DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Chang-Hee | ko |
dc.contributor.author | Shin, Sang-Yung | ko |
dc.contributor.author | Chu, Kwang Uk | ko |
dc.date.accessioned | 2022-12-13T05:01:43Z | - |
dc.date.available | 2022-12-13T05:01:43Z | - |
dc.identifier.uri | http://hdl.handle.net/10203/302911 | - |
dc.description.abstract | An apparatus and method for measuring optical signal-to-noise ratio in optical communications includes (1) a variable optical band-pass filter (VOBPF) that passes the amplified output beam when the beam wavelength is the same as the passing wavelength of the VOBPF; (2) a 1×4 beam distributor for distributing the passing beam of the VOBPF into four streams; (3) a measuring device for measuring Stokes parameters S0, S1, S2, S3 from the four distributed beams; (4) a calculating device for calculating the optical signal power by finding the power of the polarized component of the amplified output beam from the Stokes parameters S1, S2, and S3; (5) a calculating device for calculating the noise power by finding the power of the noise included in the amplified output beam from Stokes parameter S0 and the optical signal power; and (6) a dividing device for calculating the ratio Power 2003# of 2003# Optical 2003# Signal Power 2003# of 2003# Noise at the passing wavelength. | - |
dc.title | Apparatus and method for measuring optical signal-to-noise ratio | - |
dc.title.alternative | 광 신호 대 잡음 비율 측정 장치와 방법 | - |
dc.type | Patent | - |
dc.type.rims | PAT | - |
dc.contributor.localauthor | Lee, Chang-Hee | - |
dc.contributor.localauthor | Shin, Sang-Yung | - |
dc.contributor.assignee | KAIST | - |
dc.identifier.iprsType | 특허 | - |
dc.identifier.patentApplicationNumber | 09679822 | - |
dc.identifier.patentRegistrationNumber | 06671045 | - |
dc.date.application | 2000-10-05 | - |
dc.date.registration | 2003-12-30 | - |
dc.publisher.country | US | - |
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