Design and development of low-cost room temperature electric field poling system for the fabrication of quasi-phase matching devices

Meetei, Toijam Sunder; Boomadevi, Shanmugam; Pandiyan, Krishnamoorthy

doi:10.1007/s12043-018-1616-z

Cited by 2 publications

(1 citation statement)

References 45 publications

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“…Furthermore, the proposed QPM device possesses the simplest structure which made it comparatively much easier to fabricate with less wastage than the existing available structures. Room temperature electric field poling technique can be used to realize this device [36]. In addition, the number of PR domains N is predefined to generate any…”

Section: Resultsmentioning

confidence: 99%

Multiple quasi-phase-matched second-harmonic generation in phase reversal optical superlattice structure

et al. 2019

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Domain-engineered quasi-phase-matching (QPM) devices are known for its versatility and ability to tune the nonlinear optical frequency conversion process. In this paper, a simple approach is presented to generate multiple quasi-phase-matched second-harmonic generation (SHG) in the phase reversal optical superlattice (PROS) structure. Theoretical studies are carried out by simulation based on the domain reversed lithium niobate QPM devices. The nature of the generated multiple SHG spectra is analyzed when the phase reversal (PR) domains are distributed at equal and unequal intervals along the length of the device. The distribution of phase reversal domains at equal intervals is limited to the generation of dual SHG peaks irrespective of its number. On the contrary, we could generate equal-intensity multiple SHG peaks with PR domains distribution at unequal interval. Using this scheme, five peaks QPM SHG are generated by distributing four PR domains in specific locations of the PROS QPM device. The dependency of the PR domain and its location in the PROS QPM device are analyzed to design desirable multi-wavelength converters.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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Section: Resultsmentioning

confidence: 99%

Multiple quasi-phase-matched second-harmonic generation in phase reversal optical superlattice structure

et al. 2019

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Measurement of the internal electric field in periodically poled congruent lithium niobate crystals by far-field diffraction

et al. 2021

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A simple nondestructive diffraction method is introduced to estimate the internal electric field present in the congruent lithium niobate crystal. Due to the presence of an unrelaxed internal field, the as-poled sample acts as an index grating and diffracts the incident light beam. By analyzing the diffraction patterns, we calculated the refractive index difference ( Δ n = 1.52 × 10 − 4 ) between the poled and the unpoled domains, and the duty cycle error of 7.9%. Using the Pockels effect, the internal field E i present in the periodically poled lithium niobate crystal is estimated to be 2.56 kV/mm.

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Design and development of low-cost room temperature electric field poling system for the fabrication of quasi-phase matching devices

Cited by 2 publications

References 45 publications

Multiple quasi-phase-matched second-harmonic generation in phase reversal optical superlattice structure

Multiple quasi-phase-matched second-harmonic generation in phase reversal optical superlattice structure

Measurement of the internal electric field in periodically poled congruent lithium niobate crystals by far-field diffraction

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