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	Acoustically tuned bragg gratings for dispersion compensation
	SHU XUEWEN; SUGDEN CATHERINE ANNE; BENNION IAN
	2006-09-14
著作权人	ASTON UNIVERSITY
专利号	WO2006072759A3
国家	世界知识产权组织
文献子类	发明申请
其他题名	Acoustically tuned bragg gratings for dispersion compensation
英文摘要	A Gires-Tournois etalon (GTE) (10) comprising an optical fibre (12) in which a primary chirped fibre Bragg grating (FBG) (16) is provided, an RF signal generator (20), a piezoelectric transducer (22), and a glass horn (24), for coupling an acoustic wave (26) into the fibre (12). The acoustic wave (26) causes a periodic compression within the fibre (12), which induces a low frequency periodic refractive index modulation within the grating section (14) of the fibre (12). This causes two side frequency components to be generated for each high-frequency component of the FBG (16). Two secondary grating are thus excited, having the same spectral bandwidth as the FBG (16), but a lower reflectivity and different central wavelengths. The free spectral range of the GTE (10) can be adjusted by varying the frequency of the acoustic wave (26). The reflectivity of the excited secondary gratings can be adjusted by adjusting the amplitude of the acoustic wave (26).
公开日期	2006-09-14
申请日期	2005-12-15
状态	未确认
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/53755]
专题	半导体激光器专利数据库
作者单位	ASTON UNIVERSITY
推荐引用方式 GB/T 7714	SHU XUEWEN,SUGDEN CATHERINE ANNE,BENNION IAN. Acoustically tuned bragg gratings for dispersion compensation. WO2006072759A3. 2006-09-14.

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