POLARIZATION-INDEPENDENT INTEGRATED OPTICAL, ACOUSTICAL TUNABLE DOUBLE-STAGE WAVELENGTH FILTER IN LINBO3

被引：43

作者：

TIAN, F

HARIZI, C

HERRMANN, H

REIMANN, V

RICKEN, R

RUST, U

SOHLER, W

WEHRMANN, F

WESTENHOFER, S

机构：

[1] Universität-GH-Paderborn, Angewardte Physik, D-33098 Paderborn

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1994年 / 12卷 / 07期

关键词：

Acoustic surface wave filters - Acoustic transducers - Acoustooptical devices - Frequency response - Integrated optoelectronics - Interference suppression - Light polarization - Light transmission - Lithium compounds - Optical beam splitters - Optical fiber coupling - Optical frequency conversion;

D O I：

10.1109/50.301812

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report a polarization-independent integrated acousto-optical double-stage wavelength filter in X-cut, Y-propagating LiNbO3. The device consists of a combination of four acousto-optical mode converters, a TE- and a TM-pass polarizer, and two polarization splitters; their specific design and properties are discussed. The filter has a bandwidth of 1.4 nm and a tuning range of 76 nm around lambda almost-equal-to 1.55 mum. Maximum filter transmission is achieved with a RF drive power of only 80 mW; it excites via a single unidirectional transducer a guided surface acoustic wave driving the four polarization converters of both stages. Fiber-to-fiber insertion loss is 4.6 dB for TM- and 4.8 dB for TE-polarized waves. Multiwavelength filtering has been demonstrated.

引用

页码：1192 / 1197

页数：6

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