We report on the experimental investigation of supercontinuum generation by propagating subnanosecond pulses at both 1064 and 532 nm in a nonlinear microstructured optical fiber. Supercontinuum generation is a complicated nonlinear process for strong spectral broadening of light. Dispersion optimized for 1060 nm or 780 nm wavelength pumping, pure silica core, low losses. Low noise midinfrared supercontinuum generation in. Broadband, highpower midinfrared midir sources are critical for many applications. Thorlabs supercontinuum generation kits use femtowhite highly nonlinear fibers from nkt photonics to spectrally broaden femtosecond pulses near 800 nm. Supercontinuum sc generation towards the midinfrared mir range is an active field of research and development motivated by a wide range of applications including optical coherence tomography oct, material processing, optical sensing and absorption spectroscopy. We clearly show the nonsymmetrical role of the two pump waves on the spectrum buildup and.
Supercontinuum generation in nanostructured core gradient. Zhavoronkov, cascaded interactions between raman induced solitons and dispersive waves in photonic crystal fibers at the advanced stage of supercontinuum generation, optics express vol. Nolan corning incorpora ted, spar021, corning, ny 14831. Supercontinuum generation in optical fibers shenping li, a. Picosecond supercontinuum generation in large mode area. In this dissertation, supercontinuum generations in sapphire fibers under various conditions are investigated, and their corresponding effects are analyzed. We have identified that fibers with low dispersion are beneficial and that low residual hydroxyl oh is critical for broadband midir supercontinuum generation in. This paper provides an overview of the peculiar dispersive and nonlinear properties exhibited by these fibers, including the supercontinuum generation by femtosecond pumping.
Suspended core tellurite glass optical fibers for infrared. After a brief introduction on pulse propagation in optical fibers, we provide an overview of the different nonlinear mechanisms that lead to the generation of broadband supercontinuum spectra with. Blue extension of optical fibre supercontinuum generation. The optical fiber based supercontinuum source has recently become a significant scientific and commercial success, with applications ranging from frequency comb production to advanced medical.
Highlights in this study we fabricate the tellurite optical fibers with a suspended core. Taylor imperial college of science, technology and medicine, london. Optical fibers have been the primary medium for supercontinuum generation for their strong confinement of pump laser light, as well as for the feasibility of chromatic dispersion engineering, which significantly simplifies matching of the nonlinear mediums optical properties to intended pump lasers, compared to nonfiber systems alfano and. Supercontinuum generation in integrated photonics platforms. Christian rosenberg petersen from the technical university of denmark will introduce the field of midir supercontinuum generation starting from a brief look at the history of the field, all the way from the first early demonstrations to commercialization and. Pdf supercontinuum generation in optical fibers researchgate. The term supercontinuum does not cover a specific phenomenon but rather a plethora of nonlinear effect leading to considerable spectral broadening of optical pulses and.
Our specific aim is to use nonlinear schrodinger equation simulations to identify ways in which the rogue wave dynamics can be actively. Supercontinuum generation in optical fibers edited by j. Sapphire laser such as the tsunami or mai tai ultrafast oscillators. Supercontinuum generation in photonics crystal fibers. Optical system photonic crystal fiber supercontinuum. Osas mission is to promote the generation, dissemination, and application of knowledge in optics and photonics. It has wide application in pulse compression, coherence tomography and spectroscopy. Mar 10, 2020 optical fibers have been the primary medium for supercontinuum generation for their strong confinement of pump laser light, as well as for the feasibility of chromatic dispersion engineering, which significantly simplifies matching of the nonlinear mediums optical properties to intended pump lasers, compared to nonfiber systems alfano and. The study of complex spatiotemporal dynamics of nonlinear light propagation in multimode optical fibers mmfs has recently witnessed renewed interest with the experimental demonstration of highimpact new phenomena in emerging key areas of. Fibers free fulltext solid tellurite optical fiber based. Compared to alternatives such as fluorides and chalcogenides, tellurite fibers are more robust and can handle much higher power.
Rp photonics encyclopedia supercontinuum generation. Optical system photonic crystal fiber supercontinuum generation. Midinfrared supercontinuum generation in chalcogenide fibers. We present a numerical study of the evolution dynamics of optical rogue waves, statisticallyrare extreme redshifted soliton pulses arising from supercontinuum generation in photonic crystal fiber d. Cambridge core electronic, optoelectronic devices, and nanotechnology supercontinuum generation in optical fibers edited by j. Supercontinuum generation in optical fibers updated source code. Effective soliton fusion process at the advanced stage of. Dudley in chapter 3 of the book supercontinuum generation in optical fibers edited by j. Supercontinuum generation in scg800 photonic crystal fiber. Sep 17, 2019 supercontinuum white light lasers have become a wellestablished turnkey fiberlaser technology addressing a wide range of applications from biomedicalimaging to optical device characterization, where they add value due to their unique combination of optical parameters, including an extremely wide spectral coverage from 400 nm to 2400 nm, several w of optical output power, and a perfect. Midinfrared supercontinuum generation in optical fibers.
We design the fibers for infrared supercontinuum generation. Supercontinuum generation in chalcogenide layered spiral. Frequently, one uses photonic crystal fibers, which can be made with tailored chromatic dispersion properties and often also exhibit increased nonlinearity due to strong mode confinement. Supercontinuum generation by intermodal fourwave mixing in a. Jun 22, 2018 we perform a detailed theoretical and experimental investigation of supercontinuum generation in largemodearea photonic crystal fibers pumped by a highenergy, highrepetition rate picosecond nd. Supercontinuum generation in microstructured silica optical fibers. The newport supercontinuum kit is a complete solution from newport and spectraphysics designed specifically for the generation of supercontinuum with a femtosecond ti. The superk extenduv is a deepuv supercontinuum spectral extension unit for our superk extreme and compact supercontinuum lasers. Supercontinuum generation in optical fibers book, 2010. We accurately study the influence of several parameters such as input power, polarization state, and fiber length. In this work, we have demonstrated solid tellurite fibers fabricated by a stackanddraw process and investigated their potential for broadband midir supercontinuum generation. S up erc ontin u u m g en e r ation in o p tical f ibers the optical.
Midinfrared supercontinuum generation in a suspendedcore. Supercontinuum generation in the mir is typically achieved by propagating femtosecond pulses into the anomalous dispersion regime of a singlemode soft glass fibers. Supercontinuum generation is the formation of broad continuous spectra through propagation of short high power pulses through nonlinear media and was first observed in 1970. Main motivation to use sapphire fibers as optical media for supercontinuum generation is that they have characteristics of good transparency in midir, high laser damage threshold. Perhaps more interesting is the soliton dynamics involved in the supercontinuum generation, and our ability to tailor the optical. Optical solitons and supercontinuum generation in a tellurite. The same material combination is used in the two configurations for mirscg. Supercontinuum generation in optical fibers 1st edition by j. Here, we have chosen a highly nonlinear glass for its composition, the arsenic trisulfide, and we have determined its dispersion and nonlinear characteristics. Osa serves the global community through content and events that are authoritative, accessible, and archived, and through its education, advocacy and outreach programs. Midinfrared supercontinuum generation in lowloss singlemode terich chalcogenide fiber. Supercontinuum generation in optical fibers pdf free download. Get tunable uv light from a robust fiber laser source with 270480 nm range and 280 w output power.
Highly birefringent dooctagonal photonic crystal fibers with ultra. Supercontinuum generation is an inherent property of nonlinear optics. We demonstrate soliton selffrequency shift ssfs, multiple optical solitons and supercontinuum sc generation in a tellurite microstructured optical fiber tmof. The optical fiber based supercontinuum source has recently become a significant scientific and commercial success, with applications ranging from frequency comb production to advanced medical imaging. It can be achieved in certain optical fibers, for example. We conclude that we generate a supercontinuum in the important 12. Supercontinuum generation in helically twisted photonic.
Supercontinuum generation in optical fibers dudley j. Several types of microstructured optical fibers with optimized designs, have been developed during the recent years in order to enhance the supercontinuum generation. Design and analysis of microstructured optical fiber for. By using an optical parametric oscillator opo with the pulse of. Supercontinuum generation in nanostructured core gradient index. Supercontinuum generation in optical fibers request pdf. An alternate approach pertains to supercontinuum generation in nonlinear optical fibers which could extend the spectral coverage of the ensuing optical vortex beams.
Results show that the sc generation characteristic is polarization dependent. The ability to model scg in silicabased fibers has been a great benefit for developing commercial sc sources 5. Characteristics of supercontinuum generation in birefringent. This repository contains the matlab source code for simulating pulse propagation and supercontinuum generation in optical fiber as described by j. Supercontinuum generation with photonic crystal fibers and. Supercontinuum generation by photonic crystal fibers. This paper investigates sc generation characteristics in birefringent fibers numerically. Scgbookcode supercontinuum generation in optical fibers updated and additional source code. Here a modified generalized coupled nonlinear schrodinger equation is used in the simulation. In this webinar hosted by the osa fiber modeling and fabrication technical group, dr. Supercontinuum white light lasers have become a wellestablished turnkey fiberlaser technology addressing a wide range of applications from biomedicalimaging to optical device characterization, where they add value due to their unique combination of optical parameters, including an extremely wide spectral coverage from 400 nm to 2400 nm, several w of optical output power, and.
Osa harnessing and control of optical rogue waves in. Fused silica, however, becomes highly absorbing above. Supercontinuum generation using microstructured optical fibers. While optical fibers have been the workhorse of supercontinuum generation since its inception, integrated waveguide based sources of supercontinuum have become an active area of research in the twenty first century.
Citeseerx document details isaac councill, lee giles, pradeep teregowda. Numerical investigation of supercontinuum generation through. We perform a detailed theoretical and experimental investigation of supercontinuum generation in largemodearea photonic crystal fibers pumped by a highenergy, highrepetition rate picosecond nd. Supercontinuum generation in microstructured fibers and novel. These chipscale platforms promise to miniaturize supercontinuum. This typically leads to sc sources which are limited in terms of average power due to the low damage threshold associated with soft glasses and susceptible to noise due to the. The supercontinuum source shown is build from a nl1040 pcf pumped by a nanosecond 1064. Mar 02, 2020 supercontinuum sc generation towards the midinfrared mir range is an active field of research and development motivated by a wide range of applications including optical coherence tomography oct, material processing, optical sensing and absorption spectroscopy. Optical fibers have been the primary medium for supercontinuum generation for their strong confinement of pump laser light, as well as for the. We compare numerically the supercontinuum generation scg phenomenon in the midinfrared mir region through asse 2 as 2 s 5 chalcogenide based optical waveguides namely photonic crystal fiber pcf and riblike structures. Supercontinuum generation in optical fibers updated and additional source code. Supercontinuum generation in zblan fibersdetailed comparison. For example, with silicabased pcf, the fibers can be effectively used for coherent sc generation in the visible and nearir wavelength range, while optical fibers based on soft glasses such as tellurite, and leadbismuthgalate glass 11, 16, can support sc generation across the visible and midir range.
Visible supercontinuum generation in holey fibers by dual. Fdoct supercontinuum hsu ij, lu cw, deng cr, et al. The variation of sc is investigated by changing the fiber length, pump peak. The layered spiral microstructured optical fiber lsmof design allows higher nonlinearities than the most common microstructured optical fibers. The fact that only an oscillator with a few nj of energy is required to generate supercontinuum makes the pcfbased sources reliable, affordable and relatively simple to operate. Supercontinuum generation in microstructured fibers and. The proposed design holds allnormal dispersion property and offers very high nonlinear coefficient at a pump wavelength of 2. Supercontinuum generation in photonic crystal fiber. Supercontinuum sc generation describes the phenomenon that the output spectrum becomes much wider than the input spectrum when an ultrashort optical pulse passes through a nonlinear medium, such as bulk fused silica, photonic crystal fiber and so on. This page contains the original and in the future some updated matlab source code for simulating pulse propagation and supercontinuum generation in optical fiber as described by j.
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