Highly nonlinear optical fiber for all optical processing applications

Holmes, M.J.; Williams, David L.; Manning, R.J.

doi:10.1109/68.414698

Cited by 36 publications

(12 citation statements)

References 6 publications

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“…For example, a conventional HNLF was originally developed as a DSF having a large nonlinearity, and it had almost the same structure and material as that of a DSF comprising solid silica (SiO 2 ) glass with the germanium oxide (GeO 2 )-doped core surrounded by the clad [82]. A design optimization of the DSF structure could enhance the nonlinearity.…”

Section: Development Of Highly Nonlinear Fibermentioning

confidence: 99%

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: Development Of Highly Nonlinear Fibermentioning

confidence: 99%

Pulse compression techniques using highly nonlinear fibers

Inoue¹,

Namiki

2008

Laser & Photonics Reviews

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“…It consists of an EDFA, an opto-electric detector (PD), a phase locked loop (PLL), a driving circuit (DC), an optical amplitude modulator (AM.MOD), a highly nonlinear fiber (HNLF) [14] , and an optical band-pass filter (OBPF). According to demands, there are two schemes for placement of EDFA; one is that EDFA is before the coupler, and the other is behind the AM.MOD, and each of these schemes has its own advantages and disadvantages, respectively.…”

Section: Configuration Model and Operation Principlementioning

confidence: 99%

Fiber soliton-form 3R regenerator and its performance analysis

Zhu

Yang

2007

SCI CHINA SER F

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A novel fiber optical 3R regenerator based on optical soliton-effect using highly nonlinear fiber is constructed and investigated for the needs of the high rate and long-haul optical communications. The propagation equation of the pulses in the proposed optical 3R regenerator with the control of optical modulator and filter is established. By the use of the variational approach, the evolution of the distorted optical pulses in the regenerator and the functions of reamplification, reshaping, and retiming are investigated. The relation between the construction parameters and the output performance of the regenerator is discussed. The stable operation condition of the regenerator is revealed. optical regenerator, optical soliton, high nonlinear fiber, optical amplitude modulation, analysis of stability

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“…The first demonstration of optical parametric amplification was reported by Stolen in low-loss optical fibers [4]. With advent of highly nonlinear fibers (HNLFs) [5], FOPAs gained considerable attention in long distance communication systems. Gain as high as 49 dB is demonstrated [6] using FOPAs whilst wavelength tuning flexibility of FOPAs helped in achieving gain over bandwidth above 200 nm [7].…”

Section: Introductionmentioning

confidence: 99%

Novel Raman Parametric Hybrid L-Band Amplifier with Four-Wave Mixing Suppressed Pump for Terabits Dense Wavelength Division Multiplexed Systems

Kaur

Sharma

Kaur

2016

Advances in Optical Technologies

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We demonstrate improved performance of parametric amplifier cascaded with Raman amplifier for gain of 54.79 dB. We report amplification of L-band using 100 × 10 Gbps Dense Wavelength Division Multiplexed (DWDM) system with 25 GHz channel spacing. The gain achieved is the highest reported so far with gain flatness of 3.38 dB without using any gain flattening technique. Hybrid modulated parametric pump is used for suppressing four-wave mixing (FWM) around pump region, resulting in improvement of gain flatness by 2.42 dB. The peak to peak variation of gain is achieved less than 1.6 dB. DWDM system with 16-channel, 25 GHz spaced system has been analyzed thoroughly with hybrid modulated parametric pump amplified Raman-FOPA amplifier for gain flatness and improved performance in terms of BER and -factor.

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Highly nonlinear optical fiber for all optical processing applications

Cited by 36 publications

References 6 publications

Pulse compression techniques using highly nonlinear fibers

Pulse compression techniques using highly nonlinear fibers

Fiber soliton-form 3R regenerator and its performance analysis

Novel Raman Parametric Hybrid L-Band Amplifier with Four-Wave Mixing Suppressed Pump for Terabits Dense Wavelength Division Multiplexed Systems

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