Controlling bias voltages for optical modulators
Номер патента: EP2845049A1
Опубликовано: 11-03-2015
Автор(ы): Andrew James Smith, Mohammed Nawaz
Принадлежит: BAE SYSTEMS plc
Опубликовано: 11-03-2015
Автор(ы): Andrew James Smith, Mohammed Nawaz
Принадлежит: BAE SYSTEMS plc
Реферат: Methods and apparatus for controlling a bias voltage (20) supplied to an optical modulator that comprises a biasable component configurable to be biased by application of the bias voltage (20), the method comprising: providing a target for the modulator output power; applying, to the biasable component, a bias voltage (20) that biases the biasable component so that the output power is within a pre-defined range of the target; monitoring the output power and, if the output power of the modulator is determined to be outside the pre-defined range, varying the value of the bias voltage (20) to bring the output power back within the pre-defined range; and monitoring the optical input to the modulator and, if it has been disabled, maintaining the bias voltage (20) at its current level for a pre-determined length of time that is dependent upon how long the modulator has been operating at quadrature.
Controlling bias voltages for optical modulators
Номер патента: US09846318B2. Автор: Andrew James Smith,Mohammed Nawaz. Владелец: BAE SYSTEMS plc. Дата публикации: 2017-12-19.