Highly efficient and widely tunable Si3N4 waveguide-based optical parametric oscillator

被引：3

作者：

Gao, Ming ^{[1
]}

Luepken, Niklas M. ^{[1
]}

Fallnich, Carsten ^{[1
]}

机构：

[1] Univ Munster, Inst Appl Phys, Corrensstr 2, D-48149 Munster, Germany

来源：

OPTICS EXPRESS | 2024年 / 32卷 / 07期

关键词：

SPANNING SUPERCONTINUUM GENERATION; SILICON; AMPLIFICATION; MODULATION; ABSORPTION; MICROSCOPY;

D O I：

10.1364/OE.515511

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate an efficient and widely tunable synchronously pumped optical parametric oscillator (OPO) exploiting four -wave mixing (FWM) in a silicon nitride (Si3N4) waveguide with inverted tapers. At a pump pulse duration of 2 ps, the waveguide-based OPO (WOPO) exhibited a high external pump -to -idler conversion efficiency of up to -7.64 dB at 74% pump depletion and a generation of up to 387 pJ output idler pulse energy around 1.13 mu m wavelength. Additionally, the parametric oscillation resulted in a 64 dB amplification of idler power spectral density in comparison to spontaneous FWM, allowing for a wide idler wavelength tunability of 191 nm around 1.15 mu m. Our WOPO represents a significant improvement of conversion efficiency as well as output energy among chi 3 WOPOs, rendering an important step towards a highly efficient and widely tunable chip -based light source for, e.g., coherent anti -Stokes Raman scattering.

引用

页码：10899 / 10909

页数：11

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