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	Channel-switched tunable laser for DWDM communications
	DEACON, DAVID, A., G.
	2001-04-26
著作权人	SPARKOLOR CORPORATION
专利号	WO2001029937A2
国家	世界知识产权组织
文献子类	发明申请
其他题名	Channel-switched tunable laser for DWDM communications
英文摘要	Laser source (100) including materials (122, 124) with negative index of refraction dependence on temperature and with temperature independent coincidence between cavity modes and a set of specified frequencies such as DWDM channels in telecommunications applications. The free spectral range may be adjusted to equal a rational fraction of the specified frequency interval. The operating frequency may be defined by a frequency selective feedback element (130, 132) that is thermo-optically tuned by the application of heat from an actuator without substantially tuning the cavity modes. The operating frequency may be induced to hop digitally between the specified frequencies. In a particular embodiment, semiconductor amplifier (110) and polymer waveguide segments (122, 124) form a linear resonator with a thermo-optically tuned grating reflector (130, 132). In further embodiments (Figs. 9 and 10), an amplifier (916, 1016) and two waveguides from a tunable grating assisted coupler (930, 1030) form a ring resonator. Tuning may also be accomplished by means of applying an electric field (1122, 1124, 1126) across a liquid crystal portion (1142) of the waveguide structure (Fig. 11B) within the grating.
公开日期	2001-04-26
申请日期	2000-10-10
状态	未确认
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/65888]
专题	半导体激光器专利数据库
作者单位	SPARKOLOR CORPORATION
推荐引用方式 GB/T 7714	DEACON, DAVID, A., G.. Channel-switched tunable laser for DWDM communications. WO2001029937A2. 2001-04-26.

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