Invention Grant
- Patent Title: Optical modulator
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Application No.: US15926467Application Date: 2018-03-20
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Publication No.: US10656444B2Publication Date: 2020-05-19
- Inventor: Keiji Tanaka
- Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Applicant Address: JP Osaka
- Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Current Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Current Assignee Address: JP Osaka
- Agency: Smith, Gambrell & Russell, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3046b27f
- Main IPC: G02F1/00
- IPC: G02F1/00 ; G02B26/00 ; G02F1/025 ; H01L23/64 ; G02F1/01 ; G02F1/015

Abstract:
An optical modulator implementing an electro-absorption (EA) modulator is disclosed. The optical modulator includes a transmission line, a terminator, an EA modulator, a bonding wire, and a coil element. The transmission line transmits an electrical signal. The terminator terminates the transmission line. The coil element includes first and second inductors magnetically coupled with each other, where the first inductor is connected with the transmission line, while, the second inductor is connected with the terminator. The bonding wire connects the first and second inductors with the EA modulator. The impedance of the coil element as viewed from the transmission line substantially matches with the impedance of the transmission line.
Public/Granted literature
- US20180275434A1 OPTICAL MODULATOR Public/Granted day:2018-09-27
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