Nd YAG laser has wavelength of about 10600 angstrom, that is in infrared region of spectrum. Nd YAG lasers may be operated in either a pulse mode or a continuous mode. The output powers for continuous wave mode range from 0.1 watts to 100 watts. The peak power for the pulse mode can range from tens or hundreds of kilowatts with a pulse lasting milliseconds. The pulse will last for 10-20 nanoseconds for a peak power of hundred megawatts.
Reference: This article is referred from my authored book “optics and lasers” having ISBN 978-81-272-3833-9. In case of any doubt, about this article or in any other physics related article, post in the comment section.