Bragg gratings in thin-film LiNbO3 waveguides

被引：60
作者：
Baghban, Mohammad Amin [1 ]
Schollhammer, Jean [1 ]
Errando-Herranz, Carlos [2 ]
Gylfason, Kristinn B. [2 ]
Gallo, Katia [1 ]
机构：
[1] KTH Royal Inst Technol, Dept Appl Phys, Roslagstullsbacken 21, SE-10691 Stockholm, Sweden
[2] KTH Royal Inst Technol, Dept Micro & Nanosyst, Osquldas Vag 10, SE-10044 Stockholm, Sweden
来源：
OPTICS EXPRESS | 2017年 / 25卷 / 26期
基金：
瑞典研究理事会;
关键词：
LITHIUM-NIOBATE; 2ND-HARMONIC GENERATION; INSULATOR; DEVICES; RESONATORS; LASER; CHIP;
D O I：
10.1364/OE.25.032323
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We design, fabricate and characterize sidewall corrugated Bragg gratings in a high confinement integrated optics lithium niobate platform, comprising submicrometric photonic wires, tapers and grating couplers to interface off-chip standard telecom optical fibers. We analyze the grating performance as band-rejection filter for TE-polarized signals in the telecom C-band, considering both rectangular and sinusoidal sidewall profiles, and demonstrate record extinction ratios as high as 27 dB and rejection bandwidths as narrow as 3 nm. The results show the potential for an efficient integration of novel photonic functionalities into low-footprint LiNbO3 nonlinear and electro-optical waveguide devices. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：32323 / 32332
页数：10
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