发明授权
- 专利标题: Laser light source
- 专利标题(中): 激光光源
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申请号: US14951220申请日: 2015-11-24
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公开(公告)号: US09559497B2公开(公告)日: 2017-01-31
- 发明人: Alfred Lell , Christoph Eichler , Wolfgang Schmid , Soenke Tautz , Wolfgang Reill , Dimitri Dini
- 申请人: OSRAM OPTO SEMICONDUCTORS GMBH
- 申请人地址: DE Regensburg
- 专利权人: OSRAM Opto Semiconductors GmbH
- 当前专利权人: OSRAM Opto Semiconductors GmbH
- 当前专利权人地址: DE Regensburg
- 代理机构: Cozen O'Connor
- 优先权: DE102007061923 20071221; DE102008012859 20080306
- 主分类号: H01S5/00
- IPC分类号: H01S5/00 ; H01S5/10 ; H01S5/028 ; H01S5/22
摘要:
A laser light source, comprising a semiconductor layer sequence having an active region and a radiation coupling out area having first and second partial regions, and a filter structure. The active region generates coherent first electromagnetic radiation and incoherent second electromagnetic radiation. The coherent first electromagnetic radiation is emitted by the first partial region along an emission direction, and the incoherent second electromagnetic radiation is emitted by the first partial region and by the second partial region. The filter structure at least partly attenuates the incoherent second electromagnetic radiation emitted along the emission direction. The filter structure has at least one filter element arranged on an area of the semiconductor layer sequence which has an extension direction parallel to the emission direction. The at least one filter element comprises a surface structure comprising a roughening and/or at least one layer comprising a non-transparent material.
公开/授权文献
- US20160079734A1 Laser Light Source 公开/授权日:2016-03-17
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