Optical multiplexer/demultiplexer
An optical multiplexer/demultiplexer with an improved spectral characteristic is provided by two diffraction gratings (21, 20) arranged optically in tandem and one being configured to embrace the other, the gratings also being arranged to provide free spectral ranges differing by a factor of at leas...
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| Format: | Patent |
| Sprache: | eng |
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