Remote Operation: what does it mean in laser safety practices?

• A. It means the operator must be near the laser sources.
• B. It means the laser is automatically controlled without human input.
• C. User may operate the laser system remotely rather than directly near laser sources.
• D. It is only used during emergency shutdown.

Answer: (C)

Remote operation means controlling the laser system from a location away from the actual laser emission point, using remote interfaces, interlocks, and monitoring displays so the operator does not have to stand near the laser. This setup reduces exposure to hazardous radiation and allows quick shutoff or adjustments from a safe distance if something changes or a fault occurs. In practice, you can start or stop the laser, change settings, and monitor operation from a safe control area or enclosure.

Why this fits best: it captures the core safety goal of keeping the operator away from the laser while it’s active. The other statements don’t match this idea—being near the laser increases exposure risk; automatic control removes human input (not inherently remote operation); and remote operation isn’t limited to emergencies but is a standard safety practice for normal operation.