Design of grating-assisted codirectional couplers with discrete inverse-scattering algorithms

Brenne, Jan Kristoffer; Skaar, Johannes

doi:10.1109/jlt.2003.808648

Cited by 43 publications

(45 citation statements)

References 21 publications

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“…ρ j is the coupling strength of the instantaneous scattering point z j along the structure. The discretized coupling coefficient κ(z j ) can be obtained from the coupling strength ρ j by using the following relation [27]:…”

Section: Numerical Methods and Analysismentioning

confidence: 99%

“…If the discretized coupling model is reformulated into the spacetime domain, the discrete layer-peeling algorithm (DLP) by using the inverse-scattering method becomes efficient and is briefly introduced as follows (see details in Ref. [13,16,27,31]). We define time delay with respect to the propagation of ordinary wave, i.e., ordinary wave propagates without time delay.…”

Section: Numerical Methods and Analysismentioning

confidence: 99%

“…Since the value of ρ N is obtained from the output spectra, we can peel this layer off and calculate the impulse responses of layer N − 1 by using transfer matrix method [27] and repeat the procedure until all the layers have been reconstructed. After the coupling strength is known, we can get the coupling coefficient κ(z j ) of each layer from Eq.…”

Section: Numerical Methods and Analysismentioning

confidence: 99%

“…Therefore the polarization coupling in QPM gratings can be described by using co-propagating coupling mode theory [27]. The grating-assisted co-directional coupler is usually treated as a finite-impulseresponse (FIR) filter and each point in the impulse response is determined by the entire grating [28,29].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Retrieving quasi-phase-matching structure with discrete layer-peeling method

Zhang¹,

Zeng²,

Wang³

et al. 2012

Opt. Express

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Abstract:An approach to reconstruct a quasi-phase-matching grating by using a discrete layer-peeling algorithm is presented. Experimentally measured output spectra ofŠolc-type filters, based on uniform and chirped QPM structures, are used in the discrete layer-peeling algorithm. The reconstructed QPM structures are in agreement with the exact structures used in the experiment and the method is verified to be accurate and efficient in quality inspection on quasi-phase-matching grating.

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Section: Numerical Methods and Analysismentioning

confidence: 99%

Section: Numerical Methods and Analysismentioning

confidence: 99%

Section: Numerical Methods and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Retrieving quasi-phase-matching structure with discrete layer-peeling method

Zhang¹,

Zeng²,

Wang³

et al. 2012

Opt. Express

View full text Add to dashboard Cite

show abstract

“…[9][10][11] Inverse-scattering algorithms were also developed for reconstructing the structure of LPGs. [12][13][14] These algorithms were used for synthesizing LPGs according to their desired spectral properties. The inverse-scattering algorithms require knowledge of both the complex core-tocore and the complex core-to-cladding transmission spectra.…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of long-period fiber gratings from their core-to-core transmission function

Rosenthal

Horowitz

2006

J. Opt. Soc. Am. A

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In order to reconstruct the structure of a long-period grating, both the complex core-to-core transmission function and the complex core-to-cladding transmission function should be known. However, in practice, only the core-to-core transmission function of the grating can be measured. We demonstrate theoretically the reconstruction of long-period gratings from only the core-to-core transmission function. The reconstruction is performed by extracting the complex core-to-cladding transmission function of the grating from its core-to-core transmission function. Generally, the extraction is not unique; however, we show that by writing an additional grating in cascade to the interrogated grating, a unique reconstruction can be obtained. In weak long-period gratings, only the amplitude of the core-to-core transmission function is needed to reconstruct the grating. The results of our work can enable the experimental reconstruction of long-period gratings from their transmission function as well as the development of novel distributed sensors.

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Using of Intelligent Particle Swarm Optimization Algorithm to Synthesis the Index Modulation Profile of Narrow Ban Fiber Bragg Grating Filter

Liu

2006

Lecture Notes in Computer Science

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Design of grating-assisted codirectional couplers with discrete inverse-scattering algorithms

Cited by 43 publications

References 21 publications

Retrieving quasi-phase-matching structure with discrete layer-peeling method

Retrieving quasi-phase-matching structure with discrete layer-peeling method

Reconstruction of long-period fiber gratings from their core-to-core transmission function

Using of Intelligent Particle Swarm Optimization Algorithm to Synthesis the Index Modulation Profile of Narrow Ban Fiber Bragg Grating Filter

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