Coherence of subsequent supercontinuum pulses generated in tapered fibers in the femtosecond regime

Türke, D.; Pricking, Sebastian; Husakou, Anton; Teipel, J.; Herrmann, Joachim; Gießen, Harald

doi:10.1364/oe.15.002732

Cited by 31 publications

(15 citation statements)

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“…In silica OM, supercontinuum has been generated over two octaves [76][77][78][79]; yet, the small size affects the overall dispersion profile resulting in a poorer spectral flatness [80]. For increasing powers, a decreasing degree of coherence has been observed and was attributed to phase noise [81]. The mechanism originating supercontinuum has been investigated both for fs-and for ps-pulses [82]: while in the former self phase modulation and solitons [83] are the most important phenomena, in the latter four wave mixing dominates.…”

Section: Confinementmentioning

confidence: 99%

[INVITED] Optical microfibre devices

Brambilla

2016

Optics & Laser Technology

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In the last decade optical fibre tapers with micrometer diameter (often called microfibers) have been investigated for numerous applications ranging from sensing to wavelength convertors, telecom and optical manipulation. This paper reviews the various applications of microfibres. 1. Optical microfibres Although microfibers with diameters comparable to the wavelength have been manufactured for nearly half of a century [1], their application in devices has been limited because of the perceived difficulty to achieve low-loss propagation [2]. Microfibres have been manufactured from a variety of different materials including silica [3-8], silicon [9,10], phosphate [11], tellurite [11], lead-silicate [12], bismuthate [12] and chalcogenide glasses [13] and a variety of polymers [14-19]. Most of the microfibers exhibited an irregular profile along their length which resulted in high propagation losses in devices. In the last decade the use of the flame-brushing technique [3-8] allowed to manufacture microfibers with losses smaller than 0.01dB/mm, sufficiently low for the manufacture of devices for sensing, comms, wavelength conversion and optical manipulation. Optical microfibers (OMs) are optical fibre tapers with diameters comparable to the wavelength of light propagating in them. They generally fabricated by tapering optical fibres and therefore result connected to conventional optical fibres by transition regions (Fig. 1). If the transition region has a suitably small angle, a single mode launched in the optical fibre pigtail core is adiabatically transferred in a single mode guided by the cladding/external medium interface and no power occurs into other modes.

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Section: Confinementmentioning

confidence: 99%

[INVITED] Optical microfibre devices

Brambilla

2016

Optics & Laser Technology

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“…The stability of SC has been studied quite extensively. Previous results have characterized it in terms of the radio-frequency noise [7], in terms of the pulse-to-pulse coherence |g 12 (1) | [8][9][10][11][12][13][14][15], in terms of the pulse-to-pulse fluctuation of spectral intensity [16,17], and in terms of second order coherence [18]. The connection between the noise properties of SC and the formation of rogue waves has also been studied [19].…”

Section: Introductionmentioning

confidence: 99%

Experimental measurement of supercontinuum coherence in highly nonlinear soft-glass photonic crystal fibers

et al. 2017

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We present experimental measurements illustrating the power-dependent coherence evolution for supercontinuum generated in highly nonlinear SF6 photonic crystal fibers. The measurements were performed for fiber lengths close to and much longer than the soliton fission length. Simulations of the spectral evolution were also carried out to accompany the experimental observation. Many parameters were estimated by matching the simulated and the measured evolution. Both the measured and the simulated coherence evolution confirm the association between coherence degradation and soliton fission.

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“…Moreover, for femtosecond pump pulses, the grade of spectral coherence and the stability of phase are considerably higher than longer pulses. These two properties are crucially important for some applications such as optical frequency metrology and optical coherence tomography [17].…”

Section: Introductionmentioning

confidence: 99%

Mid-IR supercontinuum pumped by femtosecond pulses from thulium doped all-fiber amplifier

Luo¹,

Sun²,

Liu³

et al. 2016

Opt. Express

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We present a mid-infrared (mid-IR) supercontinuum (SC) light source pumped by femtosecond pulses from a thulium doped fiber amplifier (TDFA) at 2 μm. An octave-spanning spectrum from 1.1 to 3.7 μm with an average power of 253 mW has been obtained from a single mode ZBLAN fiber. Spectral flatness of 10 dB over a 1390 nm range has been obtained in the mid-IR region from 1940 - 3330 nm. It is resulted from the enhanced self phase modulation process in femtosecond regime. The all-fiber configuration makes such broadband coherent source a compact candidate for various applications.

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Coherence of subsequent supercontinuum pulses generated in tapered fibers in the femtosecond regime

Cited by 31 publications

References 0 publications

[INVITED] Optical microfibre devices

[INVITED] Optical microfibre devices

Experimental measurement of supercontinuum coherence in highly nonlinear soft-glass photonic crystal fibers

Mid-IR supercontinuum pumped by femtosecond pulses from thulium doped all-fiber amplifier

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