scholarly journals Efficient calculation of higher-order optical waveguide dispersion

2010 ◽  
Vol 18 (19) ◽  
pp. 19522 ◽  
Author(s):  
J. A. Mores, Jr. ◽  
G. N. Malheiros-Silveira ◽  
H. L. Fragnito ◽  
H. E. Hernández-Figueroa
Keyword(s):  
Optical Waveguide ◽  
Higher Order ◽  
Waveguide Dispersion ◽  
Efficient Calculation

Higher-order Bragg diffraction by a periodic structure in a planar optical waveguide

1987 ◽  
Vol 17 (8) ◽  
pp. 1023-1027
Author(s):  
M Miler ◽  
V N Morozov ◽  
V A Pletnev ◽  
A N Putilin ◽  
A S Semenov ◽  
...  
Keyword(s):  
Optical Waveguide ◽  
Periodic Structure ◽  
Higher Order ◽  
Bragg Diffraction ◽  
Planar Optical Waveguide

Properties of compact bright pulse in long optical waveguide: Higher-order effects

Optik ◽  
2017 ◽  
Vol 130 ◽  
pp. 1-10 ◽  
Author(s):  
Chancelor Pokam Nguewawe ◽  
David Yemélé
Keyword(s):  
Optical Waveguide ◽  
Higher Order ◽  
Order Effects ◽  
Higher Order Effects

scholarly journals Thin-Film Lithium Niobate Based Acousto-Optic Modulation Working at Higher-Order TE1 Mode

Photonics ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 12
Author(s):  
Yang Yang ◽  
Yin Xu ◽  
Dongmei Huang ◽  
Feng Li ◽  
Yue Dong ◽  
...  
Keyword(s):  
Thin Film ◽  
Refractive Index ◽  
Lithium Niobate ◽  
Optical Waveguide ◽  
Mode Conversion ◽  
Refractive Index Change ◽  
Acoustic Resonator ◽  
Higher Order ◽  
Index Change ◽  
On Chip

Acousto-optic modulation (AOM) is regarded as an effective way to link multi-physical fields on-chip. We propose an on-chip AOM scheme based on the thin-film lithium niobate (TFLN) platform working at the higher-order TE1 mode, rather than the commonly used fundamental TE0 mode. Multi-physical field coupling analyses were carried out to obtain the refractive index change of the optical waveguide (>6.5×10−10 for a single phonon) induced by the enhanced acousto-optic interaction between the acoustic resonator mode and the multimode optical waveguide. By using a Mach-Zehnder interferometer (MZI) structure, the refractive index change is utilized to modulate the output spectrum of the MZI, thus achieving the AOM function. In the proposed AOM scheme, efficient mode conversion between the TE0 and TE1 mode is required in order to ensure that the AOM works at the higher-order TE1 mode in the MZI structure. Our results show that the half-wave-voltage-length product (VπL) is <0.01 V·cm, which is lower than that in some previous reports on AOM and electro-optic modulation (EOM) working at the fundamental TE0 mode (e.g., VπL > 0.04 V·cm for AOM, VπL > 1 V·cm for EOM). Finally, the proposed AOM has lower loss when compared with EOM because the electrode of the AOM can be placed far from the optical waveguide.

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