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	Frequency stabilized laser with electronic tunable external cavity
	OSTERWALDER, JOHANN M.
	1995-01-24
著作权人	LOCKHEED MARTIN CORPORATION
专利号	US5384799
国家	美国
文献子类	授权发明
其他题名	Frequency stabilized laser with electronic tunable external cavity
英文摘要	Method and arrangement for locking a laser to an external cavity that is electronically tunable to provide an optical source that is highly coherent and which is frequency stabilized over a variable frequency range. Preferably, an injection laser is tightly coupled to an external acousto-optic cavity having a reflective mirror on its back facet and carried on an electro-optic crystal substrate. A transducer is coupled to the external cavity and converts an electrical sinusoidal input signal into an acoustic wave which travels along the electro-optic crystal substrate to modulate the refractive index of the material along the optical waveguide. The periodicity of the refractive index along the waveguide is accordingly determined to be equal to one half wavelength of the acoustic frequency propagating in the waveguide which locks the laser at a particular optical frequency determined by the refractive index profile. The arrangement is particularly desirable for frequency division multiplexing applications.
公开日期	1995-01-24
申请日期	1993-09-09
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/47700]
专题	半导体激光器专利数据库
作者单位	LOCKHEED MARTIN CORPORATION
推荐引用方式 GB/T 7714	OSTERWALDER, JOHANN M.. Frequency stabilized laser with electronic tunable external cavity. US5384799. 1995-01-24.

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