Optical-electrical device using hybrid automated testing equipment
AssigneeJuniper Networks, Inc.
InventorsChris Barnard, Steven William Keck, Crispin Cruz Mapagay, George R. Sosnowski, Mark Stenholm
Life of this patent
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Abstract
An optical-electrical device can implement a feedback-based control loop for temperature of the device during component calibration. The optical-electrical device can implement compressed air to vary the device temperature during calibration. Additionally, non-active components of the device can be provided current to vary the temperature of the device in concert with the provided compressed air. Additional calibration temperatures can be implemented by activating and deactivating additional non-active components in the device, such as light sources, optical amplifiers, and modulators.
Claims20
A method for calibrating a photonic integrated circuit device, the method comprising:
- activating an optical component in the photonic integrated circuit device;
- determining an initial temperature using an integrated temperature sensor that is integrated in the photonic integrated circuit device;
- receiving a calibration adjustment to the optical component of the photonic integrated circuit device;
- detecting an increased temperature generated by the integrated temperature sensor;
- and
- in response to the increased temperature, adjusting, using a processor circuit in the photonic integrated circuit device, a temperature control signal to cause a pressured air source to vary an airflow directed towards the photonic integrated circuit device such that a temperature of the photonic integrated circuit device is adjusted closer to the initial temperature.
A photonic integrated circuit device comprising:
- an optical component to receive current that sets the photonic integrated circuit device at an initial temperature, the optical component receiving a calibration adjustment while the photonic integrated circuit device is set to the initial temperature;
- an integrated temperature sensor to determine an initial temperature;
- and
- a processor circuit to generate a temperature control signal that adjusts a pressured air source that directs an airflow towards the photonic integrated circuit device such that a strength of the airflow is changed and a temperature of the photonic integrated circuit device is adjusted closer to the initial temperature.
Dependencies are inferred from the claim text.