Fabrication of high extinction ratio lithium niobate integrated optical modulators using photorefractive trimming

被引：1

作者：

Tronev, A. ^{[1
,2
]}

Parfenov, M. ^{[3
]}

Agruzov, P. ^{[1
]}

Ilichev, I. ^{[1
]}

Shamray, L. ^{[3
]}

Shamray, A. ^{[1
,2
,3
]}

机构：

[1] Ioffe Inst, 26 Polytekh Skaya Str, St Petersburg 194021, Russia

[2] ITMO Univ, 49 Kronverkskiy Ave, St Petersburg 197101, Russia

[3] Peter Great St Petersburg Polytech Univ, 29 Polytekh Skaya Str, St Petersburg 195251, Russia

来源：

INTEGRATED OPTICS: DEVICES, MATERIALS, AND TECHNOLOGIES XXII | 2018年 / 10535卷

关键词：

Integrated optics; lithium niobate; photorefractive effect; Mach-Zehnder modulator; high extinction ratio;

D O I：

10.1117/12.2291493

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A method for increasing the extinction ratio of integrated optical Mach-Zehnder modulators based on LiNbO3 via the photorefractive effect is proposed. The influence of the photorefractive effect on the X- and Y-splitters of intensity modulators is experimentally studied. An increase in the modulator extinction ratio by 17 dB (from 30 to 47 dB) is obtained. It is shown that fabricated modulators with a high extinction ratio are important for quantum key distribution systems.

引用

页数：5

共 8 条

[1] Photonic applications of lithium niobate crystals [J].