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Dive into the research topics where Jonathon S. Barton is active.

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Featured researches published by Jonathon S. Barton.


Optics Express | 2011

Ultra-low-loss high-aspect-ratio Si3N4 waveguides

Jared F. Bauters; Martijn J. R. Heck; Demis D. John; Daoxin Dai; Ming-Chun Tien; Jonathon S. Barton; Arne Leinse; Rene Heideman; Daniel J. Blumenthal; John E. Bowers

We characterize an approach to make ultra-low-loss waveguides using stable and reproducible stoichiometric Si3N4 deposited with low-pressure chemical vapor deposition. Using a high-aspect-ratio core geometry, record low losses of 8-9 dB/m for a 0.5 mm bend radius down to 3 dB/m for a 2 mm bend radius are measured with ring resonator and optical frequency domain reflectometry techniques. From a waveguide loss model that agrees well with experimental results, we project that 0.1 dB/m total propagation loss is achievable at a 7 mm bend radius with this approach.


Optics Express | 2011

Planar waveguides with less than 0.1 dB/m propagation loss fabricated with wafer bonding

Jared F. Bauters; Martijn J. R. Heck; Demis D. John; Jonathon S. Barton; Christiaan M. Bruinink; Arne Leinse; Rene Heideman; Daniel J. Blumenthal; John E. Bowers

We demonstrate a wafer-bonded silica-on-silicon planar waveguide platform with record low total propagation loss of (0.045 ± 0.04) dB/m near the free space wavelength of 1580 nm. Using coherent optical frequency domain reflectometry, we characterize the group index, fiber-to-chip coupling loss, critical bend radius, and propagation loss of these waveguides.


IEEE Photonics Technology Letters | 2000

Design of sampled grating DBR lasers with integrated semiconductor optical amplifiers

Beck Mason; Jonathon S. Barton; Greg A. Fish; Larry A. Coldren; Steven P. DenBaars

High output powers and wide range quasicontinuous tuning have been achieved in a sampled-grating distributed Bragg reflector laser with an integrated semiconductor-optical-amplifier. Using an amplifier with a curved passive output waveguide to suppress back reflection, we have achieved a quasicontinuous tuning range of over 50 nm and peak output powers greater than +8 dBm. Optimizing the device structure and the sampled-grating mirror design has enabled tuning ranges of up to 72 nm in devices without amplifiers.


IEEE Journal of Selected Topics in Quantum Electronics | 2002

A quantum-well-intermixing process for wavelength-agile photonic integrated circuits

Erik J. Skogen; Jonathon S. Barton; Steven P. DenBaars; Larry A. Coldren

Wavelength-agile photonic integrated circuits are fabricated using a one-step ion implantation quantum-well intermixing process. In this paper, we discuss, the issues in processing optimized widely tunable multisection lasers using this technique and present the results achieved using this process. This quantum-well intermixing process is general in its application and can be used to monolithically integrate a wide variety of optoelectronic components with widely tunable lasers.


Journal of Lightwave Technology | 2005

Widely tunable monolithically integrated all-optical wavelength converters in InP

Milan L. Mašanović; Vikrant Lal; Joseph A. Summers; Jonathon S. Barton; Erik J. Skogen; Lavanya Rau; Larry A. Coldren; Daniel J. Blumenthal

Design, fabrication, and characterization of monolithically integrated widely tunable all-optical wavelength converters in InP is reported. The devices are based on the SGDBR laser integrated with different MZI-SOA wavelength converters. Error-free wavelength conversion at 2.5 Gbps was demonstrated over 50 nm input and 22 nm output wavelength range. Static operation, extinction ratio enhancement, signal reamplification, dynamic range, and chirp properties were characterized as well.


IEEE Journal of Selected Topics in Quantum Electronics | 2003

A widely tunable high-speed transmitter using an integrated SGDBR laser-semiconductor optical amplifier and Mach-Zehnder modulator

Jonathon S. Barton; Erik J. Skogen; Milan L. Mašanović; Steven P. DenBaars; Larry A. Coldren

The first integrated sampled-grating distributed Bragg reflector (SGDBR) laser-semiconductor optical amplifier-Mach-Zehnder modulator transmitter is presented. Devices have 3 dB bandwidth ranging from 13-18 GHz corresponding to electrodes lengths that range between 200-300 /spl mu/m long. This corresponds to a V/sub pi/ of 4.8-6.2 V.


IEEE Photonics Technology Letters | 2003

Monolithically integrated Mach-Zehnder interferometer wavelength converter and widely tunable laser in InP

Milan L. Mašanović; Vikrant Lal; Jonathon S. Barton; Erik J. Skogen; Larry A. Coldren; Daniel J. Blumenthal

The first monolithically integrated widely tunable wavelength converter, consisting of a sampled-grating distributed-Bragg-reflector laser (SGDBR) and an SOA-based Mach-Zehnder interferometer, is reported. The integration process requires only a single regrowth step. Static extinction ratios (electrical/optical) better than 18 dB and 13 dB, respectively, were measured over a 22-nm wavelength tuning range. Digital wavelength conversion at bit rate of 2.5 Gb/s was demonstrated to be error free, with 2.6-dB power penalty.


IEEE Journal of Selected Topics in Quantum Electronics | 2003

Postgrowth control of the quantum-well band edge for the monolithic integration of widely tunable lasers and electroabsorption modulators

Erik J. Skogen; James W. Raring; Jonathon S. Barton; Steven P. DenBaars; Larry A. Coldren

We describe a quantum-well intermixing process for the monolithic integration of various devices, each with a unique band edge. The process involves a single ion implant followed by multiple etch and anneal cycles. We have applied this method to design and fabricate widely tunable sampled-grating distributed Bragg reflector lasers with integrated electroabsorption modulators. The devices employ three unique band edges, and demonstrate exceptional tuning, gain, and absorption characteristics.


IEEE Photonics Technology Letters | 2004

Design and performance of a monolithically integrated widely tunable all-optical wavelength converter with independent phase control

Milan L. Mašanović; Vikrant Lal; Joseph A. Summers; Jonathon S. Barton; Erik J. Skogen; Larry A. Coldren; Daniel J. Blumenthal

We report on a new widely tunable all-optical wavelength converter consisting of a sampled-grating distributed Bragg reflector (SGDBR) laser monolithically integrated with a Mach-Zehnder interferometer semiconductor optical amplifier (MZI-SOA)-based wavelength converter. The new design incorporates independent phase control of the interferometer and SOAs for amplification of the SGDBR output. For the first time, error-free operation for data rates of up to 10 Gb/s is reported for 35-nm output tuning range. The high-speed operation is enabled by high photon density in the SOA due to large power transfer from the on-board tunable laser and amplifiers. We also report on device sensitivity of -10 dBm at 2.5 Gb/s and -5 dBm at 10 Gb/s, with an average output power of 0 dBm.


IEEE Photonics Technology Letters | 2005

High saturation power and high gain integrated photoreceivers

Anna Tauke-Pedretti; Matthew M. Dummer; Jonathon S. Barton; Matthew N. Sysak; James W. Raring; Larry A. Coldren

A novel monolithically integrated semiconductor optical amplifier (SOA) receiver is presented. This receiver implements a flared SOA and tapered quantum-well detector. SOAs exhibited 22-dB unsaturated gain and 15.7-dBm output power at the 1-dB gain compression point while the receiver demonstrated 15-GHz bandwidth and -10.5-dBm sensitivity.

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Erik J. Skogen

Sandia National Laboratories

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Anna Tauke-Pedretti

Sandia National Laboratories

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John E. Bowers

University of California

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