A5089787008- Optical Network Technologies
- Photonic and Optical Devices
- Advanced Photonic Communication Systems
- Semiconductor Lasers and Optical Devices
- Advanced Optical Network Technologies
- Semiconductor Quantum Structures and Devices
- Solid State Laser Technologies
- Laser Design and Applications
- Spectroscopy and Laser Applications
- Advanced Fiber Optic Sensors
- Advanced Fiber Laser Technologies
- Photorefractive and Nonlinear Optics
- Gyrotron and Vacuum Electronics Research
- GaN-based semiconductor devices and materials
- Optical Wireless Communication Technologies
- Astro and Planetary Science
- Spacecraft Design and Technology
- Spacecraft and Cryogenic Technologies
- Planetary Science and Exploration
- Ocular and Laser Science Research
- Particle accelerators and beam dynamics
- Power Line Communications and Noise
- Advanced optical system design
- Advanced Data Storage Technologies
- Space Satellite Systems and Control
Infinera (United States)
2011-2024
Voss Scientific (United States)
2017
Nokia (United States)
2005
Etegent Technologies (United States)
1994-2005
Spectra Research (United States)
1985-2005
Honeywell (United States)
2002
Laboratory for Atmospheric and Space Physics
2002
Allied Services
1994
A paradigm shift in optical communication networks is proposed, with the introduction of a new ecosystem devices and components capability transforming current point-to-point (with their entailed, limiting, electrical aggregation) into flexible, scalable cost-effective point-to-multipoint networks. In architecture, which better aligns hub-and-spoke traffic patterns observed today's metro access network segments, interoperability across variety transceivers operating at different speeds...
The various topologies, traffic patterns and cost targets of optical networks have prevented the deployment end-to-end solutions across multi-domains, optimization network as a whole. consequent limitations in flexibility, scalability, adaptability will become increasingly important with new applications, such 5G/6G. Coherent transceivers based on digital subcarrier multiplexing (DSCM) are proposed to address these current constraints. In particular, DSCM allows (i) design high-capacity...
A laser diode pumped Tm3+-doped ZBLAN fiber upconversion is demonstrated with blue output power levels up to 106 mW. Differential optical-to-optical conversion efficiencies 30% are measured respect pump coupled into the fiber. single spatial mode beam demonstrated, an M2 value of 1.4.
A numerical model for flared semiconductor optical amplifiers that incorporates the effects of gain and index saturation thermal is presented. Theoretical near fields, far quadratically phase-corrected fields are The results indicate laser capable coherent diffraction-limited output powers in excess 1 W CW.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Large-scale photonic integrated circuits (LS PICs) have been extensively deployed throughout the fiber optic communication network. This paper discusses properties of LS PICs, interaction between them, and what is necessary to create an optical transport system that fully utilizes PIC. </para>
Metro aggregation is one of the fastest growing segments in telecommunications terms data traffic. At intersection core and access, where coherent modules compete with direct detection technology, high capacity must be provided at low cost power, enhanced scalability flexibility. Real-life Telecom Italia Mobile metro networks are examined their design planning optimized. The analysis supported by techno-economics, which compares two solutions: traditional point-to-point (P2P) digital...
The output of seven laser-diode arrays, combined by a bundle optical fibers, was used to end pump Nd:YAG solid-state laser. Under rated operation 1 A/diode, maximum TEM(00) single-mode power 660 mW obtained with 4.4% total electrical-to-optical conversion efficiency.
Phased-array lasers with real-refractive-index waveguides have been grown by metalorganic chemical vapour deposition. The index guides are coupled via ‘Y’-type coupling regions and the laser array emits all elements in phase. Powers of over 400 mW obtained no indication a change far-field pattern.
Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text P. Evans, M. Fisher, R. Malendevich, A. James, Studenkov, G. Goldfarb, T. Vallaitis, Kato, Samra, S. Corzine, E. Strzelecka, Salvatore, F. Sedgwick, Kuntz, V. Lal, D. Lambert, Dentai, Pavinski, J. Zhang, B. Behnia, Bostak, Dominic, Nilsson, Taylor, Rahn, Sanders, H. Sun, K. -. Wu, Pleumeekers, Muthiah, Missey, Schneider, Stewart, Reffle, Butrie, Nagarajan, C. Joyner,...
A monolithic dual‐polarisation quadrature phase shift keying transmitter is demonstrated for operation at 2.25 Tbit/s over 40 wavelengths and 1 THz of spectral bandwidth. The single‐chip InP‐based employs tunable distributed feedback lasers, 80 nested Mach‐Zehnder modulators other elements to provide more than 1700 integrated photonic functions.
Point-to-multipoint (P2MP) optical coherent transceivers, which take advantage of digital subcarrier multiplexing, can greatly simplify design, planning and operations in next-generation high-capacity metro aggregation networks.In this paper, we investigate their utilization over two complex network scenarios: urban/industrial suburban/rural. We provide evidence that with P2MP technology, it is possible to achieve a 32% Capital Expenditure (CAPEX) savings compared the use traditional...
The short-wavelength limits of AlGaInP visible laser diodes with Al/sub 0.5/In/sub 0.5/P cladding layers, and Ga/sub x/In/sub 1/spl minus/x/P single quantum well (QW) active regions are investigated. Good performance is maintained throughout the 620 nm band, but characteristics rapidly degrade in 610 band. Biaxial-compression -tension were compared, case tension yielding slightly better performance. Using a 25 /spl Aring/ 0.45/In/sub 0.55/P QW, wavelength 614 was obtained, while 50...
A 10 channel transmitter and receiver DWDM photonic integrated circuit pair is demonstrated that capable of transmitting receiving data at 40 Gbit/s per for an aggregate communication rate 400 Gbit/s.
Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text P. Evans, M. Fisher, R. Malendevich, A. James, Studenkov, G. Goldfarb, T. Vallaitis, Kato, Samra, S. Corzine, E. Strzelecka, Salvatore, F. Sedgwick, Kuntz, V. Lal, D. Lambert, Dentai, Pavinski, J. Zhang, B. Behnia, Bostak, Dominic, Nilsson, Taylor, Rahn, Sanders, H. Sun, K. -. Wu, Pleumeekers, Muthiah, Missey, Schneider, Stewart, Reffle, Butrie, Nagarajan, C. Joyner,...
In this work, a 10-wavelength, polarization-multiplexed, monolithically integrated InP coherent QPSK transmitter PIC is demonstrated to operate at 112 Gb/sec per wavelength and total chip superchannel bandwidth of 1.12 Tb/s. This demonstration suggests that increasing data capacity multi-Tb/s possible likely in the future.
A monolithic tapered-stripe unstable resonator laser diode operating at 952 nm wavelength is demonstrated to emit greater than 5.0 W in a diffraction-limited radiation pattern under pulsed conditions.
A novel monolithically integrated master oscillator power amplifier with a distributed amplifier/grating output coupler is demonstrated which emits 370 mW in single-frequency diffraction-limited beam without any form of active phase control. The results guided mode that saturates along the direction propagation, providing uniform carrier density to preserve flatness radiated front.
Fully integrated monolithic, multi-channel InP-based coherent receiver PICs and transceiver modules with extended C-band tunability are described. These operate at 33 44 Gbaud per channel under dual polarization (DP) 16-QAM modulation. Fourteen-channel monolithic InP show integration data rate scaling capability to DP modulation for combined 4.9 Tb/s total capacity. Six simultaneous operation of a commercial module is demonstrated variety formats including >1.2Tbit/s aggregate
We propose combining point-to-multipoint coherent transceivers with a hybrid ROADM/filterless line system to enable flatter IP-architecture for cost-effectively scaling metro-core/access networks. Considering various traffic and link engineering scenarios, we show CAPEX savings exceeding 40%.
We report on the first real-time operation of coherent point-to-multipoint in high-speed fiber-optic communications. The broadcast and aggregation network consists a 400 Gb/s hub transceiver achieving post-FEC error-free communication with 4 × 100 leaf nodes, 5 – 50 km away.
A real-time implementation of a coherent optical pluggable module using digital sub-carrier (DSC) multiplexing has recently been demonstrated. Whilst these modules can support traditional point-to-point (P2P) applications, similar to e.g., 400ZR(+) – with at least the same performance, it is point-to-multi-point (P2MP) functionality that differentiates their capabilities from single-carrier implementation. The superior performance transmission and its insensitivity link effects, in...
Broad area travelling wave GaAlAs SQW optical amplifiers have been fabricated and characterised. Using a 600 μm wide 1000 long double pass amplifier, 12 W of peak pulsed output power was achieved with 0.08° diffraction limited far-field lobe. Small signal gain 31 dB measured in 400 active device.
An antiguide laser diode array has been fabricated which radiates a predominantly single lobe far field with full-width at half-maximum of 1.5 times the diffraction limit continuous wave output power 500 mW differential quantum efficiency 50%. By spectrally resolving device high operating powers it is shown that two longitudinal modes correspond to adjacent lateral array. The operation second mode result spatial hole-burning first optical mode.