Planar coupling to high-Q lithium niobate disk resonators

被引：42

作者：

Conti, G. Nunzi ^{[1
]}

Berneschi, S. ^{[1
,2
,3
]}

Cosi, F. ^{[1
]}

Pelli, S. ^{[1
]}

Soria, S. ^{[1
]}

Righini, G. C. ^{[1
]}

Dispenza, M. ^{[4
]}

Secchi, A. ^{[4
]}

机构：

[1] IFAC CNR, NelloCarrara Inst Appl Phys, I-50019 Florence, Italy

[2] Museo Stor Fis, I-00184 Rome, Italy

[3] Ctr Studi & Ric Enrico Fermi, I-00184 Rome, Italy

[4] SELEX Sistemi Integrati SpA, Microelect & Photon Dept, I-00131 Rome, Italy

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 04期

关键词：

MICROSPHERE RESONATORS; WAVE-GUIDES;

D O I：

10.1364/OE.19.003651

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate optical coupling to high-Q lithium niobate disks from an integrated lithium niobate waveguide. The waveguides are made by proton exchange in X-cut lithium niobate substrate. The disks with diameter of 4.7 mm and thickness of 1 mm are made from commercial Z-cut lithium niobate wafers by polishing the edges into a spheroidal profile. Both resonance linewidth and cavity ringdown measurements were performed to calculate the Q factor of the resonator, which is in excess of 10(8). Planar coupling represents the most promising technique for practical applications of whispering gallery mode resonators. (C) 2011 Optical Society of America

引用

页码：3651 / 3656

页数：6

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