Passive optical telecommunication system employing multiple wavelength source and plural power splitting stages
Номер патента: CA2227250A1
Опубликовано: 11-08-1998
Автор(ы): Edward Eric Harstead, Jason Blain Stark, Martin C. Nuss, Wayne Harvey Knox
Принадлежит: Lucent Technologies Inc
Опубликовано: 11-08-1998
Автор(ы): Edward Eric Harstead, Jason Blain Stark, Martin C. Nuss, Wayne Harvey Knox
Принадлежит: Lucent Technologies Inc
Реферат: A unique time slot is assigned to each of a plurality of wavelengths emitted by a single, centralized wavelength division multiplexed optical source to provide a "bit interleaved" WDM signal. In accordance with an illustrative embodiment of the present invention, the thus-developed bit-interleaved WDM signal is replicated in cascaded stages of amplification and power splitting before data is encoded for respective frequency dependent receivers as, for example, a plurality of passive optical networks. Because the output of the optical source need not be encoded with data for the respective receivers until after many stages of splitting and amplification, a small number of time division multiplexing (TDM) modulators synchronized to the source may be used to deliver data to potentially tens of thousands of subscribers.
Hybrid multiplexing over passive optical networks
Номер патента: US09762349B1. Автор: Yuxin DAI. Владелец: Cox Communications Inc. Дата публикации: 2017-09-12.