A High-Gain Cladded Erbium-Doped LNOI Waveguide Amplifier Fabricated by PLACE

  • Youting Liang
  • , Junxia Zhou
  • , Zhaoxiang Liu
  • , Haisu Zhang*
  • , Zhiwei Fang
  • , Yuan Zhou
  • , Difeng Yin
  • , Jintian Lin
  • , Jianping Yu
  • , Rongbo Wu
  • , Min Wang
  • , Ya Cheng*
  • *Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

Erbium doped integrated waveguide amplifier based on thin film lithium niobate on insulator (LNOI) is fabricated using photolithography assisted chemo-mechanical etching technique (PLACE). A thin cladding layer of tantalum pentoxide (Ta2O5) is deposited on the fabricated LNOI waveguide which boosts the small-signal internal net gain exceeding 20 dB. Experimental characterizations reveal the advantage of Ta2O5 cladding in higher optical gain compared with the amplifier without cladding. The demonstrated high-gain LNOI amplifier holds great promise in lightwave communication, optical sensing and metrology.

Original languageEnglish
JournalOptics InfoBase Conference Papers
DOIs
StatePublished - 2022
Event2022 Conference on Lasers and Electro-Optics Pacific Rim, CLEO/PR 2022 - Sapporo, Japan
Duration: 31 Aug 20225 Sep 2022

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