US 12,250,027 B2
Polarization-diversity optical power supply
Peter Johannes Winzer, Aberdeen, NJ (US)
Assigned to Nubis Communications, Inc., New Providence, NJ (US)
Filed by Nubis Communications, Inc., Aberdeen, NJ (US)
Filed on Sep. 16, 2022, as Appl. No. 17/946,985.
Application 17/946,985 is a continuation in part of application No. PCT/US2021/035179, filed on Jun. 1, 2021.
Application 17/946,985 is a continuation in part of application No. 16/888,890, filed on Jun. 1, 2020, granted, now 11,621,795.
Claims priority of provisional application 63/245,011, filed on Sep. 16, 2021.
Prior Publication US 2023/0083467 A1, Mar. 16, 2023
Int. Cl. H04B 10/80 (2013.01); H04B 10/071 (2013.01); H04J 14/02 (2006.01)
CPC H04B 10/807 (2013.01) [H04B 10/071 (2013.01); H04J 14/02216 (2023.08)] 53 Claims
OG exemplary drawing
 
1. An apparatus comprising:
an optical power supply comprising:
a power supply light source configured to generate power supply light;
at least one optical input/output port;
at least one photodetector;
a coupling module configured to receive the power supply light from the power supply light source and output the power supply light through the optical input/output port, receive reflected light through the optical input/output port, and transmit the reflected light to the photodetector,
wherein the photodetector is configured to detect the reflected light and generate a signal representing a level of the reflected light, and
a controller that is configured to compare the level of the detected reflected light with a threshold value, and upon determining that the level of the detected reflected light is less than the threshold value, reduce or turn off the power supply light that is provided to the optical input/output port;
wherein the controller is configured to control an optical shutter or attenuator to reduce or block the power supply light that is provided to the optical input/output port.