Features of APE waveguides in different Er:LiNbO3 and (Er+Yb):LiNbO3 cuts: electrooptical coefficient r33

Nekvindová, Pavla; Červená, J.; Čapek, Pavel; Macková, Anna; Peřina, Vratislav; Schröfel, Josef; Špirková, Jarmila

doi:10.1016/s0925-3467(03)00088-0

Cited by 11 publications

(6 citation statements)

References 13 publications

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“…where I is the ratio between the beam and the background intensities. It is worth mentioning that the erbium doping was found to influence both the electro-optic and the photovoltaic effects: the electro-optic coefficient r 33 decreases when increasing the erbium concentration [9]. This was mainly related to the modification of the crystallographic elementary cell [19], whose dimensions decrease as well.…”

Section: Discussionmentioning

confidence: 98%

“…Many studies [5][6][7] have been carried out on the optical and spectroscopic properties of erbium as it is incorporated in host materials, but only recently has a systematic analysis of its influence on the photorefractive response been performed [8][9][10]. In these papers it was demonstrated that volume incorporation of erbium in lithium niobate crystals indeed modifies the electro-optic as well as the photovoltaic coefficients.…”

Section: Introductionmentioning

confidence: 99%

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Self-confined beams in erbium-doped lithium niobate

Alonzo

Pettazzi

Bazzan

et al. 2009

J. Opt.

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We experimentally investigate the formation of self-confined beams in lithium niobate crystals which are doped in the bulk with erbium. Samples have been grown by the Czochralski method with erbium nominal concentrations varying in the range 0.0-0.7 mol% in the melt. The speeds of beam confinement depend on the applied bias and on the beam intensity, as expected, but on the doping level as well. The erbium incorporation influences both the electro-optic coefficient and the photovoltaic field. A very general dependence of the confined beam waist on the refractive index change was experimentally derived, valid now for every lithium niobate crystal, independent on its growing procedure or doping.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Self-confined beams in erbium-doped lithium niobate

Alonzo

Pettazzi

Bazzan

et al. 2009

J. Opt.

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“…The laser emission of Er 3+ ions at approximately 1.5 μm has demonstrated numerous advantages in the application of eye-safe laser , and optical communication. , The optical absorption of Er doped crystals at approximately 980 nm, corresponding to the energy transition from the ground state 4 I 15/2 to the excited state 4 I 11/2 , makes them suitable to be pumped for laser with 980 nm light. However, Er 3+ ions possess a low absorption cross section at approximately 980 nm, which limits the pump efficiency.…”

Section: Introductionmentioning

confidence: 99%

Yb Sensitized Near-Stoichiometric Er:LiNbO₃ Single Crystal: A Matrix for Optical Communication and Upconversion Emission

Wang

Kang

Liang

et al. 2018

Crystal Growth & Design

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Ytterbium and erbium codoped crystals have attracted considerable interest in the application of eye-safe laser, upconversion laser, and low-loss optical communication. Despite the lithium niobate (LiNbO3, LN) single crystal has been accepted as an ideal crystal matrix for Yb3+ and Er3+ ions possessing significant application potential in self-upconversion laser, the Yb and Er codoped near-stoichiometric LN (NSLN) crystal has rarely been studied. This is due to the difficulty of the NSLN crystal growth compared with that of the congruent LN (CLN). In this paper, an Yb, Er codoped near-stoichiometric LN (Yb, Er:NSLN) crystal was grown by the Czochrolski method for the first time. Spectra studies showed the constrained peak splitting at 378, 526, and 650 nm of the Yb, Er:NSLN crystal compared with Yb, Er:CLN crystal. It was attributed to the low concentration of intrinsic defects which constrained the Stark-split of the three energy levels of 4G11/2, 2H11/2, and 4F9/2 energy states. Some spectral changes are verified induced by the stoichiometric composition in the polarized emission spectra. The Yb, Er:NSLN crystal has high potential in upconversion laser application.

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“…Recently, erbium doped LiNbO 3 (Er:LN) crystals have been used to various waveguide lasers emitting at 1555 nm wavelength of interest for optical communication systems [3][4][5][6]. Er:LN combines the unique lasing properties of Er 3+ ion along with the excellent electro-optic, acousto-optic, and nonlinear optical properties of LiNbO 3 [7,8].…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic analysis of erbium doped LiNbO3: Effect of dopant concentration, vapor transport equilibration and poling

Bhatt

Bhaumik

Ganesamoorthy

et al. 2016

Journal of Alloys and Compounds

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Features of APE waveguides in different Er:LiNbO3 and (Er+Yb):LiNbO3 cuts: electrooptical coefficient r33

Cited by 11 publications

References 13 publications

Self-confined beams in erbium-doped lithium niobate

Self-confined beams in erbium-doped lithium niobate

Yb Sensitized Near-Stoichiometric Er:LiNbO₃ Single Crystal: A Matrix for Optical Communication and Upconversion Emission

Spectroscopic analysis of erbium doped LiNbO3: Effect of dopant concentration, vapor transport equilibration and poling

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Features of APE waveguides in different Er:LiNbO3 and (Er+Yb):LiNbO3 cuts: electrooptical coefficient r33

Cited by 11 publications

References 13 publications

Self-confined beams in erbium-doped lithium niobate

Self-confined beams in erbium-doped lithium niobate

Yb Sensitized Near-Stoichiometric Er:LiNbO3 Single Crystal: A Matrix for Optical Communication and Upconversion Emission

Spectroscopic analysis of erbium doped LiNbO3: Effect of dopant concentration, vapor transport equilibration and poling

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Yb Sensitized Near-Stoichiometric Er:LiNbO₃ Single Crystal: A Matrix for Optical Communication and Upconversion Emission