Optical source monitoring system
AssigneeFinisar Corporation
InventorFrank Flens
Life of this patent
Estimating the term…
Abstract
An example embodiment includes an optical transmission device. The optical transmission device includes an optical source, a collimator lens, and an optical monitor. The optical source is configured to transmit a channel of light. The collimator lens is configured to reflect a portion of the channel of light. The optical monitor is arranged to receive at least a first portion of the reflected channel of light directly from the collimator lens, and is configured to communicate a gross electrical signal representative of received light including the first portion of the reflected channel of light.
Claims20
An optical transmission device comprising:
- an optical source configured to transmit a channel of light;
- a collimator lens configured to collimate the channel of light and to reflect a portion of the channel of light;
- and
- an optical monitor arranged to receive at least a first portion of a reflected channel of light directly from the collimator lens, and configured to communicate a gross electrical signal representative of received light including the first portion of the reflected channel of light.
An optical transmission device comprising:
- a plurality of optical sources, each of the optical sources configured to transmit a channel of light;
- a plurality of collimator lenses, each of the collimator lenses positioned in relation to a primary optical source of the plurality of optical sources such that the channel of light transmitted by the primary optical source is reflected from the collimator lens;
- a plurality of optical monitors, each of the optical monitors positioned in relation to the one of the collimator lenses such that the optical monitor receives a first portion of a first reflected channel of light transmitted by the primary optical source and a second portion of a second reflected channel of light transmitted by a secondary optical source directly from the collimator lenses, and is configured to communicate one of a plurality of gross electrical signals representative of received light including the first portion of the first reflected channel of light and the second portion of the second reflected channel of light;
- and
- a controller configured to determine a plurality of discrete signals representative of the channels of light transmitted by the primary optical sources based on the plurality of the gross electrical signals.
A method of monitoring an optical system including a plurality of optical sources, a plurality of optical monitors, and a plurality of collimator lenses, the method comprising:
- generating a set of coefficients which is configured to indicate quantities of received light to attribute to each of the plurality of optical sources;
- receiving a gross electrical signal representative of the received light that includes a plurality of reflected channels of light directly from the collimator lenses;
- and
- based on the set of coefficients and the gross electrical signal, determining a distinct signal representative of a first channel of light transmitted by a first optical source of the plurality of optical sources.
Dependencies are inferred from the claim text.