An optical fiber includes an optical fiber core for high-power laser transmission, an optical cladding disposed radially around the optical fiber core, and at least one harvesting cell disposed axially along the optical fiber core, the harvesting cell including an anode surrounding the optical cladding, a photovoltaic layer having a polymer-based photovoltaic material disposed radially around and electrically connected to the anode, and a cathode disposed radially around the photovoltaic layer and electrically connected to the photovoltaic layer.