https://scholars.lib.ntu.edu.tw/handle/123456789/499248
標題: | Impact of local oscillator intensity noise on performance of coherent subcarrier multiplexing system using common local oscillator (CLO) | 作者: | Lee, Y.-H. HEN-WAI TSAO |
關鍵字: | Multiplexing; Noise; Optical communication; Oscillators | 公開日期: | 1991 | 卷: | 27 | 期: | 23 | 起(迄)頁: | 2133-2135 | 來源出版物: | Electronics Letters | 摘要: | The impact of local oscillator intensity noise on the performance of a coherent subcarrier multiplexing (CSCM) system using a common local oscillator (CLO) is analysed. For a given LO power, RIN noise, and thermal noise, the CNR can be expressed in terms of x, the ratio of σsh2 + σth2over σRIN2 and, for x ≪ 1, the CNR decreases as LO power increases; for x ≫ 1, the CNR increases as the LO power increases; as x approaches 1, there exist an optimum value of local oscillator power and a corresponding maximum CNR. For a system with RIN = − 150 dB/Hz, Ps = −20 dBm, P = 0·02, N = 40, NF = 3dB and B = 10 MHz, the (PLO)optis found to be −4 dBm and (CNR)max 22·5 dB. © 1991, The Institution of Electrical Engineers. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85024344700&doi=10.1049%2fel%3a19911321&partnerID=40&md5=e94c006f1add2378d1e4a211f4d9f165 | DOI: | 10.1049/el:19911321 |
顯示於: | 電機工程學系 |
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