Optical spectral broadening and supercontinuum generation in telecom applications

Smirnov, S. V.; Ania-Castañón, Juan Diego; Ellingham, T.J.; Kobtsev, Sergey; Kukarin, S. V.; Turitsyn, Sergei K.

doi:10.1016/j.yofte.2005.07.004

Cited by 137 publications

(71 citation statements)

References 160 publications

(220 reference statements)

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“…The spectrogram confirms that DW travels faster than all other spectral components of the pulse but Raman soliton created by the blue component of the spectrum remain fixed in time domain. The numeric value of 3  is found to be one governing factor of the Raman soliton dynamics under these conditions. …”

Section: Input Pulse Launched At the Anomalous Gvd Regionmentioning

confidence: 90%

“…Exactly opposite phenomenon happens for a negative input chirp and we observe less bending. Figure 10 shows the temporal and spectral evolutions of a 8th-order soliton for four negative values of δ 3 . As expected, the larger the absolute value of δ 3 , the earlier the soliton trajectory bends.…”

Section: Input Pulse Launched In the Normal Gvd Regionmentioning

confidence: 99%

“…In particular, trapping of the DW by a Raman soliton has been studied extensively [27][28][29]. The case of negative 3  has also been studied in the context of IPRS cancellation in PCFs having two ZD wavelengths [21,30]. For positive 3  , the DW moves slower than the Raman soliton and appears behind the Raman soliton during propagation.…”

Section: Input Pulse Launched At the Anomalous Gvd Regionmentioning

confidence: 99%

“…The case of negative 3  has also been studied in the context of IPRS cancellation in PCFs having two ZD wavelengths [21,30]. For positive 3  , the DW moves slower than the Raman soliton and appears behind the Raman soliton during propagation. However, because of the IPRS effect, the Raman soliton decelerates considerably.…”

Section: Input Pulse Launched At the Anomalous Gvd Regionmentioning

confidence: 99%

“…Supercontinuum (SC) generation in photonics crystal fibers (PCF) [1] has attracted considerable attention in recent years because of its wide applications ranging from spectroscopy and metrology [2] to telecommunications [3]. Extensive studies reveal that several physical phenomena are involved in the process of SC generation [4,5] when an ultrashort optical pulse experiences anomalous dispersion and undergoes enormous spectral broadening during its propagation inside a PCF.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Dynamics of Raman soliton during supercontinuum generation near the zero-dispersion wavelength of optical fibers

Roy¹,

Bhadra²,

Saitoh³

et al. 2011

Opt. Express

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Abstract:We observe unique dynamics of Raman soliton during supercontinuum process when an input pulse experiences initially normal group-velocity dispersion with a negative dispersion slope. In this situation, the blue components of the spectrum form a Raman soliton that moves faster than the input pulse and eventually decelerates because of Ramaninduced frequency downshifting. In the time domain, the soliton trajectory bends and becomes vertical when the Raman shift ceases to occur as the spectrum of Raman soliton approaches the zero dispersion point. Parts of the red components of the pulse spectrum are captured by the Raman soliton through cross-phase modulation and they travel with it. The influence of soliton order, input chirp and dispersion slope on the dynamics of Raman soliton is discussed thoroughly.

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Section: Input Pulse Launched At the Anomalous Gvd Regionmentioning

confidence: 90%

Section: Input Pulse Launched In the Normal Gvd Regionmentioning

confidence: 99%

Section: Input Pulse Launched At the Anomalous Gvd Regionmentioning

confidence: 99%

Section: Input Pulse Launched At the Anomalous Gvd Regionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dynamics of Raman soliton during supercontinuum generation near the zero-dispersion wavelength of optical fibers

Roy¹,

Bhadra²,

Saitoh³

et al. 2011

Opt. Express

View full text Add to dashboard Cite

show abstract

Wide Variability of Generation Regimes in Mode‐Locked Fiber Lasers

Smirnov

Kobstev

Turitsyn³

2017

Shaping Light in Nonlinear Optical Fibers

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Enhanced Supercontinuum Generation in Integrated Waveguides Incorporated with Graphene Oxide Films

Zhang

Yang

et al. 2023

Adv Materials Technologies

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Enhanced supercontinuum generation (SCG) is experimentally demonstrated in integrated silicon nitride (Si3N4) waveguides incorporating highly nonlinear graphene oxide (GO) in the form of 2D films. On‐chip integration of the 2D GO films with precise control of their thickness is realized by using a transfer‐free and layer‐by‐layer coating method. The control of the film length and coating position is achieved via window opening in the upper silica cladding of the photonic integrated chips. Detailed SCG measurements are performed using the fabricated devices with different waveguide geometries and GO film thicknesses, and the results are compared with devices without GO. Significantly improved spectral broadening of ultrashort optical pulses with ultrahigh peak powers exceeding 1000 W is observed for the hybrid devices, achieving up to 2.4 times improvement in the spectral bandwidth relative to devices without GO. Theoretical analyses for the influence of GO film thickness, coating length, coating position, and waveguide geometry are also provided by fitting the experimental results with theory, showing that there is still significant room for further improvement. This work opens up a new avenue toward improving the SCG performance of photonic integrated devices by incorporating functional 2D materials.

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Optical spectral broadening and supercontinuum generation in telecom applications

Cited by 137 publications

References 160 publications

Dynamics of Raman soliton during supercontinuum generation near the zero-dispersion wavelength of optical fibers

Dynamics of Raman soliton during supercontinuum generation near the zero-dispersion wavelength of optical fibers

Wide Variability of Generation Regimes in Mode‐Locked Fiber Lasers

Enhanced Supercontinuum Generation in Integrated Waveguides Incorporated with Graphene Oxide Films

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