7 New technologies appeared based on laser radar principles, such as optical coherence tomography (OCT) and digital holography. 1 Laser radar became the topic for new fundamental books 2 – 5 and reports, 6 as well as a subject taught at the universities.
Mits itrace professional#
Numerous publications accompanied the maturing of laser radar, bringing to life new journals, new professional meetings, symposia and conferences, such as “Laser Radar Technologies and Applications” managed by the SPIE as part of the Defense and Commercial Sensing symposium, which includes special laser radar courses for participants. Many laser radars are now being developed in the eye safe short-wave infrared region ( ∼ 1.5 μ m). Laser radar started operating in the visible region (ruby laser) and then appeared in the near infrared (Nd:YAGlasers) to the thermal infrared ( CO 2 laser). Laser radar has become relatively inexpensive and reliable, and has very rich phenomenology, making laser radar competitive compared to alternative sensor technologies, such as passive electro-optical sensors or microwave radar. There had been some earlier lidar development prior to the invention of the laser, but the laser has been a real enabler. Laser radar (also called ladar for laser detection and ranging, lidar for light detection and ranging, or opdar for optical detection and ranging) started most of its development in the early 1960s, shortly after the invention of the laser.
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