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	OSNR monitor device and OSNR measurement device
	SHUKUNAMI, NORIFUMI; NAKAMURA, KENTARO; MIZUGUCHI, NORIAKI
	2010-12-22
著作权人	FUJITSU LIMITED
专利号	EP2264916A1
国家	欧洲专利局
文献子类	发明申请
其他题名	OSNR monitor device and OSNR measurement device
英文摘要	An optical signal-to-noise ratio (OSNR) monitor device includes an optical receiver including a delay interferometer, which divides a modulation signal in accordance with a given bandwidth and subjected to amplitude shift keying into two signals and causes the signals to interfere with each other, and optical detectors, which output currents in accordance with the optical signals output from the interferometer, and an amplifier that amplifies the currents output from the optical detectors so as to obtain predetermined current amounts; an optical power monitor configured to obtain the optical powers of the optical signals received by the optical detectors included in the optical receiver; and an OSNR calculator configured to calculate an optical signal-to-noise ratio in accordance with the optical powers obtained from the optical power monitor and a reception bandwidth.
公开日期	2010-12-22
申请日期	2010-06-17
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/62537]
专题	半导体激光器专利数据库
作者单位	FUJITSU LIMITED
推荐引用方式 GB/T 7714	SHUKUNAMI, NORIFUMI,NAKAMURA, KENTARO,MIZUGUCHI, NORIAKI. OSNR monitor device and OSNR measurement device. EP2264916A1. 2010-12-22.

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