Numerical investigation of direct IQ modulation of spin-VCSELs for coherent communications

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

We propose and numerically investigate a method for direct in-phase quadrature (IQ) modulation of spin-controlled vertical-cavity surface-emitting lasers (spin-VCSELs) for coherent communications. In particular, an injection-locked spin-VCSEL is investigated by using spin-flip rate equations for generating quadrature amplitude modulation (QAM) signals. A polarizer 45° tilted to the polarization axis of the injected external light is used to extract the in-phase and quadrature-phase components of the output light from the injection-locked spin-VCSEL. It is confirmed that QAM signals can be generated with the proposed method successfully, and long electron spin relaxation time and small linear birefringence in the spin-VCSEL are suitable for efficiently generating clear QAM constellations with a low error vector magnitude. A detuning condition for the injection locking of the spin-VCSEL is found to be important for obtaining wide modulation bandwidth of the direct IQ modulation.

本文言語English
ホスト出版物のタイトルSpintronics XIII
編集者Henri-Jean M. Drouhin, Jean-Eric Wegrowe, Manijeh Razeghi, Henri Jaffres
出版社SPIE
ISBN(電子版)9781510637467
DOI
出版ステータスPublished - 2020
イベントSpintronics XIII 2020 - Virtual, Online, United States
継続期間: 2020 8 242020 9 4

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
11470
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

Conference

ConferenceSpintronics XIII 2020
国/地域United States
CityVirtual, Online
Period20/8/2420/9/4

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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