Book contents
- Frontmatter
- Contents
- List of contributors
- Introduction and preface
- 1 Figures of merit and performance analysis of photonic microwave links
- 2 RF subcarrier links in local access networks
- 3 Analog modulation of semiconductor lasers
- 4 LiNbO3 external modulators and their use in high performance analog links
- 5 Broadband traveling wave modulators in LiNb03
- 6 Multiple quantum well electroabsorption modulators for RF photonic links
- 7 Polymer modulators for RF photonics
- 8 Photodiodes for high performance analog links
- 9 Opto-electronic oscillators
- 10 Photonic link techniques for microwave frequency conversion
- 11 Antenna-coupled millimeter-wave electro-optical modulators
- 12 System design and performance of wideband photonic phased array antennas
- Index
- References
10 - Photonic link techniques for microwave frequency conversion
Published online by Cambridge University Press: 06 July 2010
Edited by
Book contents
- Frontmatter
- Contents
- List of contributors
- Introduction and preface
- 1 Figures of merit and performance analysis of photonic microwave links
- 2 RF subcarrier links in local access networks
- 3 Analog modulation of semiconductor lasers
- 4 LiNbO3 external modulators and their use in high performance analog links
- 5 Broadband traveling wave modulators in LiNb03
- 6 Multiple quantum well electroabsorption modulators for RF photonic links
- 7 Polymer modulators for RF photonics
- 8 Photodiodes for high performance analog links
- 9 Opto-electronic oscillators
- 10 Photonic link techniques for microwave frequency conversion
- 11 Antenna-coupled millimeter-wave electro-optical modulators
- 12 System design and performance of wideband photonic phased array antennas
- Index
- References
Summary
Introduction
Microwave frequency conversion techniques using analog photonic link technology are reviewed in this chapter. Opto-electronic or photonic radio-frequency (RF) signal mixing refers to converting intensity modulation of an optical carrier at one modulation frequency to intensity modulation or an electrical output at a different frequency. Frequency conversion optical links integrate the functions of electrical frequency mixing, traditionally provided by electronics, together with the transport of the RF carrier by the optical link. Photonic RF signal mixing using fiber optic link technology has recently become a topic of interest for reducing front-end hardware complexity of antenna systems and efficiently extending link frequency coverage into the millimeter-wave (MMW, 30–300 GHz) range. As commercial and military systems push to higher operating frequencies, microwave optical transmission and signal conversion techniques offer attractive benefits to designers of RF systems for communications, radar and electronic warfare applications
The frequency converting link diagram displayed in Fig. 10.1 can be used to introduce the concept of photonic link signal mixing as well as to introduce some nomenclature that will be used throughout the chapter. Here, an example antenna remoting configuration is shown that incorporates both optical RF up-conversion for transmit operation and optical RF down-conversion for receive operation. Referring to the transmit-mode up-conversion path of Fig. 10.1, the photonic frequency conversion occurs by multiplying the MMW optical local oscillator (LO) signal at fLO1, with the lower frequency RF input or information bearing signal at fIF1 in the integrated optical modulator (IOM).
- Type
- Chapter
- Information
- RF Photonic Technology in Optical Fiber Links , pp. 293 - 334Publisher: Cambridge University PressPrint publication year: 2002
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