Microwave photonic transversal filter for intermodal dispersion equalisation

2005 ◽  
Vol 41 (4) ◽  
pp. 193
Author(s):  
J. Capmany ◽  
A. Martínez ◽  
D. Pastor ◽  
B. Ortega ◽  
J. Mora
Keyword(s):  
Microwave Photonic ◽  
Transversal Filter ◽  
Intermodal Dispersion

Reconfigurable microwave photonic transversal filter using a variable gain tilt filter

2008 ◽  
Vol 281 (5) ◽  
pp. 998-1002 ◽  
Author(s):  
Minglei Gong ◽  
Hao Chi ◽  
Xianmin Zhang ◽  
Xiaofeng Jin ◽  
Yingyin Kevin Zou
Keyword(s):  
Variable Gain ◽  
Microwave Photonic ◽  
Transversal Filter

scholarly journals Photonics West 2018 Invited Talk

2020 ◽  
Author(s):  
David Moss
Keyword(s):  
High Performance ◽  
Ring Resonator ◽  
Third Order ◽  
Microwave Photonic ◽  
Transversal Filter ◽  
Multi Wavelength ◽  
Cmos Compatible ◽  
On Chip ◽  
The Cost

We investigate the application of integrated micro-combs in RF photonic systems and demonstrate a microwave photonic intensity differentiator based on a Kerr optical comb generated by a compact integrated micro-ring resonator. The on-chip Kerr optical comb is CMOS-compatible and contains a large number of comb lines, which can serve as a high-performance multi-wavelength source for the transversal filter, thus greatly reduce the cost, size, and complexity of the system. The operation principle is theoretically analyzed, and experimental demonstrations of fractional-, first-, second-, and third-order differentiation functions based on the principle are presented.

scholarly journals High bandwidth RF and microwave photonic signal processing using Kerr micro-combs

2021 ◽  
Author(s):  
David Moss
Keyword(s):  
Signal Processing ◽  
Recent Progress ◽  
Microwave Signal ◽  
Hilbert Transforms ◽  
Powerful Source ◽  
Microwave Photonic ◽  
Transversal Filter ◽  
Large Numbers ◽  
High Bandwidth

Integrated Kerr micro-combs, a powerful source of many wavelengths for photonic RF and microwave signal processing, are particularly useful for transversal filter systems. They have many advantages including a compact footprint, high versatility, large numbers of wavelengths, and wide bandwidths. We review recent progress on photonic RF and microwave high bandwidth temporal signal processing based on Kerr micro-combs with spacings from 49-200GHz. We cover integral and fractional Hilbert transforms, differentiators as well as integrators. The potential of optical micro-combs for RF photonic applications in functionality and ability to realize integrated solutions is also discussed.

Reconfigurable microwave photonic transversal filter based on an integrated Kerr comb

2018 ◽  
Author(s):  
Brent E. Little ◽  
Roberto Morandotti ◽  
Arnan Mitchell ◽  
David J. Moss ◽  
Xingyuan Xu ◽  
...  
Keyword(s):  
Microwave Photonic ◽  
Transversal Filter

Compact microwave photonic transversal filter with 40-dB sidelobe suppression

2005 ◽  
Vol 17 (3) ◽  
pp. 663-665 ◽  
Author(s):  
M. Popov ◽  
P.-Y. Fonjallaz ◽  
O. Gunnarsson
Keyword(s):  
Sidelobe Suppression ◽  
Microwave Photonic ◽  
Transversal Filter

Tunable microwave photonic transversal filter

2015 ◽  
Vol 8 (2) ◽  
pp. 205-213
Author(s):  
Joseph W. Haefner ◽  
Christopher T. Middlebrook ◽  
Alexander L. Adams ◽  
Charles F. Middleton ◽  
J. Richard Desalvo
Keyword(s):  
Delay Line ◽  
Direct Detection ◽  
Polarization State ◽  
Temporal Delay ◽  
Optical Carrier ◽  
Optical Components ◽  
Microwave Photonic ◽  
Transversal Filter ◽  
Operating Wavelength ◽  
Rf Spectrum

We present a tapped tunable delay line filter for radiofrequency (RF) photonic filtering applications, capable of rapid tunability over a wide RF bandwidth limited only by the optical components’ losses, while maintaining independence from polarization state. Multiple fiber taps with contrasting dispersion slopes are used in intensity-modulated direct detection microwave photonic links. A temporal delay is generated between the signals within each arm of the link. Once a signal is received using balanced differential detection, nulls are generated as a function of the laser's operating wavelength. Tuning of the laser allows for a rapid shifting of the nulls in the RF spectrum to dynamically mitigate co-site interference. Through this method we demonstrate the potential for rapid tunability over the RF spectrum by the variation of the operating wavelength of the optical carrier.

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