EFFICIENT LINBO3 BALANCED BRIDGE MODULATOR-SWITCH WITH AN ION-ETCHED SLOT

被引：22

作者：

MINAKATA, M

机构：

[1] Musashino Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Musashino-shi

来源：

APPLIED PHYSICS LETTERS | 1979年 / 35卷 / 01期

关键词：

D O I：

10.1063/1.90922

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A simple modified balanced bridge modulator or switch is reported. The modulator is comprised of only straight waveguides and an ion-etched slot used for a conventional phase shifter. The slot excavated at the center of two coupled waveguides solves the coupling of them. 3-dB coupler monitoring is performed here by a metal loading. The modulator is fabricated by diffusing Ti into z-cut LiNbO3. Each patterned waveguide is fabricated by diffusing Ti into z-cut LiNbO3. Each patterned waveguide is 7 μm wide and the spacing is 7 μm. The 3-dB coupler is 2.9 mm long, and the excavated slot is 15 mm long, 4 μm wide, and 4.5 μm deep. The overall length is 20.8 mm. For the TM-like fundamental mode, the half-wave voltage was 2.8 V, the extinction ratio was -15 dB, and the optical insertion loss was as low as 2.6 dB at the 1.15-μm wavelength.

引用

页码：40 / 42

页数：3

共 13 条

[11] BALANCED BRIDGE MODULATOR SWITCH USING TI-DIFFUSED LINBO3 STRIP WAVEGUIDES [J].

RAMASWAMY, V ;

DIVINO, MD ;

STANDLEY, RD .

APPLIED PHYSICS LETTERS, 1978, 32 (10) :644-646

[12] ELECTRO-OPTICALLY SWITCHED COUPLER WITH STEPPED DELTA-BETA-REVERSAL USING TI-DIFFUSED LINBO-3 WAVEGUIDES [J].

SCHMIDT, RV ;

KOGELNIK, H .

APPLIED PHYSICS LETTERS, 1976, 28 (09) :503-507

[13] OPTICAL INTENSITY MODULATOR WITH 3-DIMENSIONAL WAVEGUIDE [J].

UEHARA, S ;

TAKAMOTO, K ;

MATSUO, S ;

YAMAUCHI, Y .

APPLIED PHYSICS LETTERS, 1975, 26 (06) :296-298

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