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1. 发明申请

WO1997010525A1 PASSBAND FLATTENING OF INTEGRATED OPTICAL FILTERS 审中-公开
标题翻译：一体化光学滤波器的通带平滑
公开(公告)号：WO1997010525A1
公开(公告)日：1997-03-20
申请号：PCT/US1996012745
申请日：1996-08-07
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： BELL COMMUNICATIONS RESEARCH, INC. , AMERSFOORT, Martin, Ronald , SOOLE, Julian, Bernard, Donald
IPC分类号： G02B06/26
CPC分类号： G02B6/12016 , G02B6/12021 , G02B6/2813
摘要： An optical filter, such as a wavelength-division multiplexer, demultiplexer, or optical router, in which several single-mode waveguides are coupled to the sides of an optical interaction region containing a wavelength dispersive element that collects light from one or more input waveguides inputting light to the interaction region and disperses it according to wavelength to one or more output waveguides outputting wavelength-separated light. According to the invention, a multi-moded waveguide (42) is interposed between one or more of the single-moded waveguides (40) and the optical interaction region (54). It has a predetermined length to create at one end a multiply peaked image of a singly peaked profile presented to it at the other end, thus being a multi-moded interference (MMI) filter that presents a flatter filter profile at the interface between the MMI and the optical interaction region and affords reduced filter sensitivity to wavelength drift of an optical signal.
摘要翻译：诸如波分多路复用器，解复用器或光路由器的光学滤波器，其中几个单模波导耦合到光学相互作用区域的侧面，该光学相互作用区域包含从一个或多个输入波导输入的收集光的波长色散元件照射到相互作用区域并根据波长将其分散到输出波长分离的光的一个或多个输出波导。根据本发明，多模波导（42）插入在一个或多个单模波导（40）和光学相互作用区域（54）之间。它具有预定的长度以在一端产生在另一端呈现给它的单峰分布的多峰峰值图像，因此是多模干涉（MMI）滤波器，其在MMI之间的界面处呈现较平坦的滤波器轮廓和光学相互作用区域，并且对光信号的波长漂移提供降低的滤波器灵敏度。

2. 发明申请

WO1996030787A1 BIREFRINGENCE-FREE SEMICONDUCTOR WAVEGUIDE 审中-公开
公开(公告)号：WO1996030787A1
公开(公告)日：1996-10-03
申请号：PCT/US1996002925
申请日：1996-03-04
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： BELL COMMUNICATIONS RESEARCH, INC. , CANEAU, Catherine, Genevieve , SONG, Ghie, Hugh , SOOLE, Julian, Bernard, Donald
IPC分类号： G02B06/00
CPC分类号： B82Y20/00 , G02B6/105 , G02B2006/12116 , G02F1/01708 , G02F1/025 , G02F2001/01766 , H01S5/3404
摘要： A birefringence-free semiconductor waveguide comprising on a substrate (10) a plurality of layers (18) some of which (62) are in tensile strain with respect to the substrate and others of which (64) are in compressive strain. Birefringent-free behavior with respect to a guided light signal traveling in the waveguiding structure and possessing a photon energy lower than the bandgap of the constituent waveguide layers is obtained when birefringence introduced into the individual layers of the waveguiding structure by the strain is sufficient to compensate for the intrinsic geometric modal birefringence of the waveguiding structure that exists in the case where all layers are not strained. This is achieved through the introduction of a predetermined amount of tensile strain and a predetermined amount of compressive strain into one or more layers. In this manner, waveguiding structures that are substantially free of modal birefringence may be obtained to avoid any strain-induced defects.
摘要翻译：一种双折射半导体波导，其包括在基底（10）上的多个层（18），其中一些层（62）相对于基底具有拉伸应变，而其它层（64）处于压缩应变。当通过应变引入到波导结构的各个层中的双折射足以补偿时，获得相对于在波导结构中行进并且具有低于组成波导层的带隙的光子能量的引导光信号的双折射行为对于在所有层不应变的情况下存在的波导结构的固有几何模态双折射。这通过将预定量的拉伸应变和预定量的压缩应变引入一个或多个层来实现。以这种方式，可以获得基本上没有模态双折射的波导结构，以避免任何应变诱发的缺陷。

3. 发明申请

WO1994006181A1 MULTI-STRIPE ARRAY GRATING INTEGRATED CAVITY LASER 审中-公开
标题翻译：多条纹阵列集成孔穴激光
公开(公告)号：WO1994006181A1
公开(公告)日：1994-03-17
申请号：PCT/US1993008444
申请日：1993-09-09
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： BELL COMMUNICATIONS RESEARCH, INC. , POGUNTKE, Kai, Ralph , SOOLE, Julian, Bernard, Donald
IPC分类号： H01S03/08
CPC分类号： G02B6/12007 , G01J3/20 , H01S3/08086 , H01S5/026 , H01S5/141 , H01S5/4062 , H01S5/4087
摘要： An integrated, multi-wavelength laser having formed on a substrate (12) a plurality of active, individually selectable waveguides (14), a passive output waveguide (16), and a diffraction grating (18) formed in a Rowland-circle spectrometer geometry. The frequency of the lasing light is determined by the geometrical relationship of the selected active waveguide, the diffraction grating, and the output waveguide. The active waveguides are positioned such that lasing light cannot diffract between two active waveguides. Little crosstalk occurs because no carrier depletion occurs in the output waveguide.
摘要翻译：一种集成的多波长激光器，其形成在基板（12）上，多个有源单独可选择的波导（14），无源输出波导（16）和衍射光栅（18），其形成为罗兰圆光谱仪几何形状。激光的频率由所选择的有源波导，衍射光栅和输出波导的几何关系决定。有源波导被定位成使得激光不能在两个有源波导之间衍射。由于在输出波导中没有发生载流子耗尽，所以发生小的串扰。

4. 发明公开

EP0663109A1 MULTI-STRIPE ARRAY GRATING INTEGRATED CAVITY LASER 失效
标题翻译：具有集成衍射若干条状多个激光谐振器。
公开(公告)号：EP0663109A1
公开(公告)日：1995-07-19
申请号：EP93921420.0
申请日：1993-09-09
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： POGUNTKE, Kai, Ralph , SOOLE, Julian, Bernard, Donald
IPC分类号： H01S3 , G02B6 , H01S5 , G01J3
CPC分类号： G02B6/12007 , G01J3/20 , H01S3/08086 , H01S5/026 , H01S5/141 , H01S5/4062 , H01S5/4087
摘要： An integrated, multi-wavelength laser having formed on a substrate (12) a plurality of active, individually selectable waveguides (14), a passive output waveguide (16), and a diffraction grating (18) formed in a Rowland-circle spectrometer geometry. The frequency of the lasing light is determined by the geometrical relationship of the selected active waveguide, the diffraction grating, and the output waveguide. The active waveguides are positioned such that lasing light cannot diffract between two active waveguides. Little crosstalk occurs because no carrier depletion occurs in the output waveguide.

5. 发明公开

EP0873530A1 BIREFRINGENCE-FREE SEMICONDUCTOR WAVEGUIDE 失效
标题翻译：半导体光纤双折射无
公开(公告)号：EP0873530A1
公开(公告)日：1998-10-28
申请号：EP96909566.0
申请日：1996-03-04
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： CANEAU, Catherine, Genevieve , SONG, Ghie, Hugh, Kwangju Institute of Science , SOOLE, Julian, Bernard, Donald
IPC分类号： G02B6 , G02F1 , H01S5
CPC分类号： B82Y20/00 , G02B6/105 , G02B2006/12116 , G02F1/01708 , G02F1/025 , G02F2001/01766 , H01S5/3404
摘要： A birefringence-free semiconductor waveguide comprising on a substrate (10) a plurality of layers (18) some of which (62) are in tensile strain with respect to the substrate and others of which (64) are in compressive strain. Birefringent-free behavior with respect to a guided light signal traveling in the waveguiding structure and possessing a photon energy lower than the bandgap of the constituent waveguide layers is obtained when birefringence introduced into the individual layers of the waveguiding structure by the strain is sufficient to compensate for the intrinsic geometric modal birefringence of the waveguiding structure that exists in the case where all layers are not strained. This is achieved through the introduction of a predetermined amount of tensile strain and a predetermined amount of compressive strain into one or more layers. In this manner, waveguiding structures that are substantially free of modal birefringence may be obtained to avoid any strain-induced defects.

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