Results 41 to 50 of about 936 (145)

Characterization of uncooled RSOA for upstream transmission in WDM reflective PONs

open access: yesOptics Express, 2012
We investigate on the uncooled RSOA driving parameters in WDM reflective PONs, focusing on an upstream path at 1.25 Gbit/s using pure binary modulation. We show how the optimal values change using direct-detection or self-coherent receivers. In particular, for the latter, the driving point optimization allows a gain of more than 3 dB in terms of ODN ...
S. Straullu   +5 more
openaire   +3 more sources

Lithium Niobate Quadratic Integrated Nonlinear Photonics: Enabling Ultra‐Wide Bandwidth and Ultrafast Photonic Engines

open access: yesNanophotonics, Volume 15, Issue 9, 13 May 2026.
This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian   +7 more
wiley   +1 more source

Amplified spontaneous emission pulses for high‐power supercontinuum generation

open access: yesThe Journal of Engineering, Volume 2016, Issue 3, Page 29-31, March 2016., 2016
The authors demonstrate an incoherent light source based on a reflective semiconductor optical amplifier as pump for high‐power supercontinuum generation for the first time. The obtained power level is about 160 mW and 20 dB spectral bandwidth is around 170 nm.
Huan Huan Liu, Kin Kee Chow
wiley   +1 more source

Amplified Self-Seeding Transmitter Based on RSOAs for Fronthaul

open access: yes, 2014
self-seeding, RSOA, chromatic ...
BRUNERO, MARCO   +7 more
openaire   +2 more sources

WDM/TDM PON bidirectional networks single-fiber/wavelength RSOA-based ONUs layer 1/2 optimization [PDF]

open access: yes, 2013
This Thesis proposes the design and the optimization of a hybrid WDM/TDM PON at the L1 (PHY) and L2 (MAC) layers, in terms of minimum deployment cost and enhanced performance for Greenfield NGPON.
López Pastor, Eduardo Tommy
core   +1 more source

Micro‐Transfer Printed Continuous‐Wave and Mode‐Locked Laser Integration at 800 nm on a Silicon Nitride Platform

open access: yesLaser &Photonics Reviews, Volume 20, Issue 7, 6 April 2026.
A heterogeneous III‐V/SiN platform for lasers at 800 nm is realized using the micro‐transfer printing method. Efficient GaAs gain sections are directly butt‐coupled to SiN waveguides, enabling continuous‐wave and mode‐locked extended‐cavity lasers. The mode‐locked lasers generate highly stable pulse trains with repetition rates up to 9.2 GHz and a ...
Max Kiewiet   +13 more
wiley   +1 more source

Mathematical Verification for Transmission Performance of Centralized Lightwave WDM‐RoF‐PON with Quintuple Services Integrated in Each Wavelength Channel

open access: yesAdvances in OptoElectronics, Volume 2015, Issue 1, 2015., 2015
Wavelength‐division‐multiplexing passive‐optical‐network (WDM‐PON) has been recognized as a promising solution of the “last mile” access as well as multibroadband data services access for end users, and WDM‐RoF‐PON, which employs radio‐over‐fiber (RoF) technique in WDM‐PON, is even a more attractive approach for future broadband fiber and wireless ...
Shuai Chen   +6 more
wiley   +1 more source

Improvement of modulation bandwidth in multisection RSOA for colorless WDM-PON

open access: yesOptics Express, 2009
We demonstrated two-section reflective semiconductor optical amplifier (RSOA) with dramatic improvement of small-signal modulation bandwidth above 10 GHz as colorless source for wavelength division multiplexed-passive optical network (WDM-PON). The device provides the fiber-to-fiber gain of 22.8 dB, 3-dB amplified spontaneous emission (ASE) bandwidth ...
Hyun-Soo, Kim   +5 more
openaire   +2 more sources

Social Dimensions of Resilience in Older Adults: A Systematic Review

open access: yesHealth &Social Care in the Community, Volume 2026, Issue 1, 2026.
Aim To systematically explore the social dimensions of older adult resilience in relation to common stressors. Design A systematic review of quantitative and qualitative evidence including a narrative synthesis of quantitative results, a quantitative synthesis of resilience and social support, and a qualitative meta‐aggregation of qualitative findings.
Eerik Soares Ruokosuo   +3 more
wiley   +1 more source

Reflective Semiconductor Optical Amplifier Chip with Low Ripple for C-Band External Cavity Narrow-Linewidth Laser

open access: yesPhotonics
The main characteristic of a reflective semiconductor optical amplifier chip (RSOA) is that it does not generate optical resonance under electric pumping and maintains the operation state of spontaneous emission.
Shaojie Li   +6 more
doaj   +1 more source

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