Coherent light generators – Particular active media
Patent
1997-09-16
2000-02-22
Scott, Jr., Leon
Coherent light generators
Particular active media
372 41, H01S 314
Patent
active
060288736
ABSTRACT:
Two mirrors comprising a resonator, arranged facing to each other interpose an EIT layer, which is a solid containing an impurity. A controlling light from a controlling light source and a pumping light from a pumping light source enter the EIT layer. A photodiode detects the intensity of an LWI laser light (a signal light outputted from the EIT layer) outputted from one of the mirrors. A filter for cutting the controlling light is provided between the photodiode and the mirror. Two kinds of lights, that is, the controlling light and the pumping light are used in all the .LAMBDA., V, .XI. type three levels. In the .LAMBDA. type three levels, the controlling light is used for supposedly exciting between the levels, and the pumping light is used for pumping electrons from the level to the level via the level. In the V type three levels, the controlling light is used for exciting between the levels, and the pumping light is used for pumping electrons from the level to the level via the level. In the .XI. type three levels, the controlling light is used for supposedly exciting between the levels, and the pumping light is used for pumping electrons from the level to the level via the level.
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Gemma Nobuhiro
Ichimura Kouichi
Yamamoto Kazushige
Jr. Leon Scott
Kabushiki Kaisha Toshiba
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