Fiber-integrated phase-change reconfigurable optical attenuator
We report on the experimental demonstration of an optical-fiber-integrated, nonvolatile transmission switching device. The operating mechanism exploits a cavity resonance spectral shift associated with an induced change in the refractive index of a high-index thin film on the polished side facet of...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/143921 |
| _version_ | 1811690230316531712 |
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| author | Martins, Tiago Gholipour, Behrad Piccinotti, Davide MacDonald, Kevin F. Peacock, Anna C. Frazão, Orlando Zheludev, Nikolay I. |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Martins, Tiago Gholipour, Behrad Piccinotti, Davide MacDonald, Kevin F. Peacock, Anna C. Frazão, Orlando Zheludev, Nikolay I. |
| author_sort | Martins, Tiago |
| collection | NTU |
| description | We report on the experimental demonstration of an optical-fiber-integrated, nonvolatile transmission switching device. The operating mechanism exploits a cavity resonance spectral shift associated with an induced change in the refractive index of a high-index thin film on the polished side facet of the fiber. In the present case, a thermally induced amorphous-crystalline structural transition in a 500 nm layer of germanium antimony telluride at a distance of 500 nm from the core-cladding interface of an SMF-28 single-mode fiber delivers resonant transmission contrast >0.5 dB/mm at 1315 nm. Contrast is a function of active layer proximity to the core, while operating wavelength is determined by layer thickness—varying thickness by a few tens of nanometers can provide for tuning over the entire near-infrared telecoms spectral range. |
| first_indexed | 2024-10-01T06:00:41Z |
| format | Journal Article |
| id | ntu-10356/143921 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:00:41Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1439212023-02-28T19:52:26Z Fiber-integrated phase-change reconfigurable optical attenuator Martins, Tiago Gholipour, Behrad Piccinotti, Davide MacDonald, Kevin F. Peacock, Anna C. Frazão, Orlando Zheludev, Nikolay I. School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies The Photonics Institute Science::Physics Fiber-integrated Optical Attenuator We report on the experimental demonstration of an optical-fiber-integrated, nonvolatile transmission switching device. The operating mechanism exploits a cavity resonance spectral shift associated with an induced change in the refractive index of a high-index thin film on the polished side facet of the fiber. In the present case, a thermally induced amorphous-crystalline structural transition in a 500 nm layer of germanium antimony telluride at a distance of 500 nm from the core-cladding interface of an SMF-28 single-mode fiber delivers resonant transmission contrast >0.5 dB/mm at 1315 nm. Contrast is a function of active layer proximity to the core, while operating wavelength is determined by layer thickness—varying thickness by a few tens of nanometers can provide for tuning over the entire near-infrared telecoms spectral range. Ministry of Education (MOE) Published version 2020-10-01T03:28:47Z 2020-10-01T03:28:47Z 2019 Journal Article Martins, T., Gholipour, B., Piccinotti, D., MacDonald, K. F., Peacock, A. C., Frazão, O., & Zheludev, N. I. (2019). Fiber-integrated phase-change reconfigurable optical attenuator. APL Photonics, 4(11), 111301-. doi:10.1063/1.5116000 2378-0967 https://hdl.handle.net/10356/143921 10.1063/1.5116000 11 4 en APL Photonics © 2019 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
| spellingShingle | Science::Physics Fiber-integrated Optical Attenuator Martins, Tiago Gholipour, Behrad Piccinotti, Davide MacDonald, Kevin F. Peacock, Anna C. Frazão, Orlando Zheludev, Nikolay I. Fiber-integrated phase-change reconfigurable optical attenuator |
| title | Fiber-integrated phase-change reconfigurable optical attenuator |
| title_full | Fiber-integrated phase-change reconfigurable optical attenuator |
| title_fullStr | Fiber-integrated phase-change reconfigurable optical attenuator |
| title_full_unstemmed | Fiber-integrated phase-change reconfigurable optical attenuator |
| title_short | Fiber-integrated phase-change reconfigurable optical attenuator |
| title_sort | fiber integrated phase change reconfigurable optical attenuator |
| topic | Science::Physics Fiber-integrated Optical Attenuator |
| url | https://hdl.handle.net/10356/143921 |
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