| Autor: |
Brewer, Christopher D., Powers, Peter E., Kirkpatrick, Sean M., Watson, Edward A. |
| Zdroj: |
Applied Optics; July 2002, Vol. 41 Issue: 21 p4411-4415, 5p |
| Abstrakt: |
The return signal frequency of an eye-safe ladar system is upconverted from the infrared to the visible through sum-frequency generation by incorporation of periodically poled LiNbO_3 into the receiver. A quantitative analysis of the angular acceptance and the quantum efficiency is then presented for a single macroscopic receiver optic and a multiaperture microlens array. Comparing both results, a 6× increase in the receiver field of regard and an 18% increase in beam coupling were realized for the microlens design over the macroscopic system. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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