Zobrazeno 1 - 10
of 448
pro vyhledávání: '"Silicon nanophotonics"'
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 5, Pp 1-10 (2022)
Single-photon avalanche diodes (SPADs) are widely used for weak light detection due to their high gain and high sensitivity. Unfortunately, SPAD devices have random telegraph signal (RTS) noise during the avalanche transition phase, which makes circu
Externí odkaz:
https://doaj.org/article/c90dafeca34d45199857e5c3b163355b
Autor:
Yisu Yang, Kaixiang Gao, Huiyuan Zhang, Huaibing Liu, Xinyuan Lu, Xiaomin Ren, Yongqing Huang
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 2, Pp 1-6 (2022)
We propose a bi-layer 5-tip edge coupler in a multilayer silicon nitride-on-silicon (SiN-on-Si) waveguide platform. The coupler is used for the integration between a monolithic 1550 nm laser and a single-mode SiN waveguide. The simulated coupling eff
Externí odkaz:
https://doaj.org/article/f9d91dffa6144032b38f4e1b02ca9f6c
Autor:
Jinsong Zhang, Luhua Xu, Deng Mao, Zhenping Xing, Yannick DrMello, Maxime Jacques, Yun Wang, Stephane Lessard, David V. Plant
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 2, Pp 1-6 (2022)
We propose a 1310/1550 nm wavelength diplexer on a 220-nm silicon-on-insulator (SOI) platform. The device is based on a compact two-mode interference (TMI) coupler enabled by a subwavelength grating (SWG) slot. The ideal beat length ratio of 2:1 is a
Externí odkaz:
https://doaj.org/article/ce745a41ef164269ae02c79768a27a9f
Autor:
Guowu Zhang, Odile Liboiron-Ladouceur
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 2, Pp 1-13 (2021)
In this paper, we design and experimentally demonstrate a two-mode and three-mode mode exchanger (ME) using an inverse design method. The designed MEs provide more flexibility for mode division multiplexing (MDM) system links. The optimized designs a
Externí odkaz:
https://doaj.org/article/706943a50d0f4e9d8709df98bf96ee01
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 3, Pp 1-11 (2021)
Grating couplers (GCs) are devices for transmitting and receiving the light propagated in a waveguide in silicon photonic integrated circuits (PICs). In this study, we propose a polarization splitting GC (PSGC) for the optical antenna of light detect
Externí odkaz:
https://doaj.org/article/1f691cd63ba94751a831b6e8e35d9471
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 4, Pp 1-8 (2020)
We experimentally demonstrate excitation of orbital angular momentum states in an air-core fiber by a silicon integrated vortex beam emitter which is designed and fabricated to match the modes supported by the fiber. The coupling loss is measured to
Externí odkaz:
https://doaj.org/article/be446f9476714d678e792cdba4230ea7
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 3, Pp 1-11 (2020)
Single photon avalanche diodes (SPAD) based on avalanche effect have been widely used in the detection of extremely weak light signals. Conventional SPAD devices manufactured with silicon-based CMOS technology have a high dark count rate (DCR), makin
Externí odkaz:
https://doaj.org/article/9451a4b5ba254a14a1de08ecd772f2fb
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 2, Pp 1-10 (2020)
We demonstrate that the linearity of silicon ring modulators can be improved significantly by manipulating the dynamics of photons in the cavity. A theoretically model is established to analyze the dependence of the modulation linearity on lifetime a
Externí odkaz:
https://doaj.org/article/176027b485dc42b9ba0cd11368319b0e
Autor:
Luana Franca-Vieira, Vitaly F. Rodriguez-Esquerre, Anderson Dourado Sisnando, C. E. Rubio-Mercedes
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 4, Pp 1-9 (2020)
This paper deals with the optimization of photonic structures, specifically waveguide couplers between a continuous waveguide (CWG) and a periodically segmented waveguide (PSW). For this purpose, a numerical technique called finite element method (FE
Externí odkaz:
https://doaj.org/article/4678e503b31049b4807f278a7c4df9e4
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 5, Pp 1-9 (2020)
Compressive sensing (CS) is an effective technique that can compress and recover sparse signals below the Nyquist-Shannon sampling theorem restriction. In this study, we successfully realize CS based on the mesoscopic chaos of an integrated Si optome
Externí odkaz:
https://doaj.org/article/7a09da408d99493db4df548e53d6312f