Journal ArticleDOI
Wide-band fiber optic signal processor
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TLDR
In this paper, the operation of a 16-tap fiber-optic delay line configured as a bandpass filter with a fundamental frequency of 20 GHz over the frequency range from 0 to 125 GHz is discussed.Abstract:
Operation of a 16-tap fiber-optic delay line configured as a bandpass filter with a fundamental frequency of 20 GHz over the frequency range from 0 to 125 GHz is discussed Equal tap weights and spacings were used to facilitate comparison of experimental and predicted results More than 10/sup 11/ analog multiplications per second are performed in this relatively simple signal processing system Other processors for performing functions such as matched filtering and correlation can be implemented by appropriate choice of the mirror reflectances and fiber lengths >read more
Citations
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Journal ArticleDOI
Tunable microwave filtering using high dispersion fiber time delays
TL;DR: In this paper, a tapped delay line microwave filter based on the use of high dispersion fiber as the tunable time delay was proposed, which offers advantages of high bandwidth and tunability over current methods of time delay filtering.
Journal ArticleDOI
Microwave optical filters using in-fiber Bragg grating arrays
D.B. Hunter,Robert A. Minasian +1 more
TL;DR: In this article, a novel multitap optical transversal signal processor based on wavelength multiplexed Bragg grating arrays is presented, which enables the realization of a large number of taps for obtaining sharp bandpass filtering with high resolution and also enables arbitrary tap weight profiles.
Journal ArticleDOI
Tunable optical transversal filter based on chirped gratings
TL;DR: In this article, a continuously tunable optical notch transversal filter is demonstrated with a decade tuning range, the highest reported to date, based on the use of long chirped fibre Bragg gratings as tapping elements.
Journal ArticleDOI
High-performance microwave transversal filter using fiber Bragg grating arrays
TL;DR: In this paper, a microwave photonic traversal filter exploiting fiber Bragg grating (FBG) arrays and achieving a high-performance tunable bandpass microwave response are presented, which is affected by changing the optical carrier wavelength to select the operating gratings, and the high quality frequency response is obtained by weighting the reflections of the gratings.
Journal ArticleDOI
Reflectively tapped fibre optic transversal filter using in-fibre Bragg gratings
D.B. Hunter,Robert A. Minasian +1 more
TL;DR: In this paper, a novel optical transversal delay line signal processor based on the use of in-fibre Bragg grating reflectors as tapping elements is presented, and the requirements on reflectivity mismatch are analyzed, and this is accurately controlled using postprocessing techniques.
References
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Proceedings ArticleDOI
Optical-fiber delay line signal processing
Newton Steven A,K. P. Jackson,Behzad Moslehi,Moshe Tur,C. C. Cutler,Joseph W. Goodman,Herbert J. Shaw +6 more
TL;DR: In this paper, a general overview of the elementary forms of fiber circuitry that are useful for signal processing as well as the complex filters and systems that they can be used to construct is provided.
Journal ArticleDOI
Filter response of single-mode fibre recirculating delay lines
TL;DR: In this paper, singlemode fiber recirculating delay lines have been made on a single continuous loop of fiber with the use of fibre directional couplers, and these devices have been demonstrated as bandpass filters and as notch filters at center frequencies from 0.5 MHz to 1.3 GHz with a notch depth of over 45 dB.
Journal ArticleDOI
Ultra-high-speed modulation of 1.3-µm InGaAsP diode lasers
Chin B. Su,V. Lanzisera +1 more
TL;DR: In this article, the authors measured the nonlinear gain contribution to the damping factor obtained from the measured FM modulation index, which was used to predict the optical intensity modulation response and showed that damping factors of multilongitudinal-mode lasers are smaller than that of single-mode devices, suggesting that wider modulation bandwidths can be achieved with multimode devices than with singlemode devices.
Journal ArticleDOI
Fibre-optic delay-line devices for r.f. signal processing
TL;DR: In this paper, a bandpass filter and a discriminator for r.f. signals have been constructed by using fiber-optic delay lines, and their frequency-response characteristics have been investigated.
Journal ArticleDOI
Application of guided-wave optics in signal processing and sensing
TL;DR: In this article, a review of the use of guided-wave optics for signal processing and sensing is presented, and advantages and limitations of the technology are discussed, and an effort is made to provide some perspective on competing technologies and indicate some areas where future research might prove fruitful.
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