Fiber Bragg grating for spectral phase optical code-division multiple-access encoding and decoding

Fang, Xiaohui; Wang, Dongning; Li, Shichen

doi:10.1364/josab.20.001603

Cited by 13 publications

(8 citation statements)

References 17 publications

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“…Here we demonstrate the first-to third-order differentiators by our pulse shaper. Equation (1) indicates that the output spectrum can be reshaped by modifying the relative amplitude weights and phase shifts of the four taps. We can obtain a first-to third-order differentiators by controlling both amplitude and phase arrays to make sure that the transfer functions of the pulse shaper match the spectra of the first-, second-and third-order differentiators.…”

Section: First-to Third-order Differentiatorsmentioning

confidence: 99%

“…Optical arbitrary waveform generation (OAWG) plays a critical role in many applications, such as generating optical ultra-wide band (UWB) signal [1,2], optical pulse radar [3], alloptical temporal differentiator [4,5], and test of optical communication system. Although lots of OAWG schemes were reported using mature fiber grating techniques [2,[6][7][8][9][10][11][12], one of the most promising solutions is prone to be the miniaturization and integration with photonic integrated circuits, such as using indium phosphide (InP) platform [13,14] In this paper, we further demonstrate an OAWG and high-order photonic differentiator based on a four-tap FIR silicon integrated circuit.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Arbitrary waveform generator and differentiator employing an integrated optical pulse shaper

Liao¹,

Ding²,

Dong³

et al. 2015

Opt. Express

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Abstract:We propose and demonstrate an optical arbitrary waveform generator and high-order photonic differentiator based on a four-tap finite impulse response (FIR) silicon-on-insulator (SOI) on-chip circuit. Based on amplitude and phase modulation of each tap controlled by thermal heaters, we obtain several typical waveforms such as triangular waveform, sawtooth waveform, square waveform and Gaussian waveform, etc., assisted by an optical frequency comb injection. Unlike other proposed schemes, our scheme does not require a spectral disperser which is difficult to fabricate on chip with high resolution. In addition, we demonstrate first-, second-and third-order differentiators based on the optical pulse shaper. Our scheme can switch the differentiator patterns from first-to third-order freely. In addition, our scheme has distinct advantages of compactness, capability for integration with electronics. Yoo, "32 phase× 32 amplitude optical arbitrary waveform generation," Opt. Lett. 32(7), 865-867 (2007). 24.

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Section: First-to Third-order Differentiatorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Arbitrary waveform generator and differentiator employing an integrated optical pulse shaper

Liao¹,

Ding²,

Dong³

et al. 2015

Opt. Express

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show abstract

“…One way to generate such a spectrum is to consider CDMA filters composed of SFBGs (Fang et al 2003;Yin and Richardson 2009). As said in Sect.…”

Section: Cdma Principle and Implementationmentioning

confidence: 99%

“…This implementation is called optical CDMA (OCDMA). Those codes are then generated by optical guides, and in particular by sampled fiber Bragg gratings (SFBG) (Fang et al 2003;Yin and Richardson 2009). SFBGs are optical fibers based on a periodic perturbation of their refractive effective index, obtained by exposing it to UV radiations (Chuang et al 2004;Erdogan 1997;Maloetal.1995).…”

Section: Introductionmentioning

confidence: 99%

Design of code division multiple access filters based on sampled fiber Bragg grating by using global optimization algorithms

Ivorra

Mohammadi²,

Ramos³

2013

Optim Eng

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In this article, we focus on the design of code division multiple access filters (used in data transmission) composed of a particular optical fiber called sampled fiber Bragg grating (SFBG). More precisely, we consider an inverse problem that consists in determining the effective refractive index profile of an SFBG that produces a given reflected spectrum. In order to solve this problem, we use an original multilayers semi-deterministic global optimization method based on the search of suitable initial conditions for a given optimization algorithm. The results obtained with our optimization algorithms are compared, in term of complexity and final design, with those given by an hybrid genetic algorithm (the method generally considered in the literature for designing SFBGs).

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“…This is because they have distinct advantages in terms of ultra-wide bandwidth, flexible tunability, and immunity to electromagnetic interference. The applications of microwave photonics cover civil use and military project, such as electronic countermeasure, radar system [1], wireless communications [2], sensing, optical ultra-wide band (UWB) signal generation [3,4], all photonic temporal differentiator [5,6], and test of optical communication system. The trend in microwave photonic systems research is towards integration and chip miniaturization, which will result in advanced multi-component chips with greatly reduced size and weight compared to the conventional discrete component approach.…”

Section: Introductionmentioning

confidence: 99%

Advances on silicon-based integrated microwave photonics

Dong

Yan

Wang

et al. 2018

Smart Photonic and Optoelectronic Integrated Circuits XX

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Microwave photonic systems have huge potential for both existing and future applications, including radar, radiofrequency sensing and modern wireless communications due to their distinct advantages in terms of ultra-wide bandwidth, flexible tunability, and immunity to electromagnetic interference. There is a strong research trend in microwave photonic systems towards integration and miniaturization, resulting in multiple radio frequency functions on a single chip which is both compact and light weight. Thus integrated microwave photonics has attracted a lot of attentions and achieves significant improvements in last ten years. In this paper, we will review some research progresses on silicon-based integrated microwave photonics in our group, including highly efficient micro heater on silicon photonic chip, chip-scale microwave waveform generation, on-chip true time delay, and microwave photonic processing and measurement. Our schemes are all fabricated on silicon-on-insulator chips and have advantages of compactness and capability to integrate with electronic units. These chips may motivate the great application potentials in silicon-based integrated microwave photonics.

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Fiber Bragg grating for spectral phase optical code-division multiple-access encoding and decoding

Cited by 13 publications

References 17 publications

Arbitrary waveform generator and differentiator employing an integrated optical pulse shaper

Arbitrary waveform generator and differentiator employing an integrated optical pulse shaper

Design of code division multiple access filters based on sampled fiber Bragg grating by using global optimization algorithms

Advances on silicon-based integrated microwave photonics

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