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Harmonic Generation in GaP/Si and GaP/AlP Superlattice-Based Waveguides

We present a theoretical investigation, based on the tight-binding Hamiltonian, of efficient second harmonic generation (SHG) in the lattice-matched N-doped (GaP)N/(Si2)M short-period superlattice integrated in a strip waveguide in the silicon-on-insulator platform. The χ(2)zzz spectrum has been simulated as a function of the number of the monolayers for the “non-relaxed” heterointerfaces. For TM pumps at 5.05 μm a χ(2)zzz value of 1.25×10 4 pm/V has been calculated for the (GaP)1/(Si2)2 superlattice giving a maximum conversion efficiency around 1.14%/W, where the waveguide coherence length was 3.37 μm and the waveguide width was 2 μm. Moreover the (GaP)3/(AlP)3 superlattice is proposed for SHG with surface incidence, operating in the mid infrared with χ(2)zzz value of 1.8×10 4 pm/V. Finally, the χ(2)zzz spectrum for difference frequency generation is reported for (GaP)5/(Si2)1 and (GaP)4/(Si2)2 .

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Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.40 No.16 August 15 2022

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 5646-5653

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

OPTICAL WAVEGUIDES
NONLINEAR OPTICAL DEVICES
SECOND HARMONIC GENERATION
SOI TECHNOLOGY
SUPERLATTICE

Info Detail Spesifik

DOI: 10.1109/JLT.2022.3177848

Pernyataan Tanggungjawab

Francesco De Leonardis, Richard A. Soref

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