Abstract
A solid-state laser source with flat-top wide beam profile was designed and made. The laser source was mainly made up of an Nd:YAG solid-state laser at 1064 nm and a maximum 267 × collimating telescope. A 2 W laser diode (LD) pumped Nd:YAG laser with flat-concave cavity was adopted as the primary laser source at 1064 nm. Then the output laser (1064 nm) was injected into a collimating telescope. We designed three schemes according to spherical wave theory and chose the best one based on our experiments. We found out the spherical aberration (including axial and off-axial points) must be corrected. At last, an output laser beam with 80 mm diameter, 0.4 mrad divergence angle, > 50 mW output power, and ±10% intensity distribution of cross section, was obtained.
Original language | English |
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Pages (from-to) | 331-334 |
Number of pages | 4 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 4914 |
DOIs | |
State | Published - 2002 |
Externally published | Yes |
Event | high-Power Lasers and Applications II - Shanghai, China Duration: 15 Oct 2002 → 18 Oct 2002 |
Keywords
- All solid-state laser
- Flat-top
- Gaussian beam
- Spherical aberration