Results 31 to 40 of about 2,950,365 (215)

Stable and Wavelength-Tunable Self-Injected Reflective Semiconductor Optical Amplifier-Based Fiber Laser

open access: yesIEEE Photonics Journal, 2015
In this investigation, we propose and demonstrate a stable and wavelength-tunable self-injected reflective semiconductor optical amplifier (RSOA)-based laser by using the Faraday rotator mirror (FRM) and the fiber mirror (FM) serving as a reflected ...
Yu-Fu Wu   +4 more
doaj   +1 more source

MDM-TDM PON Utilizing Self-Coherent Detection-Based OLT and RSOA-Based ONU for High Power Budget

open access: yesIEEE Photonics Journal, 2016
A cost-effective mode-division-multiplexing and time-division-multiplexing passive optical network (MDM-TDM PON) utilizing a self-coherent detection for upstream signal at optical line terminal (OLT) and a high-gain reflective semiconductor optical ...
Yuanxiang Chen   +11 more
doaj   +1 more source

RSOA Intensity Modulator Frequency Chirp-Enhanced Optical OFDM PON Performance

open access: yesIEEE Photonics Journal, 2015
A reflective semiconductor optical amplifier intensity modulator (RSOA-IM) frequency chirp considerably increases the system frequency response of an intensity-modulation and direct-detection (IMDD) PON system over the passband signal spectral region ...
B. Y. Cao   +5 more
doaj   +1 more source

Novel design for noise controlled semiconductor optical amplifier [PDF]

open access: yes, 2009
The use of semiconductor optical amplifiers (SOA) in optical communications networks has so far been limited due to their inherent large noise figure (NF) compared to Erbium Doped Fibre Amplifiers.
Frederic Surre   +11 more
core   +3 more sources

Theoretical Analysis of Directly Modulated Reflective Semiconductor Optical Amplifier Performance Enhancement by Microring Resonator-Based Notch Filtering

open access: yesApplied Sciences, 2018
We demonstrate the feasibility of using a single microring resonator (MRR) as optical notch filter for enabling the direct modulation of a reflective semiconductor optical amplifier (RSOA) at more than tripled data rate than possible with the RSOA alone.
Zoe V. Rizou, Kyriakos E. Zoiros
doaj   +1 more source

Hybrid integrated external cavity laser with a 172-nm tuning range

open access: yesAPL Photonics, 2022
Chip-scale lasers with a wide tunable range and a narrow linewidth have rich applications in optical communications, sensing, and light detection and ranging systems.
Yuyao Guo   +6 more
doaj   +1 more source

Off-set Filtering Effect in SOA Based Optical Access Network [PDF]

open access: yesRadioengineering, 2016
In-line and reflective semiconductor optical amplifiers (SOA and RSOA) can be effectively utilized as external optical intensity modulators. However the limited modulation bandwidth affects the application possibilities, because next generation access ...
E. Udvary
doaj  

Investigation of in-situ parameter control in novel semiconductor optical amplifiers [PDF]

open access: yes, 2012
Fibre optic networks form the backbone of modern communications systems. As demand for ever increasing bandwidth continues to grow, technologies that enable the expansion of optical networks will be the key to future development.
Carney, Kevin
core   +2 more sources

Bit- and Power-Loading—A Comparative Study on Maximizing the Capacity of RSOA Based Colorless DMT Transmitters

open access: yesApplied Sciences, 2017
We present a comparative study of the capacity increase brought by bit- and power-loading discrete multi-tone (DMT) modulation for low-cost colorless transmitters.
Simon Arega Gebrewold   +4 more
doaj   +1 more source

Centralized-Light-Source Two-Way PAM8/PAM4 FSO Communications With Parallel Optical Injection Locking Operation

open access: yesIEEE Access, 2019
For the first time up to our knowledge, a centralized-light-source two-way eight-level pulse amplitude modulation (PAM8)/four-level pulse amplitude modulation (PAM4) free-space optical (FSO) communication with parallel optical injection-locked vertical ...
Wen-Shing Tsai   +4 more
doaj   +1 more source

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