High-SNR, high- repetition-rate, compact, picosecond, mid-infrared optical parametric oscillator pumped synchronously by a harmonic mode-locked fiber laser.

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-02-15 DOI:10.1364/OL.551720

Chongyang Xu, Bangyan Hu, Kun Zhang, Xiaofan Zhang, Yifan Chen, Hongquan Yao, Xinjie Lv, Jian Ning, Gang Zhao

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引用次数: 0

Abstract

This study proposes and demonstrates a high-performance picosecond mid-infrared optical parametric oscillator (OPO) based on harmonic mode-locked erbium-doped fiber laser synchronous pumping. The OPO exhibits unparalleled advantages including a compact structure, high repetition rate, excellent stability, and high signal-to-noise ratio (SNR). The OPO output pulse maintains a high repetition rate of 0.8 GHz while exhibiting highly uniform amplitude and a high SNR of 52 dB at 2.3 µm, and its cavity length is only 16 cm. The signal light wavelength is tunable within the range of 2.3-2.46 µm, while the idler light can be tuned within 4.18-4.74 µm. When the pump power is 4 W, the OPO delivers 120 mW of idler light power at 4.18 µm. This work provides what we believe to be a novel and effective solution for realizing ultrafast tunable lasers in the mid-infrared with a high repetition rate and a high SNR, which is expected to play an important role in the fields of spectroscopy and medicine.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.