Mid-infrared supercontinuum generation in chalcogenides

Yu, Yi; Gai, Xin; Wang, Ting; Ma, Pan; Wang, Rongping; Yang, Zhiyong; Choi, Duk‐Yong; Madden, Steve; Luther‐Davies, Barry

doi:10.1364/ome.3.001075

Cited by 169 publications

(96 citation statements)

References 162 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The SC spectra extending from the visible to 6 μm and from the visible to 4 μm were reported in tellurite glass using the pump pulses with central wavelengths of 1.6 μm [166] and 2.05 μm [167], respectively. A flat SC in the 2.5-7.5 μm range was produced in bulk chalcogenide glass using the pump pulse with a central wavelength of 5.3 μm [168]. The SC spectra with a remarkable mid-infrared coverage from 2.5 to ~11 μm were produced in As 2 S 3 and GeS 3 bulk chalcogenide glass samples using 65 fs pulses at 4.8 μm [169].…”

Section: ]mentioning

confidence: 99%

Ultrafast supercontinuum generation in bulk condensed media

Dubietis¹,

Tamošauskas²,

Šuminas³

et al. 2017

Lith. J. Phys.

171

View full text Add to dashboard Cite

Nonlinear propagation of intense femtosecond laser pulses in bulk transparent media leads to a specific propagation regime, termed femtosecond filamentation, which in turn produces dramatic spectral broadening, or superbroadening, termed supercontinuum generation. Femtosecond supercontinuum generation in transparent solids represents a compact, efficient and alignment-insensitive technique for generation of coherent broadband radiation at various parts of the optical spectrum, which finds numerous applications in diverse fields of modern ultrafast science. During recent years, this research field has reached a high level of maturity, both in understanding of the underlying physics and in achievement of exciting practical results. In this paper we overview the state-of-the-art femtosecond supercontinuum generation in various transparent solid-state media, ranging from wide-bandgap dielectrics to semiconductor materials and in various parts of the optical spectrum, from the ultraviolet to the mid-infrared spectral range. A particular emphasis is given to the most recent experimental developments: multioctave supercontinuum generation with pumping in the mid-infrared spectral range, spectral control, power and energy scaling of broadband radiation and the development of simple, flexible and robust pulse compression techniques, which deliver few optical cycle pulses and which could be readily implemented in a variety of modern ultrafast laser systems.

show abstract

Section: ]mentioning

confidence: 99%

Ultrafast supercontinuum generation in bulk condensed media

Dubietis¹,

Tamošauskas²,

Šuminas³

et al. 2017

Lith. J. Phys.

171

View full text Add to dashboard Cite

show abstract

“…In a variety of waveguides, including silicon nitride waveguides [24] and chalcogenide waveguides [25] supercontinuum generation has been demonstrated. It can be shown that the widest supercontinuum spectra are generated when nonlinear waveguides are pumped at a wavelength were they have a small anomalous dispersion (for positive n 2 ) [20].…”

Section: Ultrashort Pulses In the Telecommunication Bandmentioning

confidence: 99%

Nonlinear optical interactions in silicon waveguides

et al. 2017

View full text Add to dashboard Cite

Abstract:The strong nonlinear response of silicon photonic nanowire waveguides allows for the integration of nonlinear optical functions on a chip. However, the detrimental nonlinear optical absorption in silicon at telecom wavelengths limits the efficiency of many such experiments. In this review, several approaches are proposed and demonstrated to overcome this fundamental issue. By using the proposed methods, we demonstrate amongst others supercontinuum generation, frequency comb generation, a parametric optical amplifier, and a parametric optical oscillator.

show abstract

“…Our group, in particular, recently reported spectral broadening spanning from 1.6 to 5.9 µm at -20 dB in an As 2 S 3 stepindex fiber driven by a 3.1 µm laser [213]. By using a longer driving wavelength 660 at 4 µm in a bulk chalcogenide glass a spectrum spanning from 2.5 µm to 7.5 µm could be demonstrated [214]. Simulations indicate that pumping an As-Se chalcogenide fiber at 4.5 µm could generate a spectrum from 3 µm to 12 µm wavelength [215].…”

mentioning

confidence: 94%

Ultrashort pulse generation in the mid-IR

Pires

Baudisch

Sánchez

et al. 2015

Progress in Quantum Electronics

104

View full text Add to dashboard Cite

Recent developments in laser sources operating in the mid-IR (3 -8 µm), have been motivated by the numerous possibilities for both fundamental and applied research. One example is the ability to unambiguously detect pollutants and carcinogens due to the much larger oscillator strengths of their absorption features in the mid-IR spectral region compared with the visible. Broadband sources are of particular interest for spectroscopic applications since they remove the need for arduous scanning or several lasers and allow simultaneous use of multiple absorption features thus increasing the confidence level of detection. In addition, sources capable of producing ultrashort and intense mid-IR radiation are gaining relevance in attoscience and strong-field physics due to wavelength scaling of re-collision based processes. In this paper we review the state-of-the-art in sources of coherent, pulsed mid-IR radiation. First we discuss semi-conductor based sources which are compact and turnkey, but typically do not yield short pulse duration. Mid-IR laser gain material based approaches will be discussed, either for direct broadband mid-IR lasers or as narrowband pump lasers for parametric amplification in nonlinear crystals. The main part will focus on mid-IR generation and amplification based on parametric frequency conversion, enabling highest mid-IR peak power pulses. Lastly we close with an overview of nonlinear post-compression techniques, for decreasing pulse duration to the sub-2-optical-cycle regime.

show abstract

Mid-infrared supercontinuum generation in chalcogenides

Cited by 169 publications

References 162 publications

Ultrafast supercontinuum generation in bulk condensed media

Ultrafast supercontinuum generation in bulk condensed media

Nonlinear optical interactions in silicon waveguides

Ultrashort pulse generation in the mid-IR

Contact Info

Product

Resources

About