Optical communications – Transmitter and receiver system – Including compensation
Reexamination Certificate
2011-07-05
2011-07-05
Bello, Agustin (Department: 2613)
Optical communications
Transmitter and receiver system
Including compensation
C398S158000, C398S161000
Reexamination Certificate
active
07974541
ABSTRACT:
A filter conducts the round trip by using the return optical signal that has been shifted in frequency, and measures the transmission optical signal and the return signal in phase by the principle of the Michelson interferometer at the same time, independently, and splits the two optical signals. A polarization state in which transmission and reception optical signals within an optical phase shifter which enters one route of the two optical signals are made orthogonal to each other is provided, to thereby distinguish the transmission and reception signals of the round trip from each other. The light is allowed to pass the shifter in incoming and returning to remove the polarization rotation of the shifter by using the reversibility of the light. Then, the phases of the transmission signal and the return signal are measured and synchronized with each other to conduct the transmission phase compensation.
REFERENCES:
patent: 3764213 (1973-10-01), O'Meara
patent: 4906092 (1990-03-01), O'Meara
patent: 5398130 (1995-03-01), Redman
patent: 5994687 (1999-11-01), Chanteloup et al.
patent: 6634811 (2003-10-01), Gertel et al.
patent: 7450245 (2008-11-01), Woods et al.
Bello Agustin
Birch & Stewart Kolasch & Birch, LLP
National Institutes of Natural Sciences
LandOfFree
High frequency signal optical transmission system and high... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High frequency signal optical transmission system and high..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High frequency signal optical transmission system and high... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2683610