Optical pulse compression based on stationary rescaled pulse propagation in a comblike profiled fiber

Inoue, Takashi; Tobioka, H.; Igarashi, Koji; Namiki, Shu

doi:10.1109/jlt.2006.874650

Cited by 40 publications

(25 citation statements)

References 22 publications

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“…Sect. 5 is devoted to review the technologies of a pulse compression fiber so-called comb-like profiled fiber (CPF) [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] that consists of alternate concatenations of HNLF and SMF. The features, the design guideline, and experimental results of optical pulse compression using CPFs are summarized, and we show that CPF is the most suitable for realizing a truly practical and flexible optical pulse source based on fiber-based pulse compressor.…”

Section: Ldmentioning

confidence: 99%

“…On the other hand, a coarse-step CPF, in which a steep compression process occurs, exhibits different features from the fine-step one. In fact, the authors and their collaborators have discovered a new class of nonlinear stationary pulse existing in the CPF pulse compression scheme, that is called "the stationary rescaled pulse (SRP)" [25,27]. SRP is interesting in that highly steep optical pulse compression beyond the ASC regime can be realized in a quite systematic manner.…”

Section: Soliton-type Pulse Compressionmentioning

confidence: 99%

“…However, for the applications of pulse compressor, we should rather focus on the condition required for generating the SPM-induced nonlinear phase shift of ϕ NL = 1 rad. Indeed, ϕ NL of 1 rad is a requirement for a compression process with the compression ratio of R ∼ 1.3 [27]. In some situations, R = 1.3 is not enough for the required total compression ratio, and the pulse compression process should be then cascaded.…”

Section: Various Kinds Of Hnlfs and Their Fommentioning

confidence: 99%

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Pulse compression techniques using highly nonlinear fibers

Inoue¹,

Namiki

2008

Laser & Photonics Reviews

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We review optical pulse compression techniques based on optical fibers. After discussing the fundamental issues on pulse compression, we summarize and categorize various kinds of techniques for pulse compression. We then focus on the use of highly nonlinear fiber (HNLF) in a pulse compressor to improve the performance. Introducing a figure of merit, we discuss which kind of HNLF of those recently reported is the most suitable for applications to pulse compression. As a HNLFbased optical pulse compressor, we review the technologies of the comb-like profiled fiber (CPF) which consists of alternate concatenations of HNLF and single-mode fiber. Discussing the features of CPF, we show that CPF is a truly practical and flexible solution for optical pulse compression. Finally, we refer to a new class of pulse compression called "the stationary rescaled pulse (SRP)", which is a characteristic nonlinear stationary pulse propagating through CPF. The propagation characteristics of the SRP provides a systematic and efficient design method of CPF as well as optical pulse compression that has never been achieved by conventional pulse compression schemes. As an example, a highly steep pulse compression in CPF is demonstrated, where a pulse is compressed by a factor of 2.1 per step of the CPF, and a 7.2 ps-width optical pulse is compressed to 0.38 ps with a four-step structure of CPF. Delay time [ps] Autocorrelation [a.u.] Wavelength [nm] 1540 1550 1560 -8 -4 0 4 8 Spectrum [20dB/div] Input After 1st step After 4th step After 3rd step After 2nd step Input After 1st step After 4th step After 3rd step After 2nd stepWaveforms of the optical pulses measured at the input and the output of each step of a four-step comb-like profiled fiber.

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Section: Ldmentioning

confidence: 99%

Section: Soliton-type Pulse Compressionmentioning

confidence: 99%

Section: Various Kinds Of Hnlfs and Their Fommentioning

confidence: 99%

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Pulse compression techniques using highly nonlinear fibers

Inoue¹,

Namiki

2008

Laser & Photonics Reviews

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“…1 for the soliton pulse train generation, a series of research has been implemented to analyze this cascaded structure. [2][3][4][5][6][7][8][9] CDPF is generally composed of a number of alternating lengths of high and low dispersion fibers [i.e., single mode fibers (SMFs) and dispersion shifting fibers (DSFs)] in which the dispersion effect and nonlinearity effect are spatially separated. 2 However, since the calculation and optimization for the dispersion, nonlinearity, and length of each fiber in CDPF are complex, a comb-like profiled fiber (CPF) was introduced to simplify the interconnected structure by using only two types of fibers, SMF and high nonlinearity fiber (HNLF).…”

Section: Introductionmentioning

confidence: 99%

“…3 CPF is widely used in the fields of pedestal-free adiabatic soliton pulse compression, high-repetition rate short optical soliton pulse train generation, wavelength-tunable femtosecond pulse source and, so on. [2][3][4][5][6][7][8][9] Recently, it has been found that a new application of CPF has the advantage of improving the resolution of an alloptical analog-to-digital conversion system. [10][11][12][13] In Ref.…”

Section: Introductionmentioning

confidence: 99%

Spectral compression in a comb-like distributed fiber and its application in 7-bit all-optical quantization

et al. 2014

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Abstract. Subpicosecond pulse spectral compression without the limitation of the adiabatic soliton transform status in a comb-like distributed fiber (CDF) is proposed and numerically demonstrated. The principle of spectral compression in a single concatenation of single-mode fiber and high nonlinear fiber is theoretically analyzed and numerically proved. A three-stage CDF is designed and simulated following the principle. The simulation results show that an overall spectral compression ratio of 56.23 is obtained. The designed three-stage CDF is used in an all-optical analog-to-digital system to improve the quantization resolution to 7.1 bit. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Supercontinuum Generation in Media with Sign‐Alternated Dispersion

Zia

Lüpken

Hellwig

et al. 2020

Laser & Photonics Reviews

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When an ultrafast optical pulse with high intensity is propagating through transparent material a supercontinuum can be coherently generated by self-phase modulation, which is essential to many photonic applications in fibers and integrated waveguides. However, the presence of dispersion causes stagnation of spectral broadening past a certain propagation length, requiring an increased input peak power for further broadening. Overcoming such spectral stagnation will be key to achieve practical integrated supercontinuum devices. We present a concept to drive supercontinuum generation with significantly lower input power by counteracting spectral stagnation via repeatedly alternating the sign of group velocity dispersion along the propagation. We demonstrate the effect experimentally in dispersion alternating fiber in excellent agreement with modeling, revealing almost an order of magnitude reduced peak power compared to uniform dispersion. Calculations reveal a similar power reduction also with integrated optical waveguides, simultaneously with a significant increase of flat bandwidth, which is important for on-chip broadband photonics.

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Optical pulse compression based on stationary rescaled pulse propagation in a comblike profiled fiber

Cited by 40 publications

References 22 publications

Pulse compression techniques using highly nonlinear fibers

Pulse compression techniques using highly nonlinear fibers

Spectral compression in a comb-like distributed fiber and its application in 7-bit all-optical quantization

Supercontinuum Generation in Media with Sign‐Alternated Dispersion

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