| 359 / | HD | OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS |
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| 109 | DF | OPTICAL COMMUNICATION {13} |
| 154 |  | .~ Transmitter and receiver system {15} |
| 155 | DF | .~.~> Presence detection |
| 156 | DF | .~.~> With polarization |
| 157 | DF | .~.~> One transmitter, plural receivers |
| 158 | DF | .~.~> With synchronization |
| 159 | DF | .~.~> With alignment between transmitter and receiver |
| 160 | DF | .~.~> With pumping |
| 161 | DF | .~.~> With compensation |
| 162 | DF | .~.~> With electrical oscillator |
| 163 | DF | .~.~> With optical circuit board |
| 164 | DF | .~.~> Plural stations {3} |
| 168 | DF | .~.~> Passive system {1} |
| 170 | DF | .~.~> Retroreflection |
| 171 | DF | .~.~> Received signal supplies power distribution to diverse devices |
| 172 | DF | .~.~> Satellite communications |
| 173 | DF | .~.~> Including optical waveguide |