Zobrazeno 1 - 10
of 416
pro vyhledávání: '"electro-optical devices"'
Publikováno v:
High Voltage, Vol 6, Iss 4, Pp 608-624 (2021)
Abstract Surface charges accumulated on solid insulating materials in electrical apparatuses and electronic devices could distort the initial electric field and severely damage the insulation performance. Accurate transient surface charge measurement
Externí odkaz:
https://doaj.org/article/83a364ce9d5648ccbad2bf432ed8dc5a
Autor:
Tobias Lamprecht, Felix Betschon, Johan Bauwelinck, Joris Van Kerrebrouck, Joris Lambrecht, Holger Gaul, Alexander Eichler, Xin Yin
Publikováno v:
IET Optoelectronics, Vol 15, Iss 2, Pp 92-101 (2021)
Abstract Chip‐on‐board silicon photonics O‐band wavelength‐division multiplexing transceivers have been developed that will eventually enable high‐throughput on‐board optical communication for multi‐socket on‐board communication. This
Externí odkaz:
https://doaj.org/article/82ae20652f494373b66a7e3ef55d84a6
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 2, Pp 1-15 (2021)
Dimensional parameters are optimized comparing stoichiometric and Si-rich silicon nitride-based push-pull modulators using a slot waveguide structure, electro-optic polymer cladding, and in-plane ground-signal-ground electrode. An optical power confi
Externí odkaz:
https://doaj.org/article/adfa38e56521416f923819b58bd3ad18
Autor:
Cheng Zhao, Zhu Xiaolong, Galili Michael, Frandsen Lars Hagedorn, Hu Hao, Xiao Sanshui, Dong Jianji, Ding Yunhong, Oxenløwe Leif Katsuo, Zhang Xinliang
Publikováno v:
Nanophotonics, Vol 9, Iss 8, Pp 2377-2385 (2019)
Graphene has been widely used in silicon-based optical modulators for its ultra-broadband light absorption and ultrafast optoelectronic response. By incorporating graphene and slow-light silicon photonic crystal waveguide (PhCW), here we propose and
Externí odkaz:
https://doaj.org/article/3de340c2b02345cc9df4d4f4241cb03f
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 3, Pp 1-11 (2019)
Compact high-performance electro-optic (EO) modulators are key elements for optical communications. An electro-absorption modulator is theoretically designed. Due to the introduction of graphene film over the silicon slot waveguide, the modulation ef
Externí odkaz:
https://doaj.org/article/c3c1f99b5d514c4b824d9d31399f52d2
Autor:
Patrick Steglich, Claus Villringer, Birgit Dietzel, Christian Mai, Sigurd Schrader, Mauro Casalboni, Andreas Mai
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 3, Pp 1-10 (2019)
A novel method to determine the dispersion of the quadratic electro-optic effect in nonlinear optical materials by using a silicon-on-insulator microring resonator is presented. The microring consists of a silicon slot waveguide enabling large dc ele
Externí odkaz:
https://doaj.org/article/343fbddefed140c582be41045be86feb
Autor:
Zahid Hussain
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 6, Pp 1-35 (2019)
The values of dn/dT for thermally evaporated WO3 thin films were found to be negative either in the heating cycle (295-373 K) or in the cooling cycle (100-300 K) and were found to be of order of 10-5 K-1. On the other hand thermo optic coefficients (
Externí odkaz:
https://doaj.org/article/13bad0215151403d8c9151139dfc286d
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-10 (2018)
An electro-optic modulator (EOM) based on a racetrack resonator coupled to a waveguide using butterfly multi-mode interference (MMI) coupler is fabricated on Y-cut lithium niobate (LN) thin film. This is the first demonstration of a LN EOM in which t
Externí odkaz:
https://doaj.org/article/f9576753b0794daaa0d63ee037f2b64e
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 4, Pp 1-10 (2018)
We analyze theoretically biaxially tensile strained Ge/Si0.18Ge0.82 multiple quantum wells (MQWs) for electro-absorption modulators with low polarization sensitivities. The difference between TE and TM polarized momentum matrix elements and absorptio
Externí odkaz:
https://doaj.org/article/16e09648ac8846fdb43524311ba7368b
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 3, Pp 1-13 (2017)
In this paper, we demonstrate a frequency shifter at 780 nm based on an X-cut Z -propagating lithium niobate waveguide platform with an isotropic orientation. The electro-optic effect modulates the signal with traveling-wave configuration. The freque
Externí odkaz:
https://doaj.org/article/f9341db13ae54a38adb848af9404dc88