Microphotonic Wideband Tapped Optical Delay Line FIR Filter Noise Analysis
Document Type
Journal Article
Publisher
John Wiley & Sons Inc
Faculty
Faculty of Computing, Health and Science
School
Electron Science Research Institute (ESRI)
RAS ID
3592
Abstract
MicroPhotonic broadband RF signal processors utilize true-time-delay methods to perform processing functions that cannot be achieved by conventional electronic methods. Using a tapped optical-delay line, a low-cost adaptive wideband FIR filter can be realized. We analyse the sources of noise for such a filter using commercially available VCSEL sources, PIN diodes, and transimpedance amplifiers. The power at each tap can be equal by using a suitably graded coating, or if the reflectivity is constant, there is an optimum reflectivity that maximizes the signal-to-noise ratio for a given number of taps, as we show in this paper.
DOI
10.1002/mop.20857
Comments
Jeffery, R. , & Alameh, K. (2005). Microphotonic Wideband Tapped Optical Delay Line FIR Filter Noise Analysis. Microwave & Technology Letters, 45(6), 476-480. Available here