Hybrid electro-optic polymer/sol-gel waveguide directional coupler switches

被引：46

作者：

Enami, Y. ^{[1
,2
]}

Mathine, D. ^{[1
]}

DeRose, C. T. ^{[1
]}

Norwood, R. A. ^{[1
]}

Luo, J. ^{[3
]}

Jen, A. K-Y. ^{[3
]}

Peyghambarian, N. ^{[1
]}

机构：

[1] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA

[2] Hiroshima Univ, Res Inst Nanodevice & Bio Syst, Hiroshima 7398527, Japan

[3] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 21期

关键词：

electro-optical switches; optical polymers; optical saturable absorption; optical waveguides; MODULATORS;

D O I：

10.1063/1.3141452

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report electro-optic (EO) switches using transversely tapered hybrid EO/sol-gel waveguide directional couplers. The length of the active region critically reduces to 1.5 mm with transverse tapers, which is shorter by a factor of 5 than the active region with vertical tapers. The transitions are performed from a sol-gel core to two EO polymer cores with gradual index changes using gray-scaled photobleaching. The device shows the lowest switching voltage and an active length product (V(s)L(a)) of 2.9 V cm with a guest-host EO polymer AJLS102, compared to hybrid waveguide switches and modulators with vertical taper and higher EO coefficients.

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页数：3

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