新科学想法 › 学术文库 › 学术文献 › 浏览文献

Limits on the performance of RF-over-fiber links and their impact on device design

vickyz 添加于 2010-3-30 06:17 | 1843 次阅读 | 0 个评论

作者
Cox CH, Ackerman EI, Betts GE, Prince JL
摘要
This paper is divided into two major parts. Following a brief introduction that establishes some definitions and assumptions, Section II updates our earlier study on the limits of the RF performance of optical links. Section III reviews progress since our 1997 review paper in the development of devices enabling link performance closer to these limits, including (but not limited to): 1) cascade lasers that permit broad-band direct modulation links with gain >0 dB; 2) injection-locked edge- and surface-emitting lasers at 1300 and 1550 nm with modulation frequency responses as great as 40 GHz; 3) modulators with improved performance, especially electroabsorption modulators that now have switching voltages as low as 0.36 V, or handle optical powers as great as 60 mW, or have bandwidths as great as 50 GHz (but not all three of these in one device yet); and 4) high-speed photodetectors with high saturation currents, e.g., a 20-GHz device with a saturation current of 90 mA and a 55-GHz device with saturation at 50 mA. We conclude in Section IV by summarizing the component developments necessary for higher performance RF-over-fiber links, i.e.: 1) semiconductor lasers (for direct modulation) that have higher slope efficiency and bandwidth and lower relative intensity noise (RIN) at reasonable bias current levels; 2) continuous wave (CW) lasers (for external modulation) with higher fiber-coupled power and lower RIN; 3) higher frequency lower loss external modulators with more linear transfer functions and lower Vπ that can withstand larger CW optical powers; and 4) photodetectors with higher responsivity and bandwidth that respond linearly even when illuminated by greater average optical powers.
详细资料
- 文献种类: Journal Article
- 期刊名称: IEEE Transactions on Microwave Theory and Techniques
- 期刊缩写: IEEE Trans. Microwave Theory Techn.
- 期卷页: 2006年第54卷第2期 906-920页
- ISBN: 0018-9480
学科领域信息系统 » 电子通信
标签

Analog Photonics
相关链接 DOI URL
vickyz 的文献笔记订阅

Just as the title indicates