Erbium-ytterbium codoped thin-film lithium niobate integrated waveguide amplifier with a 27 dB internal net gain-Reference-Cited by-同舟云学术

Erbium-ytterbium codoped thin-film lithium niobate integrated waveguide amplifier with a 27 dB internal net gain

Published:2023-08-10 Issue:16 Volume:48 Page:4344
ISSN:0146-9592
Container-title:Optics Letters
language:en
Short-container-title:Opt. Lett.

Author:

Zhang Zhihao¹²³,Li Shanming¹,Gao Renhong¹²,Zhang Haisu^ORCID,Lin Jintian¹,Fang Zhiwei^ORCID,Wu Rongbo^ORCID,Wang Min,Wang Zhenhua^ORCID,Hang Yin²¹,Cheng Ya¹⁴⁵⁶^ORCID

Affiliation:

1. Chinese Academy of Sciences (CAS)

2. University of Chinese Academy of Sciences

3. Shanghai Tech University

4. Shanghai Research Center for Quantum Sciences

5. Shanxi University

6. Shandong Normal University

Abstract

A photonic integrated waveguide amplifier fabricated on erbium-ytterbium (Er-Yb) codoped thin-film lithium niobate (TFLN) has been investigated in this work. A small-signal internal net gain of 27 dB is achieved at a signal wavelength of 1532 nm in the fabricated Er-Yb TFLN waveguide amplifier pumped by a diode laser at ≈980 nm. Experimental characterizations reveal the suitability of waveguide fabrication by the photolithography-assisted chemo-mechanical etching (PLACE) technique and also the gain in an Yb-sensitized-Er material. The demonstrated high-gain chip-scale TFLN amplifier is promising for interfacing with established lithium niobate integrated devices, greatly extending the spectrum of TFLN photonic applications.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Science and Technology Commission of Shanghai Municipality

Shanghai Pujiang Program

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

Reference39 articles.

1. Integrated Optical Devices in Lithium Niobate

2. A review of lithium niobate modulators for fiber-optic communications systems