Photoparametric amplifier for optical wireless communication system
UNSPECIFIED (2001) Photoparametric amplifier for optical wireless communication system. In: 6th IEEE High Frequency Postgraduate Colloquium, CARDIFF UNIV, SCH ENGN, CARDIFF, WALES, SEP 09-10, 2001. Published in: 2001 HIGH FREQUENCY POSTGRADUATE STUDENT COLLOQUIUM pp. 168-173.Full text not available from this repository.
In this article a novel receiver based on Photoparametric Amplifier (PPA), which one of the alternative for receiver detection and amplification techniques is fully described. The PPA mode of operation involves optical detection and amplification within a single device. The amplifier operation is based on nonlinear characteristics of the photodiode and therefore, the mechanism constituting gain is highly nonlinear and different to that in conventional amplifier/mixer chain. It is able to provide selectivity and sensitivity at the same time, as required for wireless optical communications. In the proposed approach, the detector, front-end amplifier and mixer chain, are replaced by a single device, which reduced component count and therefore cost directly. Under optimum test conditions, the research group has demonstrated a power gain of 17 dB over a baseband detector (BW of 25 MHz), with improved noise performance.
|Item Type:||Conference Item (UNSPECIFIED)|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
|Journal or Publication Title:||2001 HIGH FREQUENCY POSTGRADUATE STUDENT COLLOQUIUM|
|Editor:||Tasker, PJ and Porch, A|
|Number of Pages:||6|
|Page Range:||pp. 168-173|
|Title of Event:||6th IEEE High Frequency Postgraduate Colloquium|
|Location of Event:||CARDIFF UNIV, SCH ENGN, CARDIFF, WALES|
|Date(s) of Event:||SEP 09-10, 2001|
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