单片双波长高功率DFB激光器，线宽低于100khz，用于太赫兹应用。

IF 3.3 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-02-15 DOI:10.1364/OL.553264

Te-Hua Liu, You-Yu Tu, Yi-Hsuan Lu, Sung-Pu Yang, Chao-Hsin Wu

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引用次数: 0

摘要

我们报道了一种优化的单片双波长分布反馈（DFB）激光器，用于太赫兹（THz）应用，旨在解决太赫兹发射机的复杂性，成本和功率效率的挑战。该激光器可实现65.93 mW的高光功率。在宽温度范围和高偏置电流下，两种主模的功率差保持在1 dB以下，各侧模抑制比均超过36 dB。此外，两种主模式具有低相对强度噪声峰值（-153.88 dB/Hz和-153.46 dB/Hz）和窄线宽（117.33 kHz和70.59 kHz），表现出稳定和高性能的双波长工作。这些结果强调了双波长(DW)-DFB激光器作为太赫兹系统紧凑且经济高效的解决方案的潜力。

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Monolithic dual-wavelength high-power DFB laser with sub-100 kHz linewidth for THz application.

We report an optimized monolithic dual-wavelength distributed feedback (DFB) laser for terahertz (THz) applications, designed to address the challenges of complexity, cost, and power efficiency in a THz transmitter. This laser can achieve a high optical power of 65.93 mW. Under a wide temperature range and high-bias current, the power difference between the two primary modes remains below 1 dB, with each side-mode suppression ratio exceeding 36 dB. Additionally, the two primary modes exhibit low relative intensity noise peaks of -153.88 dB/Hz and -153.46 dB/Hz and narrow linewidths of 117.33 kHz and 70.59 kHz, demonstrating stable and high-performance dual-wavelength operation. These results underscore the potential of the dual-wavelength (DW)-DFB laser as a compact and cost-effective solution for THz systems.

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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.