Presentation 2017-12-07
Fabrication of vertical PN junction phase shifter for Si optical modulator based on strip loaded waveguide
Yuriko Maegami, Guangwei Cong, Morifumi Ohno, Makoto Okano, Kazuto Itoh, Nobuhiko Nishiyama, Shigehisa Arai, Koji Yamada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We fabricate a silicon optical phase shifter based on hydrogenated amorphous silicon (a-Si:H) strip-loaded waveguides on a silicon on insulator (SOI) platform by using a complementary metal-oxide semiconductor (CMOS) compatible process without half etching of the SOI layer. A vertical p-n junction is controllably constructed with ion implantation in a flat etchless SOI layer. The waveguide structure based on a thin a-Si:H strip line is formed by applying a controllable and uniform deposition process and having an etching stop layer. In detail evaluation of the fabricated device, the precisely formed core shape is confirmed by scanning transmission electron microscopy (STEM) observation and the uniformity of carrier profile is analyzed by secondary ion mass spectrometry (SIMS) and a scanning capacitance microscope (SCM). As modulation performances, the modulator provides 0.7- to 2-Vcm modulation efficiency and 28-Gbps high-speed operation.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Modulator / Vertical p-n junction / Strip-loaded waveguide / Silicon photonics
Paper # OPE2017-92
Date of Issue 2017-11-30 (OPE)

Conference Information
Committee OPE
Conference Date 2017/12/7(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kazutoshi Kato(Kyushu Univ.)
Vice Chair Kouki Sato(Furukawa Electric Industries)
Secretary Kouki Sato(NTT)
Assistant Takuo Tanemura(Univ. of Tokyo) / Naokatsu Yamamoto(NICT)

Paper Information
Registration To Technical Committee on OptoElectronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fabrication of vertical PN junction phase shifter for Si optical modulator based on strip loaded waveguide
Sub Title (in English)
Keyword(1) Modulator
Keyword(2) Vertical p-n junction
Keyword(3) Strip-loaded waveguide
Keyword(4) Silicon photonics
1st Author's Name Yuriko Maegami
1st Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
2nd Author's Name Guangwei Cong
2nd Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
3rd Author's Name Morifumi Ohno
3rd Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
4th Author's Name Makoto Okano
4th Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
5th Author's Name Kazuto Itoh
5th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
6th Author's Name Nobuhiko Nishiyama
6th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
7th Author's Name Shigehisa Arai
7th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
8th Author's Name Koji Yamada
8th Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
Date 2017-12-07
Paper # OPE2017-92
Volume (vol) vol.117
Number (no) OPE-339
Page pp.pp.13-18(OPE),
#Pages 6
Date of Issue 2017-11-30 (OPE)