Optical transmitter output monitoring tap
作者： John Kenneth Severn
DOI:
关键词:
摘要: An optical arrangement for full duplexed PON outstation transceivers (single fibber operation) which improves control of output power during marshalling by reducing the light level at closed loop can be used. The uses a beam-expanded region incorporating bulk-optics beam-splitter with reflective field stop that will tap higher proportion basestation transmitter when it is operating below lasing threshold and hence has larger beam size than above threshold.
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