External cavity tunable compact mid-IR laser

OPT OpenIR > 半导体激光器专利数据库

	External cavity tunable compact mid-IR laser
其他题名	External cavity tunable compact mid-IR laser
	DAY, TIMOTHY; ARNONE, DAVID F.
	2008-04-30
专利权人	DAYLIGHT SOLUTIONS
公开日期	2008-04-30
授权国家	欧洲专利局
专利类型	发明申请
摘要	A compact mid-IR laser device utilizes an external cavity to tune the laser. The external cavity may employ a Littrow or Littman cavity arrangement. In the Littrow cavity arrangement, a filter, such as a grating, is rotated to provide wavelength gain medium selectivity In the Littman cavity arrangement, a reflector is rotated to provide tuning. A quantum cascade laser gain medium provides mid-IR frequencies suitable for use in molecular detection by signature absorption spectra. The compact nature of the device is obtained owing to an efficient heat transfer structure, the use of a small diameter aspheric lens for both the output lens and the external cavity lens and a monolithic assembly structure to hold the optical elements in a fixed position relative to one another. Efficient heat transfer is achieved using a thermo-electric cooler combined with a heat spreader onto which the quantum cascade laser gain medium is thermally coupled.
其他摘要	紧凑的中红外激光器件利用外腔来调谐激光器。外腔可以采用Littrow或Littman腔布置。在Littrow腔布置中，旋转诸如光栅的滤波器以提供波长增益介质选择性。在Littman腔布置中，旋转反射器以提供调谐。量子级联激光增益介质提供适合用于通过特征吸收光谱进行分子检测的中红外频率。由于有效的传热结构，使用小直径非球面透镜用于输出透镜和外腔透镜以及单片组装结构以将光学元件保持在相对于固定位置的固定位置，因此获得了装置的紧凑特性。另一个。使用与散热器结合的热电冷却器实现有效的热传递，量子级联激光增益介质热耦合在散热器上。
主权项	1) A tunable mid-IR laser device comprising: a housing; a thermo electric cooling device; a heat spreader thermally coupled to a cooling surface of said thermo electric cooling device; a quantum cascade gain medium affixed to said heat spreader; an output lens affixed to said heat spreader and sharing an optic axis with said quantum cascade gain medium; a wavelength filter having a support affixed to said heat spreader, said wavelength filter arranged to return optical radiation of a selected wavelength to said quantum cascade gain medium; and a filter lens disposed between said quantum cascade gain medium and said filter for collimating light; wherein said heat spreader is an optical platform to position said quantum cascade gain medium, said output lens, said filter lens, and said filter relative to one another.
申请日期	2006-08-01
专利号	EP1915804A2
专利状态	失效
申请号	EP2006851421
公开（公告）号	EP1915804A2
IPC 分类号	H01S3/30 \| H01S3/04 \| H01S3/08 \| H01S5/022 \| H01S5/02 \| H01S5/024 \| H01S5/042 \| H01S5/062 \| H01S5/14
专利代理人	-
代理机构	VIERING, JENTSCHURA & PARTNER
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/53826
专题	半导体激光器专利数据库
作者单位	DAYLIGHT SOLUTIONS
推荐引用方式 GB/T 7714	DAY, TIMOTHY,ARNONE, DAVID F.. External cavity tunable compact mid-IR laser. EP1915804A2[P]. 2008-04-30.