The Experts below are selected from a list of 30432 Experts worldwide ranked by ideXlab platform
Andrew M. Weiner - One of the best experts on this subject based on the ideXlab platform.
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high rate Femtosecond Pulse generation via line by line processing of phase modulated cw laser frequency comb
Electronics Letters, 2006Co-Authors: Chenbin Huang, Daniel E Leaird, Z Jiang, Andrew M. WeinerAbstract:Generation of a high repetition rate Femtosecond Pulse train by line-by-line phase and amplitude shaping applied to over 40 lines from a phase-modulated CW laser is demonstrated. Resulting Pulses with FWHM duration of 2.76 ps at 9 GHz repetition rate are reported. 324 fs Pulses are obtained at 9 GHz after soliton compression.
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Femtosecond Pulse shaping using spatial light modulators
Review of Scientific Instruments, 2000Co-Authors: Andrew M. WeinerAbstract:We review the field of Femtosecond Pulse shaping, in which Fourier synthesis methods are used to generate nearly arbitrarily shaped ultrafast optical wave forms according to user specification. An emphasis is placed on programmable Pulse shaping methods based on the use of spatial light modulators. After outlining the fundamental principles of Pulse shaping, we then present a detailed discussion of Pulse shaping using several different types of spatial light modulators. Finally, new research directions in Pulse shaping, and applications of Pulse shaping to optical communications, biomedical optical imaging, high power laser amplifiers, quantum control, and laser-electron beam interactions are reviewed.
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Femtosecond Pulse processing
Optical and Quantum Electronics, 2000Co-Authors: Andrew M. WeinerAbstract:We discuss Fourier methods for shaping and processing Femtosecond optical signals. Examples of applications in optical communications and in generation of terahertz radiation are presented.
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Femtosecond Pulse processing
Optical and Quantum Electronics, 2000Co-Authors: Andrew M. WeinerAbstract:We discuss Fourier methods for shaping and processing Femtosecond optical signals. Examples of applications in optical communications and in generation of terahertz radiation are presented.
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Complete dispersion compensation for 400-fs Pulse transmission over 10-km fiber link using dispersion compensating fiber and spectral phase equalizer
IEEE Photonics Technology Letters, 1999Co-Authors: S. Shen, Andrew M. WeinerAbstract:We have demonstrated essentially complete dispersion compensation for 400-fs Pulses over a 10-km fiber link using dispersion compensating fiber and a programmable Femtosecond Pulse shaper functioning as a spectral phase equalizer. The Pulse shaper impresses adjustable quadratic and cubic phases onto the spectrum and removes all the residual dispersion and dispersion slope in the dispersion compensated fiber link. Our work shows that the Pulse shaper technique provides a powerful and convenient tool for programmable fiber dispersion compensation over broad optical bandwidth. This allows distortion-free Femtosecond Pulse transmission over a fiber link in excess of 10 km without requiring the exact trimming of the dispersion-compensating fiber.
Chujun Zhao - One of the best experts on this subject based on the ideXlab platform.
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Femtosecond Pulse erbium doped fiber laser by a few layer mos 2 saturable absorber
Optics Letters, 2014Co-Authors: Fuzao Wang, Rui Tang, Wencheng Xu, Chujun Zhao, Han ZhangAbstract:We report on the generation of a Femtosecond Pulse in a fiber ring laser by using a polyvinyl alcohol (PVA)-based molybdenum disulfide (MoS2) saturable absorber (SA). With a saturable optical intensity of 34 MW/cm2 and a modulation depth of ∼4.3%, the PVA-based MoS2 SA had been employed with an erbium-doped fiber ring laser as a mode locker. The mode-locking operation could be achieved at a low pump threshold of 22 mW. A ∼710 fs Pulse centered at 1569.5 nm wavelength with a repetition rate of 12.09 MHz had been achieved with proper cavity dispersion. With the variation of net cavity dispersion, output Pulses with durations from 0.71 to 1.46 ps were obtained. The achievement of a Femtosecond Pulse at 1.55 μm waveband demonstrates the broadband saturable absorption of MoS2, and also indicates that the filmy PVA-based MoS2 SA is indeed a good candidate for an ultrafast saturable absorption device.
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Femtosecond Pulse generation from a topological insulator mode locked fiber laser
Optics Express, 2014Co-Authors: Xuwu Zheng, Wencheng Xu, Han Zhang, Nian Zhao, Chujun ZhaoAbstract:We reported on the generation of Femtosecond Pulse in a fiber ring laser by using a polyvinyl alcohol (PVA)-based topological insulator (TI), Bi2Se3 saturable absorber (SA). The PVA-TI composite has a low saturable optical intensity of 12 MW/cm2 and a modulation depth of ~3.9%. By incorporating the fabricated PVA-TISA into a fiber laser, mode-locking operation could be achieved at a low pump threshold of 25 mW. After an optimization of the cavity parameters, optical Pulse with ~660 fs centered at 1557.5 nm wavelength had been generated. The experimental results demonstrate that the PVA could be an excellent host material for fabricating high-performance TISA, and also indicate that the filmy PVA-TISA is indeed a good candidate for ultrafast saturable absorption device.
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Femtosecond Pulse generation from a topological insulator mode locked fiber laser
arXiv: Optics, 2014Co-Authors: Hao Liu, Chujun Zhao, Han Zhang, Xuwu Zheng, Nian Zhao, Meng Liu, Aiping Luo, Zhichao Luo, Shuangchun WenAbstract:We reported on the generation of Femtosecond Pulse in an anomalous-dispersion fiber ring laser by using a polyvinyl alcohol (PVA)-based Topological Insulator (TI), Bi2Se3 saturable absorber (SA). The PVA-TI composite has a low saturable optical intensity of 12 MW/cm2 and a modulation depth of ~3.9%. By incorporating the fabricated PVA-TISA into a fiber laser, mode-locking operation could be achieved at a low pump threshold of 25 mW. After an optimization of the cavity parameters, optical Pulse with ~660 fs centered at 1557.5 nm wavelength had been generated. The experimental results demonstrate that the PVA could be an excellent host material for fabricating high-performance TISA, and also indicate that the filmy PVA-TISA is indeed a good candidate for ultrafast saturable absorption device.
Yaron Silberberg - One of the best experts on this subject based on the ideXlab platform.
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Femtosecond Pulse shaping using a two dimensional liquid crystal spatial light modulator
Optics Letters, 2007Co-Authors: E Frumker, Yaron SilberbergAbstract:We introduce a programmable, high-rate scanning Femtosecond Pulse shaper based on a two-dimensional liquid crystal on a silicon spatial light modulator (SLM). While horizontal resolution of 1920 addressable pixels provides superior fidelity for generating complex waveforms, scanning across the vertical dimension (1080 pixels) has been used to facilitate at least 3 orders of magnitude speed increase as compared with typical liquid-crystal SLM-based Pulse shapers. An update rate in excess of 100 kHz is demonstrated.
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Adaptive Femtosecond Pulse compression.
Optics letters, 1997Co-Authors: Dvir Yelin, D Meshulach, Yaron SilberbergAbstract:A practical adaptive method for Femtosecond optical Pulse compression is demonstrated experimentally for the first time to our knowledge. The method is robust and capable of handling the general case of Pulse compression, in which the input Pulses are completely uncharacterized or partially characterized.
Keith A. Nelson - One of the best experts on this subject based on the ideXlab platform.
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diffraction based Femtosecond Pulse shaping with a two dimensional spatial light modulator
Optics Letters, 2005Co-Authors: Joshua C Vaughan, Thomas Feurer, Thomas Hornung, Keith A. NelsonAbstract:A new diffraction-based method is proposed and demonstrated for simultaneous shaping of both the phase and amplitude of Femtosecond laser Pulses by use of a phase-only two-dimensional spatial light modulator. The method suppresses certain types of temporal replica features ordinarily observed in Femtosecond Pulse shaping owing to imperfections in modulator devices and allows for multiplexed outputs suitable for use in various applications.
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Femtosecond Pulse shaping and multiple-Pulse spectroscopy
1996Co-Authors: M.m. Wefers, Keith A. NelsonAbstract:Summary form only given. There has been considerable interest recently in Femtosecond Pulse shaping techniques in which a single ultrashort Pulse is converted into a tailored optical wave form. In this presentation, we present recent results of our continued efforts in Femtosecond Pulse shaping and its application to multiple-Pulse spectroscopy and optical control over material responses.
Han Zhang - One of the best experts on this subject based on the ideXlab platform.
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Femtosecond Pulse erbium doped fiber laser by a few layer mos 2 saturable absorber
Optics Letters, 2014Co-Authors: Fuzao Wang, Rui Tang, Wencheng Xu, Chujun Zhao, Han ZhangAbstract:We report on the generation of a Femtosecond Pulse in a fiber ring laser by using a polyvinyl alcohol (PVA)-based molybdenum disulfide (MoS2) saturable absorber (SA). With a saturable optical intensity of 34 MW/cm2 and a modulation depth of ∼4.3%, the PVA-based MoS2 SA had been employed with an erbium-doped fiber ring laser as a mode locker. The mode-locking operation could be achieved at a low pump threshold of 22 mW. A ∼710 fs Pulse centered at 1569.5 nm wavelength with a repetition rate of 12.09 MHz had been achieved with proper cavity dispersion. With the variation of net cavity dispersion, output Pulses with durations from 0.71 to 1.46 ps were obtained. The achievement of a Femtosecond Pulse at 1.55 μm waveband demonstrates the broadband saturable absorption of MoS2, and also indicates that the filmy PVA-based MoS2 SA is indeed a good candidate for an ultrafast saturable absorption device.
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Femtosecond Pulse generation from a topological insulator mode locked fiber laser
Optics Express, 2014Co-Authors: Xuwu Zheng, Wencheng Xu, Han Zhang, Nian Zhao, Chujun ZhaoAbstract:We reported on the generation of Femtosecond Pulse in a fiber ring laser by using a polyvinyl alcohol (PVA)-based topological insulator (TI), Bi2Se3 saturable absorber (SA). The PVA-TI composite has a low saturable optical intensity of 12 MW/cm2 and a modulation depth of ~3.9%. By incorporating the fabricated PVA-TISA into a fiber laser, mode-locking operation could be achieved at a low pump threshold of 25 mW. After an optimization of the cavity parameters, optical Pulse with ~660 fs centered at 1557.5 nm wavelength had been generated. The experimental results demonstrate that the PVA could be an excellent host material for fabricating high-performance TISA, and also indicate that the filmy PVA-TISA is indeed a good candidate for ultrafast saturable absorption device.
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Femtosecond Pulse generation from a topological insulator mode locked fiber laser
arXiv: Optics, 2014Co-Authors: Hao Liu, Chujun Zhao, Han Zhang, Xuwu Zheng, Nian Zhao, Meng Liu, Aiping Luo, Zhichao Luo, Shuangchun WenAbstract:We reported on the generation of Femtosecond Pulse in an anomalous-dispersion fiber ring laser by using a polyvinyl alcohol (PVA)-based Topological Insulator (TI), Bi2Se3 saturable absorber (SA). The PVA-TI composite has a low saturable optical intensity of 12 MW/cm2 and a modulation depth of ~3.9%. By incorporating the fabricated PVA-TISA into a fiber laser, mode-locking operation could be achieved at a low pump threshold of 25 mW. After an optimization of the cavity parameters, optical Pulse with ~660 fs centered at 1557.5 nm wavelength had been generated. The experimental results demonstrate that the PVA could be an excellent host material for fabricating high-performance TISA, and also indicate that the filmy PVA-TISA is indeed a good candidate for ultrafast saturable absorption device.