Tunable Filters Based on Cascaded Long-Period Polymer Waveguide Gratings
| Title: | Tunable Filters Based on Cascaded Long-Period Polymer Waveguide Gratings |
|---|---|
| Authors: | Xin Shi, Rui Cao, Lingfang Wang |
| Source: | Photonic Sensors, Vol 12, Iss 4, Pp 1-6 (2022) |
| Publisher Information: | SpringerOpen, 2022. |
| Publication Year: | 2022 |
| Collection: | LCC:Applied optics. Photonics |
| Subject Terms: | Long-period waveguide grating, optical waveguide, mode coupling, filter, Applied optics. Photonics, TA1501-1820 |
| More Details: | Abstract Long-period waveguide grating based filters have attracted attention due to their flexible fabrication, a variety of materials and structures, low back reflection, low insertion loss, and excellent performance in the tuning range and temperature sensitivity. To our knowledge, for the first time, a two-segment polymer long-period waveguide grating was cascaded to implement a filter with a narrower bandwidth. Experimental results showed that the device had a maximum extinction ratio of 24 dB at 1 577 nm, and the 12 dB bandwidth was 10 nm. The temperature sensitivity of the fabricated device was 1.79 nm/°C. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1674-9251 2190-7439 |
| Relation: | https://doaj.org/toc/1674-9251; https://doaj.org/toc/2190-7439 |
| DOI: | 10.1007/s13320-022-0659-4 |
| Access URL: | https://doaj.org/article/07104a9ddb9f43da85ee1472f1e3f80e |
| Accession Number: | edsdoj.07104a9ddb9f43da85ee1472f1e3f80e |
| Database: | Directory of Open Access Journals |
| ISSN: | 16749251 21907439 |
|---|---|
| DOI: | 10.1007/s13320-022-0659-4 |
| Published in: | Photonic Sensors |
| Language: | English |