-
公开(公告)号：US20180039023A1
公开(公告)日：2018-02-08
申请号：US15226164
申请日：2016-08-02
发明人： Ho-Shang Lee , Min Chieh Lu , Yu-Sheng Yang , Chen-Wen Ho
CPC分类号： G02B6/262 , G02B6/266 , G02B6/2793 , G02B6/29397 , G02B6/29398
摘要： A pin hole or aperture is located or formed adjacent to the end surface of one or more of the input ports or fibers, or adjacent to one or more of the output ports or fibers, of a fiberoptic component. The aperture allows light to enter (or exit) the core of the associated fiber, and the non-transparent layer that surrounds the aperture blocks light from entering or exiting the cladding layer of the associated fiber. This blocking of the evanescent field in the cladding layer serves to reduce the polarization, wavelength, and temperature dependencies of the light coupling to the output port(s) or fiber(s) of the optical component. It can also reduce the passband width of the selected wavelength in tunable optical filter applications. The non-transparent layer surrounding the aperture can be made reflective, and light that is reflected by the non-transparent layer can be used for optical power monitoring.
-
公开(公告)号：US10598857B2
公开(公告)日：2020-03-24
申请号：US16225725
申请日：2018-12-19
发明人： Ho-Shang Lee , Min Chieh Lu , Yu-Sheng Yang , Chen-Wen Ho
摘要： A pin hole or aperture is located or formed adjacent to the end surface of one or more of the input ports or fibers, or adjacent to one or more of the output ports or fibers, of a fiberoptic component. The aperture allows light to enter (or exit) the core of the associated fiber, and the non-transparent layer that surrounds the aperture blocks light from entering or exiting the cladding layer of the associated fiber. This blocking of the evanescent field in the cladding layer serves to reduce the polarization, wavelength, and temperature dependencies of the light coupling to the output port(s) or fiber(s) of the optical component. It can also reduce the passband width of the selected wavelength in tunable optical filter applications. The non-transparent layer surrounding the aperture can be made reflective, and light that is reflected by the non-transparent layer can be used for optical power monitoring.
-
公开(公告)号：US09660681B1
公开(公告)日：2017-05-23
申请号：US14925719
申请日：2015-10-28
发明人： Ho-Shang Lee , Yu-Sheng Yang
CPC分类号： H04B1/38 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0018 , H04Q2011/0026 , H04Q2011/003
摘要： Light of at least two wavelengths is collimated in a forward path towards a reflector and light of at least one of the wavelengths is focused and detected in a return path, using in both paths a lens unit including a first convex surface and a second surface. A diffraction element diffracts the collimated light of the at least two wavelengths into different wavelength components. The reflector is moved so that one or more of the different wavelength components will be focused by the lens unit in the return path and detected. The second surface reflects the light of the at least two wavelengths from an input port towards the first convex surface and the first convex surface collimates the reflected light of the at least two wavelengths in the forward path, or the first convex surface focuses the one or more wavelength components towards the second surface that reflects the one or more wavelength components to an output port in the return path. The first convex surface can be replaced by a GRIN lens performing the focusing and collimating functions.
-
公开(公告)号：US20170127158A1
公开(公告)日：2017-05-04
申请号：US14925719
申请日：2015-10-28
发明人： Ho-Shang Lee , Yu-Sheng Yang
IPC分类号： H04Q11/00
CPC分类号： H04B1/38 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0018 , H04Q2011/0026 , H04Q2011/003
摘要： Light of at least two wavelengths is collimated in a forward path towards a reflector and light of at least one of the wavelengths is focused and detected in a return path, using in both paths a lens unit including a first convex surface and a second surface. A diffraction element diffracts the collimated light of the at least two wavelengths into different wavelength components. The reflector is moved so that one or more of the different wavelength components will be focused by the lens unit in the return path and detected. The second surface reflects the light of the at least two wavelengths from an input port towards the first convex surface and the first convex surface collimates the reflected light of the at least two wavelengths in the forward path, or the first convex surface focuses the one or more wavelength components towards the second surface that reflects the one or more wavelength components to an output port in the return path. The first convex surface can be replaced by a GRIN lens performing the focusing and collimating functions.
-
公开(公告)号：US20190146156A1
公开(公告)日：2019-05-16
申请号：US16225725
申请日：2018-12-19
发明人： Ho-Shang Lee , Min Chieh Lu , Yu-Sheng Yang , Chen-Wen Ho
CPC分类号： G02B6/262 , G02B6/266 , G02B6/2793 , G02B6/29397 , G02B6/29398
摘要： A pin hole or aperture is located or formed adjacent to the end surface of one or more of the input ports or fibers, or adjacent to one or more of the output ports or fibers, of a fiberoptic component. The aperture allows light to enter (or exit) the core of the associated fiber, and the non-transparent layer that surrounds the aperture blocks light from entering or exiting the cladding layer of the associated fiber. This blocking of the evanescent field in the cladding layer serves to reduce the polarization, wavelength, and temperature dependencies of the light coupling to the output port(s) or fiber(s) of the optical component. It can also reduce the passband width of the selected wavelength in tunable optical filter applications. The non-transparent layer surrounding the aperture can be made reflective, and light that is reflected by the non-transparent layer can be used for optical power monitoring.
-
-
-
-
搜索结果
5 条记录 (耗时 0.011 秒)
