Blockless fiber optic attenuators and attenuation systems employing dispersion tailored polymers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6335998
APP PUB NO 20010016106A1
SERIAL NO

09789093

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Controllable fiber optic attenuators and attenuation systems are disclosed for controllably extracting optical energy from a fiber optic, and therefore attenuating the optical signal being transmitted through the fiber optic. In one aspect, material is removed from a portion of the fiber optic, thereby exposing a surface through which optical energy can be extracted. The portion of the fiber is suspended between two support points, and a controllable material is formed over the surface for controllably extracting optical energy according to a changeable stimulus applied thereto, which affects the refractive index thereof. In one embodiment, the changeable stimulus is temperature, and a controllable heating/cooling source can be provided in the attenuator for control of the attenuation. The limited amount of thermal contact between the suspended, side-polished portion of the fiber optic and the controllable material to surrounding structures offers a more predictable response, and improved response time. The controllable material, in one embodiment, may be a dispersion controlled (e.g., matched) polymer, offering uniform spectral characteristics of attenuation across a wavelength band of interest.

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Patent Owner(s)

Patent OwnerAddress
MOLECULAR OPTOELECTRONICS CORPORATION877 25TH STREET WATERVLIET NY 12189

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chan, Kwok Pong Troy, NY 82 569
Gascoyne, David G Schenectady, NY 16 184
McCallion, Kevin J Boston, MA 38 908
Wagoner, Gregory A Watervliet, NY 16 226

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