Academic Journal
Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals
| العنوان: | Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals |
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| المؤلفون: | Andrius Zukauskas, Anne-Lise Viotti, Charlotte Liljestrand, Valdas Pasiskevicius, Carlota Canalias |
| المصدر: | Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017) |
| بيانات النشر: | Nature Portfolio, 2017. |
| سنة النشر: | 2017 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | Abstract Mirrorless optical parametric oscillators (MOPOs) are very attractive parametric devices that rely on the nonlinear interaction of counter-propagating photons to inherently establish distributed feedback, without the use of external mirrors or surface coatings. These devices offer unique spectral and coherence properties that will benefit a large variety of applications ranging from spectroscopy to quantum communications. The major obstacle in exploiting their full potential is ascribed to the difficulty in engineering a nonlinear material in which the generation of counter-propagating waves can be phase matched. Here we present a reliable and consistent technique for fabrication of highly-efficient sub-micrometer periodically poled Rb-doped KTiOPO4. We experimentally demonstrate the first cascaded counter-propagating interactions in which the generated forward signal serves as a pump for a secondary MOPO process, reaching pump depletion larger than 60%. The cascaded process exemplifies the high efficiency of our nonlinear photonic structures. Our domain-engineering technique paves the way to realize counter-propagating schemes and devices that have been deemed unfeasible until now. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-017-07016-y |
| URL الوصول: | https://doaj.org/article/0953cc77f89a4f5b9029439d4dbf5a39 |
| رقم الانضمام: | edsdoj.0953cc77f89a4f5b9029439d4dbf5a39 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20452322 |
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| DOI: | 10.1038/s41598-017-07016-y |