Invention Grant
- Patent Title: Silicon-based polarization beam splitter
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Application No.: US16274826Application Date: 2019-02-13
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Publication No.: US11333830B2Publication Date: 2022-05-17
- Inventor: Jie Lin
- Applicant: INPHI CORPORATION
- Applicant Address: US CA Santa Clara
- Assignee: INPHI CORPORATION
- Current Assignee: INPHI CORPORATION
- Current Assignee Address: US CA Santa Clara
- Main IPC: G02B6/24
- IPC: G02B6/24 ; G02B6/27 ; G02B27/28

Abstract:
The present application discloses a polarization beam splitter (PBS). The PBS includes a silicon substrate and a planar structure formed thereon characterized by an isosceles trapezoid shape with a first parallel side and a second parallel side connected by two tapered sides. The first parallel side has longer width than the second parallel side, both of which is separated by a length no greater than 100 μm along a line of symmetry bisecting the pair of parallel sides. The PBS further includes a pair of input ports coupled to the first parallel side and a pair of output ports coupled to the second parallel side. The planar structure is configured to receive an input light wave of any wavelength in C-band via one input port and split to a TE-mode light wave and a TM-mode light wave respectively outputting to the pair of output ports.
Public/Granted literature
- US20200257127A1 SILICON-BASED POLARIZATION BEAM SPLITTER Public/Granted day:2020-08-13
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