-
公开(公告)号：US07593446B2
公开(公告)日：2009-09-22
申请号：US12117053
申请日：2008-05-08
Applicant: Mathieu Carras , Alfredo De Rossi
Inventor： Mathieu Carras , Alfredo De Rossi
IPC: H01S5/00
CPC classification number: H01S5/12 , H01S5/0654 , H01S5/1218 , H01S5/1231
Abstract: The present invention relates to the field of distributed feedback semiconductor lasers. More specifically, the invention makes it possible to develop single-mode distributed feedback lasers with a production rate close to 100% using a simple and robust technology. To this end, the invention involves introducing radiative losses on just one of the two predominant modes of a DFB laser obtained by index modulation by defining a particular refractive index profile of the active area.
Abstract translation: 本发明涉及分布反馈半导体激光器领域。 更具体地，本发明使得可以使用简单和鲁棒的技术开发生产率接近100％的单模分布反馈激光器。 为此，本发明涉及通过限定有效区域的特定折射率分布，通过索引调制获得的DFB激光器的两种主要模式之一引入辐射损耗。
-
公开(公告)号：US07567606B2
公开(公告)日：2009-07-28
申请号：US12117780
申请日：2008-05-09
Applicant: Mathieu Carras , Alfredo De Rossi
Inventor： Mathieu Carras , Alfredo De Rossi
IPC: H01S5/00
CPC classification number: H01S5/1228
Abstract: The present invention relates to a strong distributed feedback semiconductor laser. More specifically, the invention implements a top optical waveguide (2) for semiconductor lasers having a surface metallic grating (5) making it possible to obtain a stable and controlled distributed feedback, using a simple and robust technology. In the inventive laser, which comprises an active area (1) having an effective refractive index (neff) in which a light wave is propagated with a wavelength (λ), the top waveguide (2) is made of a weakly-doped material and the periodic grating (5) depth (p) is [ λ 4 × neff ] plus or minus 50%, the low precision needed being one of the advantages of the inventive laser.
Abstract translation: 本发明涉及强分布反馈半导体激光器。 更具体地，本发明实现了具有表面金属光栅（5）的半导体激光器的顶部光波导（2），使得可以使用简单且鲁棒的技术获得稳定和受控的分布式反馈。 在本发明的激光器中，其中包括有效折射率（neff）的有效区域（1），其中以波长（λ）传播光波，顶部波导管（2）由弱掺杂材料制成， 周期性光栅（5）深度（p）为
-
Search Results
12
records
(took 0.009 seconds)
