laser_power_transfer
Differences
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| laser_power_transfer [2025/06/02 22:27] – created np | laser_power_transfer [2025/06/09 11:55] (current) – np | ||
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| For ground-based LPT, selecting the laser wavelengths within the atmospheric transmission window (typically between 780 nm and 1100 nm) and operating under favourable weather conditions are important to maximise the transmission efficiency. In underwater applications, | For ground-based LPT, selecting the laser wavelengths within the atmospheric transmission window (typically between 780 nm and 1100 nm) and operating under favourable weather conditions are important to maximise the transmission efficiency. In underwater applications, | ||
| - | The purpose of the laser receiver subsystem is to receive the optical laser energy and convert it back to usable electrical energy. During the conversion of laser energy to electrical power, PV cells generate heat, which, if not properly managed, can degrade their performance and lifespan. Thermal management systems are essential to dissipate this heat and maintain optimal operating temperatures | + | The purpose of the laser receiver subsystem is to receive the optical laser energy and convert it back to usable electrical energy. During the conversion of laser energy to electrical power, PV cells generate heat, which, if not properly managed, can degrade their performance and lifespan. Thermal management systems are essential to dissipate this heat and maintain optimal operating temperatures. In this process, the conversion efficiency will directly affect the power delivery of the LPT system. It consists of a PV cell or an array of PV cells. To achieve the highest possible efficiency, the receiver must be precisely aligned with the laser beam and specifically adjusted to match the wavelength of the incoming laser. For example, gallium arsenide (GaAs) and indium gallium phosphide (InGaP) PV cells are commonly used because of their high conversion efficiencies with lasers in the near-infrared range. |
| To allow only the laser beam to pass through and block other types of extra light, such as ambient or artificial light, optical filters are used. This improves the overall efficiency and durability of the receiver. One of the most common types is the bandpass filter, which allows a specific range of wavelengths to pass through while blocking all others. This makes it ideal for isolating the laser light from background noise. Another frequently used filter is the dichroic filter, also known as an interference filter. It reflects unwanted wavelengths while the desired ones can pass through it. This ensures a high precision and low loss. This is especially useful in systems where maintaining a clean laser signal is critical. Notch filters are designed to block a very narrow range of wavelengths while passing the rest, which can be useful in systems with multiple lasers or potential sources of interference. | To allow only the laser beam to pass through and block other types of extra light, such as ambient or artificial light, optical filters are used. This improves the overall efficiency and durability of the receiver. One of the most common types is the bandpass filter, which allows a specific range of wavelengths to pass through while blocking all others. This makes it ideal for isolating the laser light from background noise. Another frequently used filter is the dichroic filter, also known as an interference filter. It reflects unwanted wavelengths while the desired ones can pass through it. This ensures a high precision and low loss. This is especially useful in systems where maintaining a clean laser signal is critical. Notch filters are designed to block a very narrow range of wavelengths while passing the rest, which can be useful in systems with multiple lasers or potential sources of interference. | ||
laser_power_transfer.txt · Last modified: by np