Simulation of optical FM direct detection transmission systems

Conventionally, optical intensity modulation (OOK, On-Off-Keying) is the common technique used in optical communication links. It is achieved by varying the drive current from a value just below threshold to a desired high level above the threshold. However, the resulting modulation is a mixture of...

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Bibliographic Details
Main Author: Lim, Chin Pong.
Other Authors: Lu, Chao
Format: Theses and Dissertations
Language:English
Published: 2009
Subjects:
Online Access:http://hdl.handle.net/10356/19629
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Institution: Nanyang Technological University
Language: English
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Summary:Conventionally, optical intensity modulation (OOK, On-Off-Keying) is the common technique used in optical communication links. It is achieved by varying the drive current from a value just below threshold to a desired high level above the threshold. However, the resulting modulation is a mixture of amplitude and frequency modulation. The laser output is chirped during the turn-on transient which broadens its spectrum and leads to undesirable pulse dispersion as the light travels through a dispersive optical fiber.