A system for optical wireless power transmission to at least one power receiving apparatus, said system comprising: an optical resonator having end reflectors (9, 10) and adapted to emit an optical beam having a radiance of at least 800kW/m 2 /Steradian; a gain medium comprising either (i) a semiconductor device, or (ii) a solid host doped with Neodymium ions, said solid host being in optical communication with a filter attenuating radiation for at least one frequency having a wave number in the range 8,300 cm -1 to 12,500 cm -1, said gain medium being positioned inside said optical resonator and having a first bandgap energy, and said gain medium being thermally attached to a cooling system and configured to amplify light passing through it; a driver configured to supply power to said gain medium, and enabling control of the small signal gain of said gain medium; a beam steering apparatus configured to direct said optical beam in at least one of a plurality of directions; an optical-to-electrical power converter located in at least one power receiving apparatus and configured to convert said optical beam into electrical power having a voltage, said optical-to-electrical power converter having a second bandgap energy; a DC/DC boost voltage converter comprising an inductor, connected to an output of said optical-to-electrical power converter; a detector configured to provide a signal indicative of said optical beam impinging on said optical-to-electrical power converter; and a controller adapted to control at least one of the status of said beam steering apparatus and said driver, said controller receiving a control input signal at least from said detector, characterized in that said inductor is selected to have an inductance between: L = 1 1.28 ∗ 10 − 40 ∗ f ∗ E gain 2 ∗ 1 − E gain 5 ∗ 10 − 19 ∗ V output P laser _ driver and L = 1 3 ∗ 10 − 38 ∗ f ∗ E gain 2 ∗ 1 − E gain 4 ∗ 10 − 20 ∗ V output P laser _ driver where: f in the switching frequency of the DC/DC converter measured in Hertz, E gain is the bandgap energy of the gain medium measured in Joules, V output is the output voltage of the DC/DC converter in volts, and P laserdriver is the power measured in watts, supplied to the gain medium by the laser driver. an optical resonator having end reflectors (9, 10) and adapted to emit an optical beam having a radiance of at least 800kW/m 2 /Steradian; a gain medium comprising either (i) a semiconductor device, or (ii) a solid host doped with Neodymium ions, said solid host being in optical communication with a filter attenuating radiation for at least one frequency having a wave number in the range 8,300 cm -1 to 12,500 cm -1, said gain medium being positioned inside said optical resonator and having a first bandgap energy, and said gain medium being thermally attached to a cooling system and configured to amplify light passing through it; a driver configured to supply power to said gain medium, and enabling control of the small signal gain of said gain medium; a beam steering apparatus configured to direct said optical beam in at least one of a plurality of directions; an optical-to-electrical power converter located in at least one power receiving apparatus and configured to convert said optical beam into electrical power having a voltage, said optical-to-electrical power converter having a second bandgap energy; a DC/DC boost voltage converter comprising an inductor, connected to an output of said optical-to-electrical power converter; a detector configured to provide a signal indicative of said optical beam impinging on said optical-to-electrical power converter; and a controller adapted to control at least one of the status of said beam steering apparatus and said driver, said controller receiving a control input signal at least from said detector, characterized in that said inductor is selected to have an inductance between: L = 1 1.28 ∗ 10 − 40 ∗ f ∗ E gain 2 ∗ 1 − E gain 5 ∗ 10 − 19 ∗ V output P laser _ driver and L = 1 3 ∗ 10 − 38 ∗ f ∗ E gain 2 ∗ 1 − E gain 4 ∗ 10 − 20 ∗ V output P laser _ driver where: f in the switching frequency of the DC/DC converter measured in Hertz, E gain is the bandgap energy of the gain medium measured in Joules, V output is the output voltage of the DC/DC converter in volts, and P laserdriver is the power measured in watts, supplied to the gain medium by the laser driver. f in the switching frequency of the DC/DC converter measured in Hertz, E gain is the bandgap energy of the gain medium measured in Joules, V output is the output voltage of the DC/DC converter in volts, and P laserdriver is the power measured in watts, supplied to the gain medium by the laser driver.