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2024 advanced Fiber Laser Conference, AFL 2024

作者： Li, Zhuobiao Li, Keyi Wang, Jiachen Xing, Luo Dong, Fanlong Lue, Qitao Guo, Chunyu Ruan, Shuangchen Shenzhen Key Laboratory of Laser Engineering Guangdong Provincial Key Laboratory of Micro/Nano opt mechatronics Engineering Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Shenzhen Technology University Shenzhen518118 China Han’s Laser Technology Industry Group Co. Ltd. Shenzhen518057 China

ISBN: (数字)9781510688889

ISBN: (纸本)9781510688872

In this paper, we demonstrate a all-fiber 3.5 μm mode-locked fiber laser based on Black phosphorus. The fiber laser delivered pulses with a central wavelength of 3468.4 nm, 3 dB spectral bandwidth of 2.1 nm, pulse repetition rate of 16.85 MHz, average output power of 46 mW, and signal-to-noise ratio of 65 dB. Due to the relative low output power and the low sensitivity of detectors in 3.5 μm regime, the pulse width had not hitherto been acquired using a commercial autocorrelation. The Fourier transform limit pulse width estimated by the hyperbolic secant curve is 8.4 ps. This work opens up new ideas for generating all-fiber mode-locking mid-infrared laser. © 2025 SPIE.

关键词： Mode-locked fiber lasers

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3μm watt level Dy: ZBLAN All-fiber high power lasers

3μm watt level Dy: ZBLAN All-fiber high power lasers

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2024 advanced Fiber Laser Conference, AFL 2024

作者： Zhang, Chun Li, Dianjia Dong, Fanlong Lue, Qitao Guo, Chunyu Ruan, Shuangchen Shenzhen Key Laboratory of Laser Engineering Guangdong Provincial Key Laboratory of Micro/Nano opt mechatronics Engineering Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Shenzhen Technology University Shenzhen518118 China Han’s Laser Technology Industry Group Co. Ltd. Shenzhen518057 China

ISBN: (数字)9781510688889

ISBN: (纸本)9781510688872

The mid-infrared band fiber lasers are very important for fundamental research and industrial applications. Mid-infrared fiber lasers in the 2 - 3.5 μm spectral region have been widely used in many fields, including gas remote sensing, molecular detection, material processing, and biomedicine. In this letter, by splicing the fluoride fiber and the quartz fiber, the 976 nm pump light was fused to a 6 m, 7 mol.%, Er3+:ZBLAN fiber system. With the fluoride fiber grating as the resonator, a 11.7 W continuous light output at 2.8 µm was achieved, realizing a high-power, all-fiber 2.8 µm laser. The laser center wavelength was 2826.6 nm, the maximum slope efficiency was 21.7%, and the beam quality M2 3+: ZBLAN fiber. Using the high-power 2.8 µm all-fiber laser as the pump source, it was fused to a 2.7 m, 0.2 mol.%, Dy3+:ZBLAN fiber system through a single-mode ZBLAN fiber. Two self-inscribed fiber Bragg gratings (FBGs) with reflectivities of 99.68% and 30.5% respectively were used to construct an all-fiber Fabry-Perot laser cavity. A 3.8 W continuous light output at 3.2 µm was achieved under a pump power of 7.7 W, realizing a high-power, all-fiber 3.2 µm laser. The laser center wavelength was 3198.97 nm, the measured slope efficiency was 53.0%, the maximum optical-to-optical efficiency was 49.4%, and the beam quality M2 © 2025 SPIE.

关键词： Fiber lasers

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Polarization maintaining all-fiber 2-μm pulse seeded by the soliton self-frequency shift of 1.5-μm pulse

Polarization maintaining all-fiber 2-μm pulse seeded by the...

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2024 advanced Fiber Laser Conference, AFL 2024

作者： Yu, Qichun Luo, Xing Wang, Jiachen Lu, Qitao Guo, Chunyu Ruan, Shuangchen Shenzhen Key Laboratory of Laser Engineering Guangdong Provincial Key Laboratory of Micro/Nano opt mechatronics Engineering Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Shenzhen Technology University Shenzhen518118 China Han’s Laser Technology Industry Group Co. Ltd. Shenzhen518057 China

ISBN: (数字)9781510688889

ISBN: (纸本)9781510688872

This study used erbium-doped fiber laser to pump highly nonlinear fibers to generate soliton self-frequency shift (SSFS), and implemented a full fiber polarization maintaining 2 μm master oscillator power amplifier (MOPA) system based on a 1.5 μm pulse laser frequency shift. By using saturable absorber (SA) mode-locked pulses as seed sources, a traditional soliton with a center wavelength of 1560-nm, and a repetition rate of 67-MHz was obtained. After two-stage amplification, the seed pulse can output a maximum average power of 982mW. After two stages of amplification, it can output a maximum average power of 982mW. Cascade a segment of polarization maintaining high nonlinear fiber (PM-HNLF) after the amplification stage, the amplified optical pulse generates soliton self-frequency shift in the PM-HNLF. In this work, a small core PM1550 fiber is used as the high nonlinear fiber, which can ultimately be frequency shifted to 2060nm, with a signal-to-noise ratio of (SNR) 73.32dB. The system is entirely constructed with polarization maintaining fibers, without any free space optical components, with strong anti-interference ability, good stability, and high integration. © 2025 SPIE.

关键词： Saturable absorbers

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All-polarization-maintaining multi-pulse thulium-doped fiber laser based on nonlinear polarization rotation

All-polarization-maintaining multi-pulse thulium-doped fiber...

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2024 advanced Fiber Laser Conference, AFL 2024

作者： Wang, Tao Li, Zhuobiao Wang, Jiachen Xing, Luo Dong, Fanlong Lue, Qitao Guo, Chunyu Ruan, Shuangchen Shenzhen Key Laboratory of Laser Engineering Guangdong Provincial Key Laboratory of Micro/Nano opt mechatronics Engineering Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Shenzhen Technology University Shenzhen518118 China Han’s Laser Technology Industry Group Co. Ltd. Shenzhen518057 China

ISBN: (数字)9781510688889

ISBN: (纸本)9781510688872

Soliton molecule multi-pulse output was achieved based on an all-polarization-maintaining thulium-doped fiber, with a central wavelength of 1970.6 nm, a pulse repetition frequency of 12.39 MHz, and an average output power of 8 mW. Due to the low pulse output power obtained, it was impossible to measure the pulse width using a commercial autocorrelator, and the oscilloscope could not resolve pulse intervals below 50 ps, thus the symmetric waveform of the soliton molecule was not observed. As the pump power varied, the laser could switch between soliton cluster pulse and noise-like pulse outputs. The laser structure consisted of an all-polarization-maintaining ring cavity pumped by a 793 nm laser. © 2025 SPIE.

关键词： Mode-locked fiber lasers

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Kilowatt level high-power thulium doped fiber laser

Kilowatt level high-power thulium doped fiber laser

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2024 advanced Fiber Laser Conference, AFL 2024

作者： Zhang, Xiao Dong, Fanlong Yan, Peiguang Wang, Jinzhang Lue, Qitao Guo, Chunyu Ruan, Shuangchen Shenzhen Key Laboratory of Laser Engineering Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province State Key Laboratory of Radio Frequency Heterogeneous Integration College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Shenzhen Technology University Shenzhen518118 China Han’s Laser Technology Industry Group Co. Ltd. Shenzhen518057 China

ISBN: (数字)9781510688889

ISBN: (纸本)9781510688872

In this paper, a high power Tm3+-doped fiber laser (TDFL) based on a monolithic master oscillator power amplifier (MOPA) system with the center wavelength is 1940 nm is *** maximum laser power was measured to be 909 W with a slope efficiency of 50.1% at the 793 nm pump power of 1816 W. Power stability of the laser output over 60 min is measured to be ~0.14% .Output power is pump-limited without the onset of parasitic oscillation or amplified spontaneous emission (ASE) even at the maximum power, showing further power scaling should be possible with increase the pump power. © 2025 SPIE.

关键词： Optical pumping

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LOW-COST PIN GRID ARRAY PACKAGES

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SOLID STATE technology 1985年第5期28卷 239-241页

作者： BROWN, CH Advanced Micro Devices Advanced Package & Materials Development Group Sunnyvale CA USA Advanced Micro Devices Advanced Package & Materials Development Group Sunnyvale CA USA

The search for an alternative to the expensive multilayer ceramic Pin Grid Array (PGA) package has led to a new application of Chip On Board (COB) technology (used today in hybrid assemblies such as electronic watches and video game modules). Package configuration and material selection are briefly explored. A novel approach to package/fabrication process optimization is presented and an example described.

关键词： INTEGRATED CIRCUITS, HYBRID

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ALUMINUM BOND PAD CONTAMINATION BY THERMAL OUTGASSING OF ORGANIC MATERIAL FROM SILVER-FILLED EPOXY ADHESIVES

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IEEE TRANSACTIONS ON COMPONENTS HYBRIDS AND MANUFACTURING technology 1987年第4期10卷 586-592页

作者： KHAN, MM TARTER, TS FATEMI, H Materials Technology Development Group Advanced Micro Devices Inc. Sunnyvale CA USA

Effects of outgassing from commercial die attach adhesive systems on the mechanical strength of gold aluminum bonds were studied. Bond pad metallizations on unpackaged test dice were exposed to the die attach media under standard cure conditions, and gold bonds were subjected to a steam pressure pot storage. Bond pull strength as well as resistance data were obtained to determine the extent of bond degradation. Bonds exposed to die attach systems containing reactive epoxy diluents were found to cause faster mechanical degradation of the Au/Al bond under steam pressure pot storage as compared with the die attach systems formulated with ester type or other nonreactive solvents. Cleaning the bond pad with N 2 /O 2 plasma prior to wire bonding was found to dramatically improve the mechanical strength of the bonds. It was determined that the epoxy reactive diluents in some of the die attach systems could deposit on the bond pad during the cure and cause growth and reinforcement of the native Al 2 O 3 film on the pad surface with a rigid self-polymerized organic resin. This could prevent complete exposure of the underlying metal during the wire bonding process and leave debris within the bond. Wire bonds made under such a condition would be chemically vulnerable to attack by the moisture and the ionic species present in a plastic package.

关键词： Aluminum Bonding Contamination Organic materials microassembly Gold Wire Degradation Metallization Testing

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3D hierarchical porous Cr2O3 nanomaterials for high performance dimethyl disulfide gas sensor

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Ceramics International 2025年

作者： Guo, Wen Deng, Zanhong Zhang, Ruofan Klamchuen, Annop Horprathum, Mati Wang, Shimao Fang, Xiaodong You, Libing Meng, Gang Institutes of Physical Science and Information Technology Anhui University Hefei230601 China Anhui Provincial Key Laboratory of Photonic Devices and Materials Anhui Institute of Optics and Fine Mechanics And Key Lab of Photovoltaic and Energy Conservation Materials Chinese Academy of Sciences Hefei230031 China Advanced Laser Technology Laboratory of Anhui Province Hefei230037 China Wan Jiang Emerging Industry Technology Development Center Tongling244000 China National Nanotechnology Center National Science and Technology Development Agency Pathum Thani12120 Thailand Opto-Electrochemical Sensing Research Team Spectroscopic and Sensing Devices Research Group National Electronics and Computer Technology Center Pathum Thani12120 Thailand College of New Materials and New Energies Shenzhen Technology University Shenzhen518118 China Shenzhen Shengfang Technology Company Limited Shenzheng518116 China

Dimethyl disulfide (DMDS) is one of the malodorous gases mandatorily monitored by the government. Developing highly sensitive and selective DMDS sensors based on metal oxide semiconductor (MOS) is an urgent requirement and remains a challenge. In this study, 3D hierarchical mesoporous Cr2O3 nanoparticles were successfully synthesized by a time- and cost-efficient solution combustion synthesis method. The sensing performances of the as-synthesized mesoporous Cr2O3 nanoparticles have been thoroughly investigated. The sensor demonstrated a high response of 102 to 10 ppm DMDS at working temperature of 140 °C, along with satisfactory selectivity and long-term stability, indicating a promising future in DMDS detection. © 2025

关键词： Combustion synthesis

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History-effect-conscious SPICE model extraction for PD-SOI technology

History-effect-conscious SPICE model extraction for PD-SOI t...

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2004 IEEE International SOI Conference, Proceedings

作者： Goo, Jung-Suk An, Judy Xilin Thuruthiyil, Ciby Ly, Tran Chen, Qiang Radwin, Martin Wu, Zhi-Yuan Lee, Michael S.L. Zamudio, Luis Yonemura, James Assad, Farzin Pelella, Mario M. Icel, Ali B. Logic Technology Development Group Advanced Micro Devices Sunnyvale CA 94088-3453

The explicit fitting guidelines for AC and DC characteristics specifically focussed on accurate modeling of the history effects in PD-SOI-CMOS circuits were discussed. The measured data showed a saturated slope in the negative-bias range and it was an artifact of high resistance and partial depletion of the thin-body. The VDD dependence of the history-effect were different since the log-scale slope of the dashed-line was 45% higher than that of the solid-line in the low-bias forward region. Analysis shows that the fitting strategy raised the level of the history-effect by about 5% and also enhanced the voltage dependence.

关键词： Electric network analysis

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advanced compact modeling of logic devices toward CMOS scaling limits

Advanced compact modeling of logic devices toward CMOS scali...

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2004 7th International Conference on Solid-State and Integrated Circuits technology Proceedings, ICSICT 2004

作者： An, Judy Xilin Chen, Qiang Xiang, Qi Technology Development Group Advanced Micro Devices Sunnyvale CA 94088-3453 United States Technology Research Group Advanced Micro Devices Sunnyvale CA 94088-3453 United States

Some research work on advanced compact modeling of non-classical logic devices is reviewed in this paper. advanced logic devices toward CMOS scaling limits are also reviewed as background information so as to understand the physics and features demanded by the non-classical logic devices and thus the challenges of modeling these devices. © 2004 IEEE.

关键词： Logic devices

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