PAM-DMT for intensity-modulated and direct-detection optical communication systems

Sian C.J. Lee; Sebastian Randel; Florian Breyer; A.M.J. Koonen

doi:10.1109/LPT.2009.2032663

PAM-DMT for intensity-modulated and direct-detection optical communication systems

Sian C.J. Lee
, Sebastian Randel
, Florian Breyer
, A.M.J. Koonen

Electro-Optical Communication

Research output: Contribution to journal › Article › Academic › peer-review

229 Citations (Scopus)

Abstract

A novel concept of pulse-amplitude-modulated discrete multitone modulation (PAM-DMT) is presented. It is shown that by pulse amplitude modulation of the subcarriers used, the resulting PAM-DMT time signal can be clipped asymmetrically to achieve a unipolar signal for transmission. The distortion resulting from this asymmetric clipping is orthogonal to the information signal itself, causing no additional penalty. Especially in intensity-modulated direct-detection optical channels, where a unipolar signal is to be transmitted, it is shown that this idea can improve system performance.

Original language	English
Pages (from-to)	1749-1751
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	21
Issue number	23
DOIs	https://doi.org/10.1109/LPT.2009.2032663
Publication status	Published - 1 Dec 2009

Keywords

Intensity modulation
Optical fiber communication
Orthogonal frequency-division multiplexing (ofdm)

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10.1109/LPT.2009.2032663

Cite this

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abstract = "A novel concept of pulse-amplitude-modulated discrete multitone modulation (PAM-DMT) is presented. It is shown that by pulse amplitude modulation of the subcarriers used, the resulting PAM-DMT time signal can be clipped asymmetrically to achieve a unipolar signal for transmission. The distortion resulting from this asymmetric clipping is orthogonal to the information signal itself, causing no additional penalty. Especially in intensity-modulated direct-detection optical channels, where a unipolar signal is to be transmitted, it is shown that this idea can improve system performance.",

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AU - Lee, Sian C.J.

AU - Randel, Sebastian

AU - Breyer, Florian

AU - Koonen, A.M.J.

PY - 2009/12/1

Y1 - 2009/12/1

N2 - A novel concept of pulse-amplitude-modulated discrete multitone modulation (PAM-DMT) is presented. It is shown that by pulse amplitude modulation of the subcarriers used, the resulting PAM-DMT time signal can be clipped asymmetrically to achieve a unipolar signal for transmission. The distortion resulting from this asymmetric clipping is orthogonal to the information signal itself, causing no additional penalty. Especially in intensity-modulated direct-detection optical channels, where a unipolar signal is to be transmitted, it is shown that this idea can improve system performance.

AB - A novel concept of pulse-amplitude-modulated discrete multitone modulation (PAM-DMT) is presented. It is shown that by pulse amplitude modulation of the subcarriers used, the resulting PAM-DMT time signal can be clipped asymmetrically to achieve a unipolar signal for transmission. The distortion resulting from this asymmetric clipping is orthogonal to the information signal itself, causing no additional penalty. Especially in intensity-modulated direct-detection optical channels, where a unipolar signal is to be transmitted, it is shown that this idea can improve system performance.

KW - Intensity modulation

KW - Optical fiber communication

KW - Orthogonal frequency-division multiplexing (ofdm)

UR - https://www.scopus.com/pages/publications/77955077535

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 23

ER -

PAM-DMT for intensity-modulated and direct-detection optical communication systems

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Keywords

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