Mechanism of a Variable Optical Attenuator Based on Guided Wave Resonance

Chin. Phys. Lett.

2001, Vol. 18

Issue (9): 1288-1290 DOI:

Original Articles

Mechanism of a Variable Optical Attenuator Based on Guided Wave Resonance

JIANG Yi;CAO Zhuang-Qi; DOU Xiao-Ming

Molecular Photonics Laboratory, Department of Physics, Shanghai Jiao Tong University, Shanghai 200240

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JIANG Yi, CAO Zhuang-Qi, DOU Xiao-Ming 2001 Chin. Phys. Lett. 18 1288-1290

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Abstract The mechanism of an electrically controlled variable optical attenuator is investigated based on the varying energy coupling efficiency of a light beam into a guided wave resonance. Compared to the conventional attenuated total internal reflection devices based on the surface plasmon resonance, the driving voltage for this attenuator is greatly reduced because of the newly chosen working interior angle. This paper explains the principle of attenuator operation and presents experimental results obtained on a realization of the device.

Keywords: 85.60.-q 78.20.Jq

Published: 01 September 2001

PACS:	85.60.-q	(Optoelectronic devices)
	78.20.Jq	(Electro-optical effects)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2001/V18/I9/01288

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