1. Dual-valley transmission spectrum based on periodically poled lithium niobate with a structure defect
- Author
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Guang-hao Shao, Yan-qing Lu, Jing Song, and Guo-xin Cui
- Subjects
Imagination ,Materials science ,business.industry ,media_common.quotation_subject ,Lithium niobate ,Optical polarization ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Polarization (waves) ,01 natural sciences ,010309 optics ,Wavelength ,chemistry.chemical_compound ,Optics ,chemistry ,Electric field ,0103 physical sciences ,0210 nano-technology ,business ,Optical filter ,media_common - Abstract
We observe the symmetrical dual-valley spectrum in periodically poled lithium niobate (PPLN) with a defect in the middle employing electro-optic effect. When the external electric fields are applied, light satisfying phase-matching condition (λ 0 ) will undergo polarization rotation and then turn back. However, the polarization states of wavelength at λ 0 ±Δλ will be changed at the end of the sample due to phase mismatching. A dual-valley transmission spectrum is thus obtained. Moreover, the depth of the valley could be tailored with different electric fields on the y-surface of the sample.
- Published
- 2016
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