Vertical metallically loaded polarization splitter and polarization-diversified optical receiver
Номер патента: CA2109223C
Опубликовано: 18-02-1997
Автор(ы): Robert Joseph Deri
Принадлежит: Bell Communications Research Inc
Опубликовано: 18-02-1997
Автор(ы): Robert Joseph Deri
Принадлежит: Bell Communications Research Inc
Реферат: A polarization diversity receiver (30) comprising a lower optical waveguide (34) and an upper waveguide (36) formed there-over in the area of the receiver. A rib (32) formed in the lower waveguide away from the receiver directs light along an optical axis in the receiver. A metal layer (40) deposited over the upper waveguide preferentially couples light of the TE-mode from the lower to the upper waveguide, where it is detected by a p-i-n photo-diode (42). A second p-i-n photo-diode (46) is formed on the optical axis a distance away from the first photo-diode. The intervening region (44) acts as a coupling region to couple the remaining TM-mode radiation from the lower to the upper waveguide, where it is detected by the second photo-diode.
Discrete bootstrapping in an optical receiver to prevent signal feedback
Номер патента: MY157744A. Автор: Douma Darrin James. Владелец: Finisar Corp. Дата публикации: 2016-07-15.