Search Results - "Marciante, John R."

Impact of finite bandwidth on PRBS-modulated optical spectra by Stepien, Witold, Marciante, John R.

“…Applying a pseudo-random binary sequence (PRBS) to phase modulators is a recent development in the broadening of optical spectra of laser sources to defeat…”
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Three fiber designs for mitigating thermal mode instability in high-power fiber amplifiers by Leidner, Jordan P., Marciante, John R.

“…An improved fiber amplifier model for simulating thermal mode instability (TMI) in high-power fiber amplifiers is developed. The model is applied to reveal new…”
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Observation of Spatial Coherence Collapse in High-Power, Broad-Area Lasers Using Fiber-Assisted Self-Heterodyning by Leidner, Jordan P., Marciante, John R.

“…In this work, a high-resolution, self-heterodyne,RF measurement of a broad-area laser is spatially resolved using an optical fiber at a range of power levels…”
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Cavity requirements for realizing high-efficiency, Tm/Ho-doped, coaxial fiber laser systems by Boccuzzi, Krysta A., Newburgh, G. Alex, Marciante, John R.

“…Coaxial fiber lasers, consisting of a Ho-doped core surrounded by a Tm-doped ring, are studied via experiments and numerical simulations. Previous simulations…”
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Tm/Ho-doped fiber laser systems using coaxial fiber by Boccuzzi, Krysta A., Newburgh, G. Alex, Marciante, John R.

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Spectral Narrowing and Stabilization of 10-W Broad-Area Laser With Fiber Pump Delivery System by Perez, Jose C., Leidner, Jordan P., Marciante, John R.

“…The emission spectrum of a 10-W commercial broad-area laser operated at full power was narrowed and stabilized by coupling an off-axis portion of its far-field…”
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Gain Filtering for Single-Spatial-Mode Operation of Large-Mode-Area Fiber Amplifiers by Marciante, J.R.

“…Gain filtering of higher order modes in large-mode-area fibers is an extremely robust method for providing diffraction-limited performance regardless of core…”
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Filamentation-Free Broad-Area Laser Design for Efficient Coupling to Single-Mode Fiber by Leidner, Jordan P., Marciante, John R.

“…Although the quest for high-power, diffraction-limited, semiconductor lasers has arguably met with limited success, the drive for higher brightness diode…”
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Semi-guiding high-aspect-ratio core (SHARC) fiber providing single-mode operation and an ultra-large core area in a compact coilable package by Rockwell, David A, Shkunov, Vladimir V, Marciante, John R

“…A new class of optical fiber is presented that departs from the circular-core symmetry common to conventional fibers. By using a high-aspect-ratio (~30:1)…”
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Distributed Waveform Generator: A New Circuit Technique for Ultra-Wideband Pulse Generation, Shaping and Modulation by Yunliang Zhu, Zuegel, J.D., Marciante, J.R., Hui Wu

“…A new circuit technique, the distributed waveform generator (DWG), is proposed for low-power ultra-wideband pulse generation, shaping and modulation. It…”
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Beam Quality Improvement in Broad-Area Semiconductor Lasers via Evanescent Spatial Filtering by Leidner, J. P., Marciante, J. R.

“…In semiconductor lasers, the unpumped cladding region outside the optical waveguide is nominally lossy. Since the evanescent tail of higher-order waveguide…”
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Semi-guiding high-aspect-ratio core (SHARC) fiber amplifiers with ultra-large core area for single-mode kW operation in a compact coilable package by Marciante, John R, Shkunov, Vladimir V, Rockwell, David A

“…A new class of optical fiber, the SHARC fiber, is analyzed in a high-power fiber amplifier geometry using the gain-filtering properties of confined-gain…”
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All-Fiber Optical Faraday Mirror Using 56-wt%-Terbium-Doped Fiber by Lei Sun, Shibin Jiang, Marciante, John R

“…An all-fiber optical Faraday mirror that consists of a fiber Faraday rotator and a fiber Bragg grating is demonstrated. The fiber Faraday rotator uses a…”
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Power Scaling of Single-Frequency Hybrid Brillouin/Ytterbium Fiber Lasers by Weihua Guan, Marciante, John R

“…A coupled-wave rate-equation model, including multiple-order stimulated Brillouin scattering (SBS), is used to study power scaling of hybrid…”
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An Optical Replicator for Single-Shot Measurements at 10 GHz With a Dynamic Range of 1800:1 by Donaldson, W.R., Marciante, J.R., Roides, R.G.

“…High-dynamic-range, single-shot pulse shapes were measured by temporally stacking pulses in a passive, fiber-optic network. The 256 replicas were combined to…”
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Spectral Narrowing and Stabilization for Broad-Area Lasers via Modified Delivery Fiber by Leidner, Jordan P., Marciante, John R.

“…A proof-of-concept experiment for fiber-based broad-area laser stabilization is experimentally demonstrated using coupling optics and a 1-nm wide, 98%…”
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Fiber pump-delivery system for spectral narrowing and wavelength stabilization of broad-area lasers by Leidner, Jordan P., Marciante, John R.

“…Off-axis far-field coupling of a broad-area laser to a single-mode fiber containing a fiber Bragg grating is used for spatio-spectral filtering. This results…”
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Integrated Silicon PIN Photodiodes Using Deep N-Well in a Standard 0.18- \mu m CMOS Technology by Ciftcioglu, Berkehan, Zhang, Lin, Zhang, Jie, Marciante, John R., Zuegel, Jonathan, Sobolewski, Roman, Wu, Hui

“…This paper studies integrated silicon photodiodes (PDs) implemented in standard CMOS technologies. A new PIN PD structure utilizing deep n-well is presented,…”
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Tapered Multi-Mode Interference Waveguide for High-Power Self-Organizing Single-Mode Semiconductor Laser Arrays by Leidner, J P, Marciante, J R

“…A 1 × N, tapered, multi-mode interference (MMI) coupler is numerically studied for use in a self-organizing semiconductor laser-array system. The MMI structure…”
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Comments on "Beam Quality Factor of Higher Order Modes in a Step-Index Fiber" by Jiang, Z., Marciante, J.R.

“…In a previously published paper [1], equations are presented that predict the beam-quality factor of beams from multimode fibers. We demonstrate that the…”
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