A method for simultaneous data and power transmission over an optical waveguide connecting a base station and a remote station, the method comprising:
- providing the base station with an optical interface having a base station optical arrangement of devices and providing the remote station with an optical interface having a remote station optical arrangement of devices, with each device being permeable to a selective wavelength;
- generating a first laser beam having a first wavelength with a high power laser source at the base station;
- generating a second laser beam having a second wavelength with a base station low power laser source at the base station;
- coupling the first and second laser beams into the optical waveguide;
- transmitting power on the first laser beam from the base station to the remote station via the optical waveguide;
- transmitting data on the second laser beam from the base station to the remote station via the optical waveguide;
- directing the first laser beam to a first remote station optical receiver and directing the second laser beam to a second remote station optical receiver;
- receiving the power from the base station at the first remote station optical receiver;
- receiving the data from the base station at the second remote station optical receiver;
- generating a third laser beam having a third wavelength with a remote station low power laser source at the remote station;
- coupling the third laser beam into the optical waveguide;
- transmitting data on the third laser beam from the remote station to the base station via the optical waveguide;
- directing the third laser beam from the optical waveguide to a base station optical receiver;
- receiving the data from the remote station at the base station optical receiver;
- wherein the first wavelength, the second wavelength and the third wavelength are distinct from each other;
- wherein:
- the base station optical arrangement of devices includes:
- a first device permeable to the first laser beam and reflecting the third laser beam, wherein the first device is arranged to cause the first laser beam to be coupled into the optical waveguide and the third laser beam from the optical waveguide to be reflected towards the base station optical receiver;
- a second device permeable to the first and third laser beams and reflecting the second laser beam, wherein the second device is arranged to cause the first laser beam to be coupled into the optical waveguide, the third laser beam to pass through the second device towards the first device and the second laser beam to be reflected and coupled into the optical waveguide;
- and
- the remote station optical arrangement of devices comprises:
- a third device permeable to the first and third laser beams and reflecting the second laser beam, wherein the third device is arranged to cause the first laser beam, after passing through the third device, to be directed to a fourth device, the third laser beam to be coupled into the optical waveguide and the second laser beam from the optical waveguide to be reflected towards the second remote station optical receiver;
- the fourth device permeable to the first laser beam and reflecting the third laser beam, wherein the fourth device is arranged to cause the first laser beam to be directed to the first remote station optical receiver and the third laser beam to be reflected towards the third device.