Beam Waist

Location with minimum beam radius.

The beam waist of a Laser beam is the location along the propagation direction where the Beam Radius has a minimum. The waist radius is the beam radius at this location. A small beam waist can be obtained by focusing a Laser Beam with a Lens which has a high numerical aperture, and making sure that the lens aperture is largely filled by the input beam. For non-circular beams, the position of the beam waist can be different for different transverse directions. This phenomenon is called astigmatism, and it may be generated or removed by using cylindrical optics.

Sign up for the Timbercon newsletter:

    By submitting this form, you are consenting to receive marketing emails from: Timbercon, 20245 SW 95th Avenue Tualatin, OR 97062 United States, You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email.

    This site uses cookies to enhance the user experience, and by browsing this site, you are accepting the receipt of cookies on your browser from this site. To manage use of cookies, please refer to your browser settings. Click here to learn more.