Comparison of LED-pumped over diode-pumped lasers in certain applications

Since the introduction of the ruby laser in 1960, solid-state laser technology has evolved significantly. While some early laser systems relied on LEDs for pumping, the emergence of high-brightness laser diodes (LDs) shifted towards Diode-pumped systems. However, LDs present challenges such as temperature sensitivity, requiring relatively precise cooling systems. Recent advancements in LED technology, driven by market demand, have improved LED performance and reduced costs, making them viable alternatives for laser pumping. This paper systematically compares diode-pumped and LEDpumped lasers, highlighting the advantages of LED in terms of price, stability, and volume. LiDAR technology for self-driving cars is a key application discussed, where LED-pumped lasers offer a safer, cost-effective solution!