雙向極化多工技術於無線光通訊傳輸系統之應用

Experimental Investigation of Bidirectional Polarization Multiplexing on Wireless Optical Communications

黃柏諺(Po-Yen Huang)

指導教授 ： 鄭旭志

國立虎尾科技大學/電機資訊學院/光電工程系光電與材料科技碩士班/碩士(2017年)

摘要

本研究提出一種雙向極化多工傳輸架構，利用光循環器傳送與接收訊號不互相干擾的特性來達成雙向傳輸，自由空間(Free space)部分則以兩個分光鏡以及4個偏振片來達成水平極化光和垂直極化光傳送訊號。
此篇論文傳送端訊號分別使用高畫質多媒體介面影音訊號(High Definition Multimedia Interface, HDMI)、類比訊號(10MHz正弦波)、數位訊號(Bit rate of )來進行傳輸。HDMI影音訊號是由HDMI/SDI轉換器將HDMI訊號轉為SDI串列格式，再藉由直接調變轉為光訊號由光發送器(Optical Transmitter)傳送。類比訊號以及數位訊號經由電光調變器(Electro-Optics Modulator, EOM)調變後進行傳送。並探討在同時雙向傳輸以及多位使用者傳輸下訊號之間的影響。

關鍵字

雙向傳輸 ； 無線光通訊 ； 極化多工 ； 高畫質多媒體介面

並列摘要

In this study, we proposed transmission architecture of bidirectional polarization multiplexing. We use the optical circulator to transmit and receive signals that do not interfere with each other. We can achieve a bidirectional transmission system. We use two beam splitters and four polarizers to transmit horizontal polarized light and vertical polarized light signals in free space. This paper we use the transmitted signal which is high definition multimedia interface (HDMI), analog signal (10MHz Sine wave) and digital signal (pseudorandom binary sequence, PRBS). HDMI signal use HDMI/SDI converter which convert the parallel signal to the serial signal. The serial signal will change to optical signal that is transmitted by optical transmitter. Analog signal and digital signal are modulated by electro-optics modulator. It can transmit to free space. We will discuss the impact of simultaneous bidirectional transmission and multi-user transmission.

並列關鍵字

Bidirectional transmit ； free space optical ； Polarization Multiplexing ； HDMI

參考文獻

[5] 黃柏融，2015, “結合光纖雷射與混合式極化/光分碼多工於無線光通訊之研究”，國立虎尾科技大學光電與材料科技研究所論文

[1] A. Mahdy, J.S. Deogun, “Wireless Optical Communications: A Survey, ” Wireless Communications and Networking Conference, Vol4, pp.2399-2404, 2004.

[2] D. Kedar, S. Arnon, “Urban optical wireless communication networks: the main challenges and possible solutions, ” IEEE Communications Magazine, Vol42,pp. S2-S7, 2004.

[8] Y. Matsui, H. Murai, S. Arahira, S. Kutsuzawa, and Y. Ogawa, “30-GHz Bandwidth 1.55-μm Strain-Compensated InGaAlAs-InGaAsP MQW Laser, ” IEEE Photonics Technology Letters, vol. 9, no. 1, pp. 25-27, January, 1997.

[9] C. H. Henry, “Theory of the linewidth of semiconductor lasers, ” IEEE Journal of Quantum Electronics, vol. QE-18, no. 2, pp. 259-264, February, 1982.