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公开(公告)号：CA2795227C
公开(公告)日：2019-06-25
申请号：CA2795227
申请日：2011-04-07
Applicant: KOTURA INC
Inventor： FENG DAZENG , QIAN WEI , ASGHARI MEHDI
Abstract: An optical device includes a light-transmitting medium positioned on a base. The light-transmitting medium at least partially defines a free propagation region through which light signals travel. A reflective grating includes stepped reflecting surfaces positioned such that light signals that travel through the free propagation region are received by the reflecting surfaces. The reflecting surfaces are configured to reflect the light signal back into the free propagation region such that the light signals associated with different wavelengths separate as the light signals travel through the free propagation region. At least a portion of the reflecting surfaces each includes an overtapping region. Additionally, at least a portion of the reflecting surfaces each includes an overlapped region and un un-overlapped region. The reflecting grating is configured such that the light signals travel toward the overlapped regions and the un-overlapped regions before being reflected
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公开(公告)号：CA2831693C
公开(公告)日：2019-02-12
申请号：CA2831693
申请日：2012-03-22
Applicant: KOTURA INC
Inventor： FENG DAZENG , QIAN WEI
Abstract: The device includes a main waveguide on a base. The main waveguide is configured to guide a light signal through a light-transmitting medium. The device also includes multiple transition waveguides on the base. Each of the transition waveguide intersects a terminal end of the main waveguide such that each transition waveguide receives a different portion of the light signal from the main waveguide. The device also includes one or more light sensors positioned on the base. Each transition waveguide guides the received light portions to the one or more light sensors such that each of the light signal portions is received at the one or more light sensors.
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Patent Agency Ranking
公开(公告)号：CA2795227A1
公开(公告)日：2011-12-01
申请号：CA2795227
申请日：2011-04-07
Applicant: KOTURA INC
Inventor： FENG DAZENG , QIAN WEI , ASGHARI MEHDI
Abstract: An optical device includes a light-transmitting medium positioned on a base. The light-transmitting medium at least partially defines a free propagation region through which light signals travel. A reflective grating includes stepped reflecting surfaces positioned such that light signals that travel through the free propagation region are received by the reflecting surfaces. The reflecting surfaces are configured to reflect the light signal back into the free propagation region such that the light signals associated with different wavelengths separate as the light signals travel through the free propagation region. At least a portion of the reflecting surfaces each includes an overtapping region. Additionally, at least a portion of the reflecting surfaces each includes an overlapped region and un un-overlapped region. The reflecting grating is configured such that the light signals travel toward the overlapped regions and the un-overlapped regions before being reflected
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公开(公告)号：CA2781505A1
公开(公告)日：2011-06-30
申请号：CA2781505
申请日：2010-11-17
Applicant: KOTURA INC
Inventor： FENG DAZENG , ASGHARI MEHDI , QIAN WEI , KUNG CHENG-CHIH , FONG JOAN
IPC: G02B6/34
Abstract: An optical device includes a light-transmitting medium on a base. The light-transmitting medium at least partially defines a free propagation region through which light signals travel. A reflective grating is positioned such that light signals can travel through the free propagation region and be received by the optical grating. The optical grating is configured to reflect the received light signal back into the free propagation region. The optical grating reflects the light signals such that light signals associated with different wavelengths separate as the light signals travel through the free propagation region. The portion of the light-transmitting medium that defines the free propagation region has a facet through with the light signals are transmitted. The grating includes a buffer layer between the facet and a reflecting layer that is configured to reflect the light signals received by the grating.
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公开(公告)号：CA2781505C
公开(公告)日：2017-03-07
申请号：CA2781505
申请日：2010-11-17
Applicant: KOTURA INC
Inventor： FENG DAZENG , ASGHARI MEHDI , QIAN WEI , KUNG CHENG-CHIH , FONG JOAN
IPC: G02B6/124
Abstract: An optical device includes a light-transmitting medium on a base. The light-transmitting medium at least partially defines a free propagation region through which light signals travel. A reflective grating is positioned such that light signals can travel through the free propagation region and be received by the optical grating. The optical grating is configured to reflect the received light signal back into the free propagation region. The optical grating reflects the light signals such that light signals associated with different wavelengths separate as the light signals travel through the free propagation region. The portion of the light-transmitting medium that defines the free propagation region has a facet through with the light signals are transmitted. The grating includes a buffer layer between the facet and a reflecting layer that is configured to reflect the light signals received by the grating.
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公开(公告)号：CA2831693A1
公开(公告)日：2012-10-18
申请号：CA2831693
申请日：2012-03-22
Applicant: KOTURA INC
Inventor： FENG DAZENG , QIAN WEI
IPC: G02B6/26
Abstract: The device includes a main waveguide on a base. The main waveguide is configured to guide a light signal through a light-transmitting medium. The device also includes multiple transition waveguides on the base. Each of the transition waveguide intersects a terminal end of the main waveguide such that each transition waveguide receives a different portion of the light signal from the main waveguide. The device also includes one or more light sensors positioned on the base. Each transition waveguide guides the received light portions to the one or more light sensors such that each of the light signal portions is received at the one or more light sensors.
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公开(公告)号：EP2572220A4
公开(公告)日：2014-01-22
申请号：EP11787004
申请日：2011-04-07
Applicant: KOTURA INC
Inventor： FENG DAZENG , QIAN WEI , ASGHARI MEHDI
CPC classification number: G02B5/1861 , G02B6/12007 , G02B6/29326 , G02B6/29328 , G02B2006/12107
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