Flexible quadrature amplitude modulation with semiconductor optical amplifier and electroabsorption modulator

Bernhard Schrenk; Stefanos Dris; Paraskevas Bakopoulos; Ioannis Lazarou; Karsten Voigt; Lars Zimmermann; Hercules Avramopoulos

doi:10.1364/OL.37.003222

Flexible quadrature amplitude modulation with semiconductor optical amplifier and electroabsorption modulator

Bernhard Schrenk, Stefanos Dris, Paraskevas Bakopoulos, Ioannis Lazarou, Karsten Voigt, Lars Zimmermann, and Hercules Avramopoulos

Optics Letters
Vol. 37,
Issue 15,
pp. 3222-3224
(2012)
•https://doi.org/10.1364/OL.37.003222

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Bernhard Schrenk, Stefanos Dris, Paraskevas Bakopoulos, Ioannis Lazarou, Karsten Voigt, Lars Zimmermann, and Hercules Avramopoulos, "Flexible quadrature amplitude modulation with semiconductor optical amplifier and electroabsorption modulator," Opt. Lett. 37, 3222-3224 (2012)

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Related Topics
Table of Contents Category
- Fiber Optics and Optical Communications
Optics & Photonics Topics
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The topics in this list come from the OSA Optics and Photonics Topics applied to this article.
Previously assigned OCIS codes
- Coherent communications (060.1660)
- Fiber optics communications (060.2330)
- Modulation (060.4080)

About this Article
History
- Original Manuscript: April 3, 2012
- Revised Manuscript: May 22, 2012
- Manuscript Accepted: June 6, 2012
- Published: July 27, 2012

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Abstract

Optical quadrature amplitude modulation (QAM) is experimentally demonstrated with a low-complexity modulator based on a semiconductor optical amplifier and electroabsorption modulator. Flexible amplitude/phase format transmission is achieved. The applicability of octary QAM for coherent optical access networks with sustainable $3 Gb / s$ per-user bandwidth is investigated for a long reach of 100 km, and its compatibility with a potentially high split is verified.

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Modulation Format	Rate ( $Gb / s$ )	Sensitivity $P_{in}$ (dBm)	Required OSNR (dB)
ASK	1	$- 43.7$	$< 9$
BPSK	1	$- 46.3$	$< 9$
QPSK	2	$- 43.7$	$< 9$
$BPSK + ASK$	2	$- 38.2$	12.8
8-QAM	3	$- 36$	17.8

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