Red and green light generation in TPPLNOI ridge optical waveguide with 1550 nm picosecond laser

被引：7

作者：

Yan, Congliao ^{[1
,2
]}

Gu, Baoshan ^{[1
]}

Zhao, Sheng ^{[1
]}

Wang, Shaoqian ^{[1
]}

Deng, Guoliang ^{[1
]}

Wang, Sha ^{[1
]}

Zhou, Shouhuan ^{[1
,3
]}

机构：

[1] Sichuan Univ, Coll Elect & Informat Engn, Chengdu 610064, Peoples R China

[2] Hubei Minzu Univ, Sch Adv Mat & Mech Engn, Enshi 445000, Peoples R China

[3] North China Res Inst Electroopt, Beijing 100015, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2023年 / 529卷

关键词：

PPLN; 1550 nm picosecond laser; Second-harmonic generation; Sum-frequency generation; FILM LITHIUM-NIOBATE; WAVELENGTH CONVERSION;

D O I：

10.1016/j.optcom.2022.129023

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Periodically poled lithium niobate (PPLN) waveguides are a powerful platform for efficient frequency conversion. Conventional frequency doubling PPLN converters only generate second-harmonic light. However, we propose a trapezoidal periodically poled lithium niobate on insulator (TPPLNOI) ridge optical waveguide, simultaneously generating red and green light with 1550 nm picosecond laser by cascading second-harmonic generation and sum-frequency generation (SHG-SFG). According to the experimental data, we find that the second-harmonic (red light at 775 nm) and third-harmonic (green light at 517 nm) power increase with the pump light (1550 nm) power. We also verify experimentally that temperature can affect nonlinear frequency conversion of cascading SHG-SFG, and when the temperature increases from 20 degrees C to 70 degrees C, the normalized conversion efficiency of red light and green light rises from 154.79% W-1 cm-2, 129.24% W-1 cm-2 to 204.29% W-1 cm-2, 152.08% W-1 cm-2, respectively.

引用

页数：4

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