Femtosecond laser written channel waveguides in tellurite glass

Nandi, P.; Jose, Gin; Jayakrishnan, C.; Debbarma, Sukanta; Chalapathi, K.; Alti, Kamlesh; Dharmadhikari, A. K.; Dharmadhikari, J. A.; Mathur, D.

doi:10.1364/oe.14.012145

Cited by 106 publications

(47 citation statements)

References 10 publications

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“…BaF 2 has also recently found utility as a cross-polarized wave generator [21]. Similarly, the experiments that we report on BK7 glass and fused silica have direct relevance to recent progress achieved in femtosecond laser writing of waveguides embedded within these materials [23,24].…”

Section: Introductionsupporting

confidence: 70%

Third-order nonlinear optical response in transparent solids using ultrashort laser pulses

et al. 2012

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The third-order optical nonlinearity, χ (3) , is measured in transparent glasses (BK7 and fused silica) and crystals (BaF 2 and quartz) using 36-fs, 800-nm laser pulses and the optical Kerr gate (OKE) technique; values are found to lie in the range 1.3-1.7 × 10 −14 esu, in accordance with theoretical estimates. We probe the purely electronic response to the incident ultrashort laser pulse in fused silica and BK7 glass. In BaF 2 and quartz, apart from the electronic response we also observe contribution from the nuclear response to the incident ultrashort pulses. We observe oscillatory modulations that persist for ∼400 fs. The response of the media (glasses and crystals) to ultrashort pulses is also measured using two-beam self-diffraction; the diffraction efficiency in the first-order grating is measured to be in the range of 0.06-0.13 %. Third harmonic generation due to self-phase matching in the transient grating geometry is measured as a function of temporal delay between the two incident ultrashort pulses, yielding the autocorrelation signal.

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Section: Introductionsupporting

confidence: 70%

Third-order nonlinear optical response in transparent solids using ultrashort laser pulses

et al. 2012

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“…These glasses are well known for their high density, high refractive index, high dielectric constants, a wide band infrared transmittance and large third order non-linear optical susceptibility and numerous devices including optical amplifiers, planar waveguides and nano wires have been fabricated using tellurite glasses [1][2][3][4][5][6] . A variety of studies on mechanical, electrical and optical properties of tellurium based glasses with different modifiers are present in literature [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Effect of F ions on physical and optical properties of fluorine substituted zinc arsenic tellurite glasses

Ahmmad

kondaul

Rahman

2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The effect of substitution of fluoride ions for oxide ions on the physical and optical properties of glass system (20-x) ZnO-xZnF 2 -40As 2 O 3 -40TeO 2 where x = 0, 4, 8,12,16,20 mole % were investigated. The samples prepared by melt quenching method under controlled condition. The amorphous nature of these glasses was checked by X-ray diffraction technique. The density was measured according to Archimedes principle. The room temperature absorption spectra of all glass samples were determined using UV-Vis-NIR spectrometer. The thermal behaviour, glass transition temperature and stability of glass samples were studied by a differential scanning calorimetric (DSC). The density reduction of present glasses with ZnF 2 concentrations may be due to the low density of ZnF 2 compared with that of ZnO. Breaking the oxide network, the cross linking degree of the glass former could be reduced which results in decrease of both T g and T x . In the present glass system when F ions replaced by oxygen ions UV-Vis absorption cut-off wavelength decreases. This resulted form the conversion of structural unit in the glass from TeO 4 to Te(O,F) 4 and then to Te(O, F) 3 .

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“…Femtosecond laser machining has enabled the manufacture of a wide variety of integrated, threedimensional, multi-functional devices all on a single substrate [1][2][3][4][5][6][7][8][9][10][11][12]. While the benefits of this technology are many, there are still significant technological obstacles that must be overcome to reliably and predictably produce these devices.…”

Section: Introductionmentioning

confidence: 99%

Visualization of femtosecond laser-induced stress anisotropy in amorphous and crystalline materials

McMillen

Chen

Bellouard

2015

MATEC Web of Conferences

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Abstract. In recent years, micro manufacturing with femtosecond lasers has received considerable attention as an efficient technique for producing three-dimensional devices, combining multiple functionalities in a single monolithic substrate. In this manufacturing process, stress-anisotropy resulting from non-ablative laser exposure can have both positive and negative effects on the process out-come. In this work, we present a simple method for visualizing stress anisotropy, combining highly symmetric laser-written patterns with polarization microscopy, as a tool for identifying the various anisotropic contributions to the laser fabrication process.

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Femtosecond laser written channel waveguides in tellurite glass

Cited by 106 publications

References 10 publications

Third-order nonlinear optical response in transparent solids using ultrashort laser pulses

Third-order nonlinear optical response in transparent solids using ultrashort laser pulses

Effect of F ions on physical and optical properties of fluorine substituted zinc arsenic tellurite glasses

Visualization of femtosecond laser-induced stress anisotropy in amorphous and crystalline materials

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