Laser beam deflection by frequency shifting
Abstract
A new type of beam scanner has been developed which utilizes frequency shifting of a laser beam followed by deflection of the beam in a dispersive element. Theoretical considerations involve the maximization of the frequency shift and number of resolvable spots. An experimental deflector has been constructed which employs a mode-locked 0.633 μm He-Ne laser, lithium-niobate frequency shifter, and a Fabry-Perot dispersion element. Scans of 15 resolvable spots have been obtained with a theoretical access time of 18.5 ns.
- Publication:
-
Optics Communications
- Pub Date:
- February 1975
- DOI:
- 10.1016/0030-4018(75)90023-1
- Bibcode:
- 1975OptCo..13..117W
- Keywords:
-
- Deflection;
- Frequency Shift;
- Laser Mode Locking;
- Light Beams;
- Optical Scanners;
- Acousto-Optics;
- Helium-Neon Lasers;
- Optical Paths;
- Wave Dispersion;
- Lasers and Masers