Title

Submicrosecond speed variable optical attenuator using acoustooptics

Authors

Authors

N. A. Riza;Z. Yaqoob

Abbreviated Journal Title

IEEE Photonics Technol. Lett.

Keywords

acoustooptics; attenuator; Bragg cell; Engineering, Electrical & Electronic; Optics; Physics, Applied

Abstract

A novel variable optical attenuator (VOA) is introduced that can provide high dynamic range and high-resolution all at fast submicrosecond speeds. The VOA design exploits an in-line one-to-one imaging optical architecture operating with Bragg-mode acoustooptic Bragg cells, Optical attenuation is achieved via frequency and drive voltage control of the Bragg cells, leading to flexible and precise attenuation-level settings. VOA demonstrated a 45-dB dynamic range with a 175-ns switching time. Other measured parameters include 1.14-dB/MHz resolution, 1.56-dB polarization dependent loss, and an excess loss of 3.55 dB.

Journal Title

Ieee Photonics Technology Letters

Volume

13

Issue/Number

7

Publication Date

1-1-2001

Document Type

Article

Language

English

First Page

693

Last Page

695

WOS Identifier

WOS:000169452000017

ISSN

1041-1135

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