High-efficiency chirped grating couplers on lithium niobate on insulator

2020 ◽  
Vol 45 (24) ◽  
pp. 6651
Author(s):  
Shuting Kang ◽  
Ru Zhang ◽  
Zhenzhong Hao ◽  
Di Jia ◽  
Feng Gao ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
High Efficiency ◽  
Grating Couplers ◽  
Chirped Grating

High-efficiency Chirped Grating Couplers on Lithium Niobate on Insulator

2021 ◽  
Author(s):  
Shuting Kang ◽  
Ru Zhang ◽  
Zhenzhong Hao ◽  
Di Jia ◽  
Feng Gao ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
High Efficiency ◽  
Grating Couplers ◽  
Chirped Grating

scholarly journals High-efficiency hybrid amorphous silicon grating couplers for sub-micron-sized lithium niobate waveguides

2018 ◽  
Vol 26 (23) ◽  
pp. 29651 ◽  
Author(s):  
Jian Jian ◽  
Pengfei Xu ◽  
Hui Chen ◽  
Mingbo He ◽  
Zeru Wu ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Amorphous Silicon ◽  
High Efficiency ◽  
Grating Couplers

High-efficiency subwavelength-engineered surface grating couplers in SOI and DSOI

2014 ◽  
Author(s):  
Daniel Benedikovic ◽  
Pavel Cheben ◽  
Jens H. Schmid ◽  
Dan-Xia Xu ◽  
Shurui Wang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Grating Couplers ◽  
Surface Grating

scholarly journals Realization of alignment-tolerant grating couplers for z-cut thin-film lithium niobate

2019 ◽  
Vol 27 (11) ◽  
pp. 15856 ◽  
Author(s):  
Arunita Kar ◽  
Meisam Bahadori ◽  
Songbin Gong ◽  
Lynford L. Goddard
Keyword(s):  
Thin Film ◽  
Lithium Niobate ◽  
Grating Couplers

scholarly journals Amplitude electro-optical modulation of radiation by sequences of Fabry-Perot resonators

2020 ◽  
Vol 56 (2) ◽  
pp. 217-223
Author(s):  
V. B. Zalesski ◽  
A. I. Konoiko ◽  
V. M. Kravchenko ◽  
H. S. Kuzmitskaya
Keyword(s):  
Lithium Niobate ◽  
High Efficiency ◽  
Optical Modulation ◽  
Operating Point ◽  
Optical Modulator ◽  
Control Voltage ◽  
Clock Frequency ◽  
Fabry Perot ◽  
In Series ◽  
Light Signals

In this paper, we considered the method of amplitude electro-optical modulation of radiation using sequences of Fabry-Perot resonators based on the transverse electro-optical effect on the example of lithium niobate LiNbO3. With this method, it is possible to significantly reduce the voltage of the control electromagnetic field of the electro-optical amplitude modulator operating in the transmission mode of the light beam while maintaining its high efficiency. The reduction of the control voltage is achieved by increasing the number of Fabry-Perot resonators installed in series and the phase shift relative to the extremum of the transmittance function. This method allows to diminish the duration of the received light signals which leads to an increase in the clock frequency while maintaining a high efficiency of the radiation modulation. Diminishing the duration of light signals is achieved by using separate modulation channels of two sequences of electro-optical Fabry-Perot resonators, the first of which works on the transmission and the second one on the reflection. Increasing the clock frequency at the output of the modulator is achieved by summing the signals coming from several modulation channels. It is shown that the value of the control voltage for an amplitude electro-optical modulator based on a sequence of Fabry-Perot resonators made of lithium niobate LiNbO3, with an operating wavelength of 1.307 microns, can be 4 V in the case when its initial operating point corresponds to the maximum transmittance. The control voltage is 2 V if the initial operating point is shifted in phase relative to the extremum of the transmittance function.

Bi-wavelength two dimensional chirped grating couplers for low cost WDM PON transceivers

2011 ◽  
Vol 284 (8) ◽  
pp. 2242-2244 ◽  
Author(s):  
Lin Xu ◽  
Xia Chen ◽  
Chao Li ◽  
Hon Ki Tsang
Keyword(s):  
Low Cost ◽  
Two Dimensional ◽  
Grating Couplers ◽  
Chirped Grating ◽  
Wdm Pon

scholarly journals High-Efficiency SOI Fiber-to-Chip Grating Couplers and Low-Loss Waveguides for the Short-Wave Infrared

2012 ◽  
Vol 24 (17) ◽  
pp. 1536-1538 ◽  
Author(s):  
Nannicha Hattasan ◽  
Bart Kuyken ◽  
Francois Leo ◽  
Eva M. P. Ryckeboer ◽  
Diedrik Vermeulen ◽  
...  
Keyword(s):  
High Efficiency ◽  
Short Wave ◽  
Low Loss ◽  
Grating Couplers ◽  
Short Wave Infrared
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