Optics letters最新文献

All-optical image transmission through a dynamically perturbed multimode fiber and a ring-core fiber using diffractive deep neural networks. 利用衍射深度神经网络，通过动态扰动多模光纤和环芯光纤进行全光图像传输。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.541194

Jianping Zhu, Lei Zhu, Ran Gao, Xishuo Wang, Jianxin Ren, Shuaidong Chen, Zexuan Jing, Zhipei Li, Shanting Hu, Qinghua Tian, Bo Tian, Huan Chang, Dong Guo, Xiaolong Pan, Zheyu Wu, Xiangjun Xin, Bo Liu

引用次数: 0

Coherent instabilities in thulium-based fiber amplifiers induced by laser frequency modulation. 激光频率调制诱发铥基光纤放大器的相干不稳定性。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.539160

Andrea Pertoldi, Jakob M Hauge, Patrick Bowen Montague, Poul Varming

引用次数: 0

High range resolution spectral-scanning LiDAR based on optical frequency-domain reflectometry. 基于光学频域反射测量的高分辨率光谱扫描激光雷达。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.534930

Degangao Kong, Cheng Chen, Jiajun Wan, Yongqiang Wen, Xiaolei Zhang, Sujun Yuan, Xiaoping Liu

引用次数: 0

Realizing 0.7 dB/m gain in O + E band by promoting BACs-P formation in bismuth-doped phosphosilicate fiber with double-pass configuration. 通过在双通配置的掺铋磷硅酸盐光纤中促进 BACs-P 的形成，实现 O + E 波段 0.7 dB/m 的增益。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.541880

Xiaoke Yin, Shaokun Liu, Le He, Wenzhen Li, Yang Chen, Nengli Dai, Jinyan Li

{"title":"Realizing 0.7 dB/m gain in O + E band by promoting BACs-P formation in bismuth-doped phosphosilicate fiber with double-pass configuration.","authors":"Xiaoke Yin, Shaokun Liu, Le He, Wenzhen Li, Yang Chen, Nengli Dai, Jinyan Li","doi":"10.1364/OL.541880","DOIUrl":"10.1364/OL.541880","url":null,"abstract":"The long fiber length required for the amplification of bismuth-doped fiber (BDF) has hindered its practical application. In this paper, we propose and demonstrate a feasible method to improve the active absorption of bismuth active centers (BACs) by optimizing the drawing conditions, achieving a high gain with a short fiber length. The bismuth-doped phosphosilicate fiber (BPSF) preform was fabricated by the modified chemical vapor deposition (MCVD) process and drawn into fiber under nine different conditions. The results indicate that the active absorption of BACs increases as the drawing temperature increases and the drawing speed decreases within these drawing parameters. Meanwhile, the corresponding gain per unit length is improved. Furthermore, a maximum gain of 31.6 dB at 1350 nm with the >20 dB gain wavelength range of 1311-1401 nm was achieved in a double-pass double-pump configuration, using only 45 m BPSF. Meanwhile, the -3 dB bandwidth was 1328-1370 nm. The gain per unit length is 0.7 dB/m, which, to the best of our knowledge, is the highest gain per unit length reported for the BPSF.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"49 22","pages":"6525-6528"},"PeriodicalIF":3.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142639550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Silicon-on-insulator wavelength-selective filter with integrated detectors at the 2 µm wave band. 带有集成探测器的 2 µm 波段硅绝缘体上波长选择滤波器。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.542147

Yeasir Arafat, Abi Waqas, John Justice, Agnieszka Gocalinska, Fatih Atar, Eoin Russell, Brendan Roycroft, Darpan Mishra, Emanuele Pelucchi, Fatima Gunning, Brian Corbett

引用次数: 0

Multidimensional QPSK symbol modulation scheme based on random sequence extraction for D-band photonics-aided wireless communication. 基于随机序列提取的多维 QPSK 符号调制方案，用于 D 波段光子辅助无线通信。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.542218

Chengzhen Bian, Bohan Sang, Xiongwei Yang, Chen Wang, Long Zhang, Yi Wei, Qiutong Zhang, Kaihui Wang, Wen Zhou, Jianjun Yu

引用次数: 0

High-sensitivity NO₂ fluorescence sensor based on a QDs@Aerogels/SM composite nanofilm. 基于 QDs@Aerogels/SM 复合纳米薄膜的高灵敏度 NO2 荧光传感器。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.529773

Heng Li, Yongxiao Chen, Wei Zhou, Guanjie Yang, Tian Xie, Qiuhua Li, Jianlin Huang, Cong Liu, Xiaobo Xing

{"title":"High-sensitivity NO2 fluorescence sensor based on a QDs@Aerogels/SM composite nanofilm.","authors":"Heng Li, Yongxiao Chen, Wei Zhou, Guanjie Yang, Tian Xie, Qiuhua Li, Jianlin Huang, Cong Liu, Xiaobo Xing","doi":"10.1364/OL.529773","DOIUrl":"https://doi.org/10.1364/OL.529773","url":null,"abstract":"Quantum dots (QDs) exhibit excellent optical and chemical properties, making them advantageous for fluorescence sensing. However, gas sensor using QDs is often hampered by challenges such as gas diffusion and low concentration. This work describes the development of a nitrogen dioxide (NO2) fluorescence gas sensor that utilizes a QDs@Aerogels/SM composite nanofilm containing CdTe QDs modified by reduced glutathione (GSH), silica microspheres (SMs), and silica aerogel. The SM and porous aerogels create a uniform porous structure that enhances the distribution of QDs. Compared to the pure QDs film, the QDs@Aerogels/SM composite film exhibits enhanced fluorescence intensity. The porous structure promotes the adsorption of NO2, which improves the detection sensitivity. The QDs@Aerogels/SM composite film was applied in a portable gas sensor. The sensor demonstrates a good linear response to NO2 gas in the range of 0-10 ppm, with an ultra-low detection limit of 0.096 ppm and high selectivity. The uniform distribution of aerogel and SM enhances the stability of the composite nanofilm, and the fluorescence of the films remains virtually unchanged over a period of 60 days which ensures its optimal performance over extended periods of use. The fluorescent NO2 sensor demonstrated selective and sensitive quenching upon exposure to NO2, making it ideal for environmental monitoring and further applications.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"49 22","pages":"6381-6384"},"PeriodicalIF":3.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142639520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Power domain superimposed modulation method based on dimensional level transformation and 5D constellation shaping. 基于维级变换和 5D 星座整形的功率域叠加调制方法。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.540774

Haojun Liu, Bo Liu, Jianxin Ren, Yaya Mao, Jianye Zhao, Zhi Liu, Tao Chen, Feng Wang, Xiangyu Wu, Shuaidong Chen, Ying Li, Xiumin Song, Zhipeng Qi

引用次数: 0

Adaptive range gating based on variational Bayesian inference for space debris ranging with spaceborne single-photon LiDAR. 基于变异贝叶斯推理的自适应测距门控，用于利用星载单光子激光雷达进行空间碎片测距。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.533546

Yuan Tian, Xiaodong Hu, Yixin Zhao, Xuan Zhang, Dingjie Wang, Songmao Chen, Wei Hao, Meilin Xie, Xiuqin Su

{"title":"Adaptive range gating based on variational Bayesian inference for space debris ranging with spaceborne single-photon LiDAR.","authors":"Yuan Tian, Xiaodong Hu, Yixin Zhao, Xuan Zhang, Dingjie Wang, Songmao Chen, Wei Hao, Meilin Xie, Xiuqin Su","doi":"10.1364/OL.533546","DOIUrl":"https://doi.org/10.1364/OL.533546","url":null,"abstract":"To enhance the accuracy of space debris localization, spaceborne single-photon LiDAR (SSPL) presents a promising technique for accurate target ranging. Extended Kalman filtering (EKF) plays a crucial role in range gating under high dynamic and nonlinear motion conditions of space debris, ensuring accurate state estimation and prior distance data. However, unknown and time-varying statistics of process and measurement noise significantly degrade state estimation accuracy, posing risks of filter divergence and reduced photon reception, ultimately rendering range gating ineffective. To address this challenge, we propose an adaptive range gating method based on variational Bayesian adaptive extended Kalman filtering (ARG-VBAEKF). This method leverages variational Bayesian (VB) posterior approximation to estimate the joint distribution of state and noise. Simulation results demonstrate that ARG-VBAEKF achieves accurate state and noise estimation, thereby effectively enhancing range gating performance in SSPL-based space debris ranging.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"49 22","pages":"6561-6564"},"PeriodicalIF":3.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142639472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Continous-wave and passively Q-switched laser at 1.36 µm of a Nd³⁺-doped phosphate fiber with a Yb³⁺-doped inner cladding. 1.36 µm 波长的连续波和无源 Q 开关激光器，由掺杂 Nd3+ 的磷酸盐光纤和掺杂 Yb3+ 的内包层构成。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2024-11-15 DOI: 10.1364/OL.537861

Yafei Wang, Yan Sun, Xin Wang, Chongyun Shao, Lei Zhang, Shikai Wang, Danping Chen, Chunlei Yu, Lili Hu

{"title":"Continous-wave and passively Q-switched laser at 1.36 µm of a Nd3+-doped phosphate fiber with a Yb3+-doped inner cladding.","authors":"Yafei Wang, Yan Sun, Xin Wang, Chongyun Shao, Lei Zhang, Shikai Wang, Danping Chen, Chunlei Yu, Lili Hu","doi":"10.1364/OL.537861","DOIUrl":"10.1364/OL.537861","url":null,"abstract":"All-fiber continuous-wave (CW) and passively Q-switched lasers at 1.36 µm (4F3/2 → 4I13/2) by a Nd3+-doped double cladding phosphate fiber are demonstrated for the first time, to the best of our knowledge. To suppress the competitive 0.9 and 1.05 µm emission, the Yb3+ ions are intentionally introduced into the inner cladding of this Nd3+-doped fiber. CW laser at 1.36 µm with a signal-to-noise ratio over 50 dB is realized by using two fiber-type dielectric films as cavity mirrors. A 4.0% CW laser efficiency is obtained when the Nd3+-doped fiber length is 33 mm. The emission at 0.9 and 1.05 µm is well-suppressed, and no parasitic laser is observed. Taking a commercial semiconductor saturable absorber (SA) mirror as the SA, the compact 1.36-µm Q-switched laser is demonstrated, and the repetition rate of output pulses can be tuned from 230 to 522 kHz with a narrowest pulse duration of 152 ns. Our results may provide a promising way to realize 1.3 µm laser oscillation in Nd3+-doped fibers.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"49 22","pages":"6441-6444"},"PeriodicalIF":3.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142639486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0