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Laser Communication with Chandrayaan-3 Lander

Facts for Prelims (FFP)


Source: BS

 Context: NASA’s Lunar Reconnaissance Orbiter (LRO) has successfully pinged India’s Chandrayaan-3 mission‘s Vikram lander on the Moon using a laser instrument.

The laser beam was transmitted and reflected between the LRO and a retroreflector on the Vikram lander, located near the Moon’s south pole. The Laser Retroreflector Array on Chandrayaan-3’s lander, developed in partnership between NASA and ISRO, has started serving as a marker or reference point on the Moon.

Significance: This achievement opens up new possibilities for precisely locating targets on the lunar surface. The technique holds potential for future lunar missions utilizing retroreflectors.


About Laser communication (also known as optical communication)

It is a method of transmitting information using laser beams. Instead of traditional radio frequency signals, laser communication relies on light waves to carry data. It involves modulating the intensity of a laser beam to encode digital data, which is then transmitted and received by specialized equipment. Laser communication offers advantages such as higher data transfer rates, greater bandwidth, and potentially more secure communication channels.