High-power solar-pumped Nd:YAG laser amplifier for free-space laser communication

Idit L. Pe'er; Nir Naftali; Amnon Yogev

doi:10.1117/12.279215

3 October 1997 High-power solar-pumped Nd:YAG laser amplifier for free-space laser communication

Idit L. Pe'er, Nir Naftali, Amnon Yogev

Proceedings Volume 3139, Nonimaging Optics: Maximum Efficiency Light Transfer IV; (1997) https://doi.org/10.1117/12.279215
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The wireless international communication these days faces a practical bandwidth limitation since the frequency band offered by satellites is almost exhausted. In addition, the energy source of a satellite is limited, hence, broadening the frequency domain in a wireless system increases the cost of operation. Free-space optical communication, using direct sun to laser conversion, can contribute to overcome these problems. A lab simulation for outer space solar laser communication was performed. A combination of imaging and non-imaging concentrators for pumping solar laser (oscillator and amplifier) were built and analyzed. An approximated 3D-CPC was designed, assembled and tested. The laser crystal characteristics were measured under the system's pumping conditions. An oscillator-amplifier system was designed built and analyzed. Direct and indirect gain measurements were done. Gain up to 1.4 was measured at a low sun flux of 630 w/m². Communication experiments at a boud rate of 1.5 MHz were conducted using intensity modulation outside the cavity.

Citation Download Citation

Idit L. Pe'er, Nir Naftali, and Amnon Yogev "High-power solar-pumped Nd:YAG laser amplifier for free-space laser communication", Proc. SPIE 3139, Nonimaging Optics: Maximum Efficiency Light Transfer IV, (3 October 1997); https://doi.org/10.1117/12.279215

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