Ultra-broadband optical parametric generation and simultaneous RGB generation in periodically poled lithium niobate

Lim, Hwan Hong; Prakash, Om; Kim, Byeong‐Joo; Pandiyan, Krishnamoorthy; Cha, Myoungsik; Rhee, Bum Ku

doi:10.1364/oe.15.018294

Cited by 20 publications

(7 citation statements)

References 8 publications

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“…It has generated interest over the years mainly due to its use in nonlinear optical frequency conversion, electro-optical modulation, surface acoustic wave devices, holographic data storage, optical waveguides, and integrated optical applications [11][12][13][14]. In more recent times ferroelectric domain engineering of LN crystal has paved a new pathway for developing periodically poled LiNbO 3 (PPLN) for fabricating optical parametric oscillators (OPO) to generate tunable lasers in the visible and mid-infrared radiation [11,15,16], tandem-poled lithium niobate crystals for the broadband green light source [17], laser projectors or display devices [18], and photonic band gap materials [19]. Further, there is a considerable interest in micro-structuring of LN crystals for their use in the micro-electro-mechanical system (MEMS) [20].…”

Section: Introductionmentioning

confidence: 99%

Control of Intrinsic Defects in Lithium Niobate Single Crystal for Optoelectronic Applications

et al. 2017

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A single crystal of lithium niobate is an important optoelectronic material. It can be grown from direct melt only in a lithium deficient non-stoichiometric form as its stoichiometric composition exhibits incongruent melting. As a result it contains a number of intrinsic point defects such as Li-vacancies, Nb antisites, oxygen vacancies, as well as different types of polarons and bipolarons. All these defects adversely influence its optical and ferroelectric properties and pose a deterrent to the effective use of this material. Hence, controlling the defects in lithium niobate has been an exciting topic of research and development over the years. In this article we discuss the different methods of controlling the intrinsic defects in lithium niobate and a comparison of the effect of these methods on the crystalline quality, stoichiometry, optical absorption in the UV-vis region, electronic band-gap, and refractive index.

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Section: Introductionmentioning

confidence: 99%

Control of Intrinsic Defects in Lithium Niobate Single Crystal for Optoelectronic Applications

et al. 2017

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“…It is much broader than in the case of any degenerate phase matching and can cover more than 100 THz [63]. This fact is used in works on parametric generation and amplification [64,65,66].…”

Section: Pdc At Zero Gvdmentioning

confidence: 99%

Indefinite-Mean Pareto Photon Distribution from Amplified Quantum Noise

et al. 2019

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Extreme events appear in many physics phenomena, whenever the probability distribution has a 'heavy tail', differing very much from the equilibrium one. Most unusual are the cases of powerlaw (Pareto) probability distributions. Among their many manifestations in physics, from 'rogue waves' in the ocean to Lévy flights in random walks, Pareto dependences can follow very different power laws. For some outstanding cases the power exponents are less than 2, leading to indefinite mean values, let alone higher moments. Here we present the first evidence of indefinite-mean Pareto distribution of photon numbers at the output of nonlinear effects pumped by parametrically amplified vacuum noise, known as bright squeezed vacuum (BSV). We observe a Pareto distribution with power exponent 1.31 when BSV is used as a pump for supercontinuum generation, and other heavy-tailed distributions (however with definite moments) when it pumps optical harmonics generation. Unlike in other fields, we can flexibly control the Pareto exponent by changing the experimental parameters. This extremely fluctuating light is interesting for ghost imaging and quantum thermodynamics as a resource to produce more efficiently non-equilibrium states by single-photon subtraction, the latter we demonstrate experimentally.

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“…Several methods have been proposed to resolve these issues and increase the TWM efficiency over a broad bandwidth, including quasi-phase-matching with chirped gratings [1], non-collinear angularly dispersed geometry [2], or group-velocity matching techniques [3][4][5]. More complex frequency conversion schemes deploy multiple crystals.…”

Section: Introductionmentioning

confidence: 99%

Broadband and efficient adiabatic three-wave-mixing in a temperature-controlled bulk crystal

Markov¹,

Mazhorova²,

Breitenborn³

et al. 2018

Opt. Express

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Nonlinear interactions are commonly used to access to wavelengths not covered by standard laser systems. In particular, optical parametric amplification (OPA) is a powerful technique to produce broadly tunable light. However, common implementations of OPA suffer from a well-known trade-off, either achieving high efficiency for narrow spectra or inefficient conversion over a broad bandwidth. This shortcoming can be addressed using adiabatic processes. Here, we demonstrate a novel technique towards this direction, based on a temperature-controlled phase mismatch between the interacting waves. Using this approach, we demonstrate, by tailoring the temperature profile, an increase in conversion efficiency by 21%, reaching a maximum of 57%, while simultaneously expanding the bandwidth to over 300 nm. Our technique can readily enhance the performances of current OPA systems.

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Ultra-broadband optical parametric generation and simultaneous RGB generation in periodically poled lithium niobate

Cited by 20 publications

References 8 publications

Control of Intrinsic Defects in Lithium Niobate Single Crystal for Optoelectronic Applications

Control of Intrinsic Defects in Lithium Niobate Single Crystal for Optoelectronic Applications

Indefinite-Mean Pareto Photon Distribution from Amplified Quantum Noise

Broadband and efficient adiabatic three-wave-mixing in a temperature-controlled bulk crystal

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