Compact silicon multimode waveguide spectrometer with enhanced bandwidth
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/srep43454
Abstract: Compact, broadband, and high-resolution spectrometers are appealing for sensing applications, but difficult to fabricate. Here we show using calibration data a spectrometer based on a multimode waveguide with 2 GHz resolution, 250 GHz bandwidth, and a 1.6 mm × 2.1 mm… read more here.
Keywords: compact silicon; number; silicon multimode; spectrometer ... See more keywords
Compact Silicon Photonic Grating Coupler With Dual-Taper Partial Overlay Spot-Size Converter
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2017.2676340
Abstract: A compact silicon photonic grating coupler enabling fiber-to-chip light coupling at a minimized footprint is proposed. The proposed coupler, which is partially overlaid at the tapered region, downsizes the effective length of the spot-size converter… read more here.
Keywords: compact silicon; photonic grating; grating coupler; coupler ... See more keywords
Compact silicon-based on-chip wavelength triplexer using directional couplers with double bridged subwavelength gratings.
Sign Up to like & getrecommendations! Published in 2021 at "Applied optics"
DOI: 10.1364/ao.439312
Abstract: A compact silicon on-chip wavelength triplexer engineered by double bridged subwavelength gratings (BSWGs) is proposed based on cascaded symmetric directional couplers (SDCs). The SDC consists of a pair of symmetric and identical BSWGs with another… read more here.
Keywords: bridged subwavelength; wavelength; wavelength triplexer; compact silicon ... See more keywords
Electromagnetically induced transparency and absorption in a compact silicon ring-bus-ring-bus system.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.014368
Abstract: We have theoretically and experimentally demonstrated electromagnetically induced transparency (EIT) and electromagnetically induced absorption (EIA) phenomena in a compact silicon ring-bus-ring-bus (RBRB) system. The two ring resonators in our RBRB system are both directly coupled… read more here.
Keywords: ring bus; compact silicon; system; induced transparency ... See more keywords
Compact silicon TE-pass polarizer using adiabatically-bent fully-etched waveguides.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.031850
Abstract: A high-performance integrated silicon TE-pass polarizer is proposed and demonstrated. The polarizer uses a series of adiabatic waveguide bends that yield high extinction ratio for the TM polarization and low insertion loss for the TE… read more here.
Keywords: polarizer; compact silicon; pass polarizer; silicon pass ... See more keywords
Compact silicon nitride interferometers.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.485086
Abstract: We demonstrate a compact silicon nitride interferometer which uses waveguides with the same length and different effective indices instead of similar effective indices and different lengths. In such structures there is no need to have… read more here.
Keywords: silicon nitride; nitride interferometers; compact silicon;
Ultra-compact silicon mode (de)multiplexer based on directional couplers with subwavelength sidewall corrugations.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.449493
Abstract: Asymmetrical directional couplers aided with subwavelength sidewall corrugations are used to realize ultra-compact silicon mode (de)multiplexers at C-band. Three mode (de)multiplexers with ultra-short coupling lengths of 5.6/6.5/7.7 μm are designed to enable low-loss mode conversions… read more here.
Keywords: ultra compact; subwavelength sidewall; sidewall corrugations; directional couplers ... See more keywords