Highly nonlinear liquid-filled photonic crystal fibers

Monfared, Yashar E.; Ponomarenko, Sergey A.

doi:10.1109/pn.2015.7292481

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…Single‐mode PCF is required for the transmission of signals for larger distances without interference . Furthermore, several geometries of PCF are examined with significantly higher nonlinearity . Leaky nature of the modes and imperfect structure of PCF together cause confinement loss.…”

Section: Introductionmentioning

confidence: 99%

Design of nonlinear photonic crystal fibers with ultra‐flattened zero dispersion for supercontinuum generation

2020

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The study reports on the design and performance of two air‐filled and two partial ethanol‐filled photonic crystal fiber (PCF) structures with a tetra core for supercontinuum generation. The PCFs are nonlinear with ultra‐flattened zero dispersion. Holes with smaller areas are used to create a tetra‐core PCF structure. Ethanol is filled in the holes of smaller area while the larger holes of cladding region are air‐filled. Optical properties including dispersion, effective mode area, confinement loss, normalized frequency, and nonlinear coefficient of the designed PCF structures are investigated via full vector finite difference time domain (FDTD) method. A PCF structure with lead silicate as wafer exhibits significantly better results than a PCF structure with silica as wafer. However, both structures report dispersion at a telecommunication wavelength corresponding to 1.55 μm. Furthermore, the PCF structure with lead silicate as wafer exhibits a very high nonlinear coefficient corresponding to 1375 W−1 km−1 at the same wavelength. This scheme can be used for optical communication systems and in optical devices by exploiting the principle of nonlinearity.

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Section: Introductionmentioning

confidence: 99%

Design of nonlinear photonic crystal fibers with ultra‐flattened zero dispersion for supercontinuum generation

2020

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“…To realize non-linear processes with low powers and in short interaction lengths, non-silica photonic crystal fibers (PCFs) made of high-index glasses such as tellurite [8], bismuth-oxide [9], and chalcogenide glasses [10] as well as PCFs filled with high-index liquids such as carbon-disulfide [11,12] are designed, studied and fabricated. Among different materials, chalcogenide glasses with a large refractive index of around 3, ultra-high non-linear refractive index of 3 × 10 −18 m 2 /W, and a high transmission window from 0.6 to 15 µm, open up new possibilities to design and develop compact non-linear devices [13].…”

Section: Introductionmentioning

confidence: 99%

Chalcogenide–Tellurite Composite Photonic Crystal Fiber: Extreme Non-Linearity Meets Large Birefringence

Ahmadian

Monfared

2019

Applied Sciences

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In this paper, we propose a novel design of a photonic crystal fiber (PCF) with tellurite-cladding, three rings of air-holes and elliptical concentration of As2S3 in the fiber core. The combined effect of tight mode confinement (an effective mode area of nearly 0.6 µm2), large non-linear refractive index of As2S3 and significant variation between the effective modal index values of the two orthogonal states of the fundamental guided mode leads to extreme non-linear coefficient and birefringence values, all achieved at the zero dispersion wavelength (ZDW) of 1550 nm. The corresponding birefringence and non-linear coefficient (7 × 10−3 and 28 W−1 m−1, respectively) are more than three orders of magnitude larger than that of the regular silica-based highly non-linear PCFs. In addition, we numerically demonstrate that by modifying the core and air-hole dimensions one can easily control the dispersion curve and tune the ZDW of the proposed fiber to any excitation wavelength ranging from near-infrared to short-wave-infrared, including optical telecommunication windows close to 1550 nm. The superior characteristics of the proposed elliptical-core composite PCF including extreme non-linearity, nearly-zero confinement loss (2.47 × 10−12 dB/cm), the ability to maintain polarization of light, and tunable ZDW can open the door to new possibilities in non-linear optics, optical telecommunications, optical signal processing, and sensing devices.

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“…Typically, FWM is generated using nonlinear fibers such as photonic crystal fibers [19,20] or highly nonlinear dispersion shifted fibers [21]. The generation of the FWM effect has also been demonstrated in holey fibers [22,23], as well as in semiconductor optical amplifiers (SOAs) [24][25][26]. The generation of the FWM effect in an SOA is influenced by the carrier density pulsation, carrier heating and spectra hole burning changes of the SOA's input signal and is of interest as it means that the FWM effect can have the potential to be realized through both optical and electronic means.…”

Section: Introductionmentioning

confidence: 99%

Generation of four-wave mixing with highly sharp idlers using 2 mm home-made side-polished fiber deposited by ZnO nanorod

et al. 2018

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A side-polished fiber with embedded zinc oxide nanorods (ZnO-NRs) is proposed, fabricated, and tested to generate four-wave-mixing (FWM). The side-polished fiber is manufactured by polishing a conventional single mode fiber to completely remove 2 mm of its cladding and its core partially, after which the fiber is simply immersed into a solution consisting of ZnO-NRs and allowing it to dry. A pump and a signal wavelength of 1550 and 1551 nm are injected into the fiber and generate idlers at 1549 and 1552 nm which agree well with theoretical values. Our experimental results show that the optimum FWM range is determined to be a 6 nm shifted away from the pump wavelength and occurs in the pump and wavelength spacing as narrow as 0.1 nm. The proposed system allows for the easy integration of optically active materials into a fiber.

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Highly nonlinear liquid-filled photonic crystal fibers

Cited by 7 publications

References 4 publications

Design of nonlinear photonic crystal fibers with ultra‐flattened zero dispersion for supercontinuum generation

Design of nonlinear photonic crystal fibers with ultra‐flattened zero dispersion for supercontinuum generation

Chalcogenide–Tellurite Composite Photonic Crystal Fiber: Extreme Non-Linearity Meets Large Birefringence

Generation of four-wave mixing with highly sharp idlers using 2 mm home-made side-polished fiber deposited by ZnO nanorod

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