Midinfrared supercontinuum generation via As_2Se_3 chalcogenide photonic crystal fibers

Saghaei, Hamed; Ebnali-Heidari, Majid; Moravvej-Farshi, Mohammad Kazem

doi:10.1364/ao.54.002072

Cited by 81 publications

(26 citation statements)

References 29 publications

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“…Furthermore, novel fiber-based IR sources are a potential growth area. There has been tremendous progress in IR supercontinuum generation from IR fibers [14,43,44,169,216,220,246,248,250,[468][469][470][471][472][473], but other nonlinear wavelength conversion schemes need also to be developed, such as Raman shifting and fourwave mixing. The high optical nonlinearity of IR glasses and the potential for dispersion engineering in high-index-contrast fibers may be exploited in producing IR laser combs [474][475][476].…”

Section: Future Prospectsmentioning

confidence: 99%

Infrared fibers

et al. 2015

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Infrared (IR) fibers offer a versatile approach to guiding and manipulating light in the IR spectrum, which is becoming increasingly more prominent in a variety of scientific disciplines and technological applications. Despite well-established efforts on the fabrication of IR fibers in past decades, a number of remarkable breakthroughs have recently rejuvenated the field-just as related areas in IR optical technology are reaching maturation. In this review, we describe both the history and recent developments in the design and fabrication of IR fibers, including IR glass and single-crystal fibers, multimaterial fibers, and fibers that exploit the transparency window of traditional crystalline semiconductors. This interdisciplinary review will be of interest to researchers in optics and photonics, materials science, and electrical engineering.

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Section: Future Prospectsmentioning

confidence: 99%

Infrared fibers

et al. 2015

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“…Supercontinuum generation has attracted research attention due to its wide application in the field of optics fluorescence microscopy , mid‐infrared SCG optical communication‐based DWDM , and other application. Various efforts using several techniques focused on broadening the generated spectrum.…”

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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“…This method results in higher nonlinear response to low pump energy. These particular properties have made PCF as an ideal candidate for nonlinear applications like SCG [7][8][9][10][11]. Broadband light sources based on SCG have already found applications in various fields such as, optical communication based on dense wavelength division multiplexing [12][13][14], fluorescence microscopy [15], designing tunable ultrafast femtosecond laser sources [16], precise measurement of optical frequencies [17], mid-infrared SCG for spectroscopy [9,18], and non-invasive imaging of sensitive surfaces based on optical coherence tomography (OCT) [19,20] that uses light waves to generate cross-section images of the retina and also the light-sensitive tissue lining the back of the eye [21].…”

Section: Introductionmentioning

confidence: 99%

White light generation using photonic crystal fiber with sub-micron circular lattice

Saghaei

Ghanbari

2017

Journal of Electrical Engineering

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In this paper, we study a photonic crystal fiber (PCF) with circular lattice and engineer linear and nonlinear parameters by varying the diameter of air-holes. It helps us obtain low and high zero dispersion wavelengths in the visible and nearinfrared regions. We numerically demonstrate that by launching 100 fs input pulses of 1, 2, and 5 kW peak powers with center wavelength of 532 nm from an unamplified Ti:sapphire laser into a 100 mm length of the engineered PCF, supercontinua as wide as 290, 440 and 830 nm can be obtained, respectively. The spectral broadening is due to the combined action of self-phase modulation, stimulated Raman scattering and parametric four-wave-mixing generation of the pump pulses. The third and the widest spectrum covers the entire visible range and a part of near infrared region making it a suitable source for both white light applications and optical coherence tomography to measure retinal oxygen metabolic response to systemic oxygenation.

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Midinfrared supercontinuum generation via As_2Se_3 chalcogenide photonic crystal fibers

Cited by 81 publications

References 29 publications

Infrared fibers

Infrared fibers

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

White light generation using photonic crystal fiber with sub-micron circular lattice

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