Yoshiki Kamiura, Taiga Kurisawa, C. Fujikawa, O. Mikami
{"title":"Polymer Spot Size Expanders for High Efficiency Optical Coupling in Optical Interconnection","authors":"Yoshiki Kamiura, Taiga Kurisawa, C. Fujikawa, O. Mikami","doi":"10.4302/plp.v14i3.1163","DOIUrl":null,"url":null,"abstract":"Improving the low coupling efficiency due to spot size differences remains a challenge for achieving high bit-rate optical interconnections. To solve this problem, the test spot size expander device is fabricated using UV-curable resin on the end face of a fiber with a high numerical aperture. The expanded spot size of 9.38 μm from the original 3.2 μm at a wavelength of 1.55 μm and the maximum coupling efficiency with a single mode fiber of –1.19 dB are achieved. In addition, the –3 dB tolerance of the coupling efficiency along the vertical optical axis was ±4.1 µm.","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.5000,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Photonics Letters of Poland","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4302/plp.v14i3.1163","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 1
Abstract
Improving the low coupling efficiency due to spot size differences remains a challenge for achieving high bit-rate optical interconnections. To solve this problem, the test spot size expander device is fabricated using UV-curable resin on the end face of a fiber with a high numerical aperture. The expanded spot size of 9.38 μm from the original 3.2 μm at a wavelength of 1.55 μm and the maximum coupling efficiency with a single mode fiber of –1.19 dB are achieved. In addition, the –3 dB tolerance of the coupling efficiency along the vertical optical axis was ±4.1 µm.
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