TY - GEN
T1 - Lasing with propagation invariant shaped beams
AU - Chriki, Ronen
AU - Smartsev, Slava
AU - Barach, Gilad
AU - Tradonsky, Chene
AU - Pal, Vishwa
AU - Friesem, Asher A.
AU - Davidson, Nir
PY - 2017
Y1 - 2017
N2 - Control of the propagation properties of complex beams is desired for many applications. Here we present a novel method to generate propagation invariant shaped beams. Our method is based on a modified degenerate cavity (MDC) [1], [2], which has a huge number of degrees of freedom (300,000 modes in our system), that can be coupled and controlled. Specifically, the MDC allows direct access to both the x-space and k-space components of the laser beam. Accordingly, placing two amplitude masks, one in x-space and one in k-space, enables control of the output beam. Varying the geometric properties of the mask in x-space changes the shape of the output beam, and varying the geometric properties of the mask in k-space breaks the degeneracy between modes and forms spatial correlations (partial spatial coherence) in the output beam [1].
AB - Control of the propagation properties of complex beams is desired for many applications. Here we present a novel method to generate propagation invariant shaped beams. Our method is based on a modified degenerate cavity (MDC) [1], [2], which has a huge number of degrees of freedom (300,000 modes in our system), that can be coupled and controlled. Specifically, the MDC allows direct access to both the x-space and k-space components of the laser beam. Accordingly, placing two amplitude masks, one in x-space and one in k-space, enables control of the output beam. Varying the geometric properties of the mask in x-space changes the shape of the output beam, and varying the geometric properties of the mask in k-space breaks the degeneracy between modes and forms spatial correlations (partial spatial coherence) in the output beam [1].
UR - http://www.scopus.com/inward/record.url?scp=85035086110&partnerID=8YFLogxK
U2 - https://doi.org/10.1364/FIO.2017.FM3B.3
DO - https://doi.org/10.1364/FIO.2017.FM3B.3
M3 - منشور من مؤتمر
SN - 9781943580330
T3 - Optics InfoBase Conference Papers
BT - Frontiers in Optics, FiO 2017
T2 - Frontiers in Optics, FiO 2017
Y2 - 18 September 2017 through 21 September 2017
ER -