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	Wavelength variable laser light source
	TSUDA HIROYUKI; KUROKAWA TAKASHI; HIRABAYASHI KATSUHIKO; NOTOMI MASAYA
	1992-05-15
著作权人	NIPPON TELEGR & TELEPH CORP
专利号	JP1992142090A
国家	日本
文献子类	发明申请
其他题名	Wavelength variable laser light source
英文摘要	PURPOSE:To obtain a wavelength variable laser light source which can be driven by a low voltage, stably operated, facilitated in reduction in size and weight, swept in a wide wavelength range at a high speed and suppressed in a mode hopping by employing a variable wavelength filter between a lens and a mirror. CONSTITUTION:A laser diode chip 101 with a reflective coating on one emission end face; a lens 102 for colimating light from the coated side; a variable wavelength filter 103 of a laminate structure including a glass board, a transparent electrode, a high reflection mirror, an oriented film, a liquid crystal, an oriented film, a high reflection mirror, a transparent electrode and a glass board; and a convex or plain mirror 104 are sequentially disposed in the direction of the light irradiation. The filter 103 is inclined from an axial perpendicular to an optical axis. Thus, a mechanically movable section is eliminated. A wavelength variable laser light source which can be stably driven with a low voltage, swept in a wide wavelength range at a high speed, suppressed in a hopping mode and reduced in size and weight, is obtained.
公开日期	1992-05-15
申请日期	1990-10-03
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/89276]
专题	半导体激光器专利数据库
作者单位	NIPPON TELEGR & TELEPH CORP
推荐引用方式 GB/T 7714	TSUDA HIROYUKI,KUROKAWA TAKASHI,HIRABAYASHI KATSUHIKO,et al. Wavelength variable laser light source. JP1992142090A. 1992-05-15.

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