Results 21 to 30 of about 3,478 (154)
Electronics Letters, Volume 57, Issue 3, Page 142-144, February 2021., 2021 Abstract Brillouin optical time‐domain reflectometry (BOTDR) has the advantage of requiring access to only one end of the sensing fibre, which is an important property for some applications. The coherent detection of spontaneous Brillouin scattering allows high sensitivity of temperature/strain measurements, close to one of the well‐known Brillouin ...
Pierre Clement +3 more
wiley +1 more source
OSNR Monitoring for NRZ-PSK Signals Using Silicon Waveguide Two-Photon Absorption
IEEE Photonics Journal, 2011 We study the use of two-photon absorption (TPA) in a silicon optical waveguide for measuring the optical signal-to-noise ratio (OSNR) of a nonreturn to zero phase-shift keying (NRZ-PSK) signal.
Ke Xu +7 more
doaj +1 more source
IET Optoelectronics, Volume 15, Issue 1, Page 8-19, February 2021., 2021 ABSTRACT Numerical investigation was done for the response of two semiconductor optical amplifiers (SOA) to direct modulation using three of the most commonly employed intensity modulation formats: non‐return‐to‐zero (NRZ), duobinary (DB) and quaternary pulse amplitude modulation (PAM‐4).
Ramón Gutiérrez‐Castrejón +3 more
wiley +1 more source
IEEE Photonics Journal, 2018 The reference optical spectrum (ROS) based in-band optical signal-to-noise-ratio (OSNR) monitoring methods are accurate and inherently robust to fiber chromatic dispersion and polarization mode dispersion.
Guo Yin +3 more
doaj +1 more source
Wavelength conversion for WDM communication systems using four-wavemixing in semiconductor optical amplifiers [PDF]
, 1997 Four-wave mixing (FWM) in semiconductor optical amplifiers is an attractive mechanism for wavelength conversion in wavelength-division multiplexed (WDM) systems since it provides modulation format and bit rate transparency over wide tuning ranges.
Geraghty, David F. +5 more
core +1 more source
Universal Method for Constructing Fault‐Tolerant Optical Routers Using RRW
Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021 High‐speed data transmission enabled by photonic network‐on‐chip (PNoC) has been regarded as a significant technology to overcome the power and bandwidth constraints of electrical network‐on‐Chip (ENoC). This has given rise to an exciting new research area, which has piqued the public’s attention.
Meaad Fadhel +3 more
wiley +1 more source
Proactive and Nondisruptive Channel Probing for Wavelength Switching in Optical Transmission
IEEE Photonics Journal, 2017 Proactive and nondisruptive channel probing is investigated for the measurement of channel power, amplifier channel gain, and optical signal-to-noise ratio (OSNR) without disrupting established wavelength-division multiplexed channels.
Weiyang Mo +3 more
doaj +1 more source
Considering Transmission Impairments in Wavelength Routed Networks [PDF]
, 2005 — We consider dynamically reconfigurable wavelength routed networks in which lightpaths carrying IP traffic are on demand established. We face the Routing and Wavelength Assignment problem considering as constraints the physical impairments that arise in
Cardillo, R. +2 more
core +2 more sources
All-optical 2R regeneration using the hysteresis in a distributed feedback laser diode [PDF]
, 2010 A broadband optical 2R regenerator based on a single distributed feedback laser is demonstrated for nonreturn to zero signals at a bitrate of 10 Gb/s. A semi-analytical approach for the influence of hysteresis on the transfer function of a 2R regenerator
Baets, Roel +5 more
core +2 more sources
IEEE Photonics Journal, 2015 We proposed and experimentally demonstrated a programmable optical signal-to-noise ratio (OSNR) monitoring scheme by using linearly chirped fiber Bragg grating (LCFBG) and a commercial thermal printer head.
Ruoxu Wang +8 more
doaj +1 more source