W., Chung, Y.C.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.10.2004
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Arrayed waveguide gratings
Bidirectional
Circuits
Diffraction gratings
Dispersions
Gratings (spectra)
Light emitting diodes
Optical arrays
Optical crosstalk
Optical losses
Optical receivers
Optical sensors
Passive optical networks
Power generation
Receivers
Slicing
Wavelength division multiplexing
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Summary:We proposed and demonstrated a bidirectional wavelength-division-multiplexing passive optical network by using spectrum-sliced light-emitting diodes (LEDs) with cyclic arrayed-waveguide gratings (AWGs). When the spectrum-slicing technique is used, it is often difficult to secure an adequate amount of system margin due to the large slicing loss and low output power of LED. To overcome this problem, we reduced the slicing loss by using all the peaks of the spectrum-sliced light (separated by the free-spectral range of AWG) and improved the receiver sensitivity by using the forward-error correction technique. The excessive dispersion penalty (caused by using multiple peaks) was suppressed by using a simple dispersion precompensation circuit.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2004.833865