Invention Grant
- Patent Title: Measurement apparatus of optical communication system
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Application No.: US17103450Application Date: 2020-11-24
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Publication No.: US11245468B2Publication Date: 2022-02-08
- Inventor: Hidenori Taga , Takehiro Tsuritani , Hidenori Takahashi
- Applicant: KDDI CORPORATION
- Applicant Address: JP Tokyo
- Assignee: KDDI CORPORATION
- Current Assignee: KDDI CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2018-153370 20180817,JPJP2019-026482 20190218
- Main IPC: H04B10/077
- IPC: H04B10/077 ; H04B10/07 ; H04B10/079

Abstract:
A measurement apparatus includes: a light source unit configured to generate optical signals of, from among n+1 frequencies (n is an integer of 3 or larger) at a predetermined frequency interval, n frequencies except for a target frequency, and output the generated optical signals to an optical transmission path that is a measurement target; an optical power measurement device configured to measure of an optical signal of the target frequency output from the optical transmission path and generated in the optical transmission path as a result of four-wave-mixing of the optical signals of the n frequencies; and a processor configured to determine a power spectrum density of non-linear interference noise that occurs in the optical transmission path, by multiplying the power of the optical signal of the target frequency by an adjustment value.
Public/Granted literature
- US20210105067A1 MEASUREMENT APPARATUS OF OPTICAL COMMUNICATION SYSTEM Public/Granted day:2021-04-08
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