UV Inscription and Pressure Induced Long-Period Gratings through 3D Printed Amplitude Masks
In this work, we demonstrate for the first time the capability to inscribe long-period gratings (LPGs) with UV radiation using simple and low cost amplitude masks fabricated with a consumer grade 3D printer. The spectrum obtained for a grating with 690 µm period and 38 mm length presented good quali...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/6/1977 |
| _version_ | 1797541766552879104 |
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| author | Ricardo Oliveira Liliana M. Sousa Ana M. Rocha Rogério Nogueira Lúcia Bilro |
| author_facet | Ricardo Oliveira Liliana M. Sousa Ana M. Rocha Rogério Nogueira Lúcia Bilro |
| author_sort | Ricardo Oliveira |
| collection | DOAJ |
| description | In this work, we demonstrate for the first time the capability to inscribe long-period gratings (LPGs) with UV radiation using simple and low cost amplitude masks fabricated with a consumer grade 3D printer. The spectrum obtained for a grating with 690 µm period and 38 mm length presented good quality, showing sharp resonances (i.e., 3 dB bandwidth < 3 nm), low out-of-band loss (~0.2 dB), and dip losses up to 18 dB. Furthermore, the capability to select the resonance wavelength has been demonstrated using different amplitude mask periods. The customization of the masks makes it possible to fabricate gratings with complex structures. Additionally, the simplicity in 3D printing an amplitude mask solves the problem of the lack of amplitude masks on the market and avoids the use of high resolution motorized stages, as is the case of the point-by-point technique. Finally, the 3D printed masks were also used to induce LPGs using the mechanical pressing method. Due to the better resolution of these masks compared to ones described on the state of the art, we were able to induce gratings with higher quality, such as low out-of-band loss (0.6 dB), reduced spectral ripples, and narrow bandwidths (~3 nm). |
| first_indexed | 2024-03-10T13:20:23Z |
| format | Article |
| id | doaj.art-7d28740100be4fac899bf8eae65cd3f4 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T13:20:23Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7d28740100be4fac899bf8eae65cd3f42023-11-21T10:04:08ZengMDPI AGSensors1424-82202021-03-01216197710.3390/s21061977UV Inscription and Pressure Induced Long-Period Gratings through 3D Printed Amplitude MasksRicardo Oliveira0Liliana M. Sousa1Ana M. Rocha2Rogério Nogueira3Lúcia Bilro4Instituto de Telecomunicações, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, PortugalInstituto de Telecomunicações, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, PortugalInstituto de Telecomunicações, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, PortugalInstituto de Telecomunicações, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, PortugalInstituto de Telecomunicações, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, PortugalIn this work, we demonstrate for the first time the capability to inscribe long-period gratings (LPGs) with UV radiation using simple and low cost amplitude masks fabricated with a consumer grade 3D printer. The spectrum obtained for a grating with 690 µm period and 38 mm length presented good quality, showing sharp resonances (i.e., 3 dB bandwidth < 3 nm), low out-of-band loss (~0.2 dB), and dip losses up to 18 dB. Furthermore, the capability to select the resonance wavelength has been demonstrated using different amplitude mask periods. The customization of the masks makes it possible to fabricate gratings with complex structures. Additionally, the simplicity in 3D printing an amplitude mask solves the problem of the lack of amplitude masks on the market and avoids the use of high resolution motorized stages, as is the case of the point-by-point technique. Finally, the 3D printed masks were also used to induce LPGs using the mechanical pressing method. Due to the better resolution of these masks compared to ones described on the state of the art, we were able to induce gratings with higher quality, such as low out-of-band loss (0.6 dB), reduced spectral ripples, and narrow bandwidths (~3 nm).https://www.mdpi.com/1424-8220/21/6/1977long-period gratingadditive manufacturingUV long-period gratingpressure induced long-period grating |
| spellingShingle | Ricardo Oliveira Liliana M. Sousa Ana M. Rocha Rogério Nogueira Lúcia Bilro UV Inscription and Pressure Induced Long-Period Gratings through 3D Printed Amplitude Masks Sensors long-period grating additive manufacturing UV long-period grating pressure induced long-period grating |
| title | UV Inscription and Pressure Induced Long-Period Gratings through 3D Printed Amplitude Masks |
| title_full | UV Inscription and Pressure Induced Long-Period Gratings through 3D Printed Amplitude Masks |
| title_fullStr | UV Inscription and Pressure Induced Long-Period Gratings through 3D Printed Amplitude Masks |
| title_full_unstemmed | UV Inscription and Pressure Induced Long-Period Gratings through 3D Printed Amplitude Masks |
| title_short | UV Inscription and Pressure Induced Long-Period Gratings through 3D Printed Amplitude Masks |
| title_sort | uv inscription and pressure induced long period gratings through 3d printed amplitude masks |
| topic | long-period grating additive manufacturing UV long-period grating pressure induced long-period grating |
| url | https://www.mdpi.com/1424-8220/21/6/1977 |
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