Patent ID: 9485018
Filing Date: 2016-11-01
CPC Classification: H04B,H04J

Claim Text:
1. An optical transmission device comprising: a first optical source configured to transmit a first channel of light having a power level that is not known; a first collimator lens configured to collimate the first channel of light and to reflect a portion of the first channel of light as a first reflected channel of light, wherein the first reflected channel of light is a Fresnel reflection from the first collimator lens; a first optical monitor arranged to receive at least a first portion of the first reflected channel of light directly from the first collimator lens, and configured to communicate a first gross calibration electrical signal representative of received light including the first portion of the first reflected channel of light; a second optical monitor arranged to receive a second portion of the first reflected channel of light directly from the first collimator lens and configured to communicate a second gross calibration electrical signal representative of received light including the second portion of the first reflected channel of light; and a controller configured to calculate a first coefficient and a second coefficient from the first gross calibration electrical signal and the second gross calibration electrical signal, wherein the first gross calibration electrical signal, the second gross calibration electrical signal, the first coefficient, and the second coefficient are defined according to equations: CS CS RL a