Removal of back-reflection noise at ultrathin imaging probes by the single-core illumination and wide-field detection
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-07024-y
Abstract: Thin waveguides such as graded-index lenses and fiber bundles are often used as imaging probes for high-resolution endomicroscopes. However, strong back-reflection from the end surfaces of the probes makes it difficult for them to resolve… read more here.
Keywords: detection; illumination; imaging probes; back reflection ... See more keywords
Grating Coupler With Reduced Back Reflection Using λ/4 Offset at Its Grating Sub-Teeth
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2018.2889863
Abstract: We demonstrate a grating coupler with reduced back reflection on silicon-on-insulator (SOI) platform. Each grating tooth of the grating coupler is uniformly divided into multiple sub-teeth with λ/4 offset between two adjacent sub-teeth, reducing the… read more here.
Keywords: back reflection; sub teeth; coupler; grating coupler ... See more keywords
Low loss and broadband low back-reflection interconnection between a hollow-core and standard single-mode fiber.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.460635
Abstract: We report simultaneous low coupling loss (below 0.2 dB at 1550 nm) and low back-reflection (below -60 dB in the 1200-1600 nm range) between a hollow core fiber and standard single mode optical fiber obtained through the combination of… read more here.
Keywords: back reflection; loss; hollow core; low back ... See more keywords