Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2005-06-01
2008-09-30
Li, Shi K (Department: 2613)
Optical communications
Diagnostic testing
Determination of communication parameter
Reexamination Certificate
active
07430372
ABSTRACT:
An optical transmission system is provided which is capable of booting the system by using an ASE (Amplified Spontaneous Emission) light in a manner to provide high quality. A pre-amplifier receives noise light and does gain setting in an amplifier booting mode and receives an optical signal and to amplify the received signal in a working mode. A variable dispersion compensator is placed in a preceding-stage of the pre-amplifier and makes compensation of dispersion of a wavelength occurring when an optical signal propagates through an optical fiber in a variable manner. A switching unit to select, when the noise light passes through the variable dispersion compensator, if a level of the noise light is deviated from a desired level, a bypass route so as to make the noise light not be input to the variable dispersion compensator but be input to the pre-amplifier in an amplifier booting mode according to a switching instruction and to select a passage route so as to make the optical signal, after having been input to the variable dispersion compensator and having undergone dispersion compensation, be input to the pre-amplifier according to the switching instruction in a working mode.
REFERENCES:
patent: 6832020 (2004-12-01), Okada et al.
patent: 7002734 (2006-02-01), Horachi et al.
patent: 7330651 (2008-02-01), Yamashita
patent: 2003/0231376 (2003-12-01), Horachi et al.
patent: WO 98/35259 (1998-08-01), None
Murakami Yuki
Ojima Hisayuki
Suematsu Mamoru
Sugiya Hideaki
Tanaka Haruki
Fujitsu Limited
Li Shi K
Staas & Halsey , LLP
LandOfFree
Optical transmission system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical transmission system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical transmission system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3985642