Results 21 to 30 of about 30,451 (313)
Sensors, 2016 In this paper, a novel velocimeter based on laser self-mixing Doppler technology has been developed for speed measurement. The laser employed in our experiment is a distributed feedback (DFB) fiber laser, which is an all-fiber structure using only one ...
Shuang Wu +9 more
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High Optical Feedback Tolerance of a Detuned DBR Laser for 10-Gbps Isolator-Free Operation
Photonics, 2022 The optical feedback tolerance (OFT) of a distributed Bragg reflector (DBR) laser was investigated experimentally. The static and modulation performance of the DBR laser under optical feedback was examined by evaluating its relative intensity noise (RIN)
Qiulu Yang +4 more
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A Comparative Study of Thermal Impact on Erbium Doped Distributed Feedback Fiber Laser Output Power
IEEE Photonics Journal, 2020 The temperature dependency of erbium doped distributed feedback fiber laser output performance is experimentally and theoretically investigated with two major pump schemes.
Jian Guo +6 more
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Triple-Wavelength Thulium-Doped Fiber Random Laser Based on Random Fiber Grating
Photonics, 2023 We demonstrate a triple-wavelength thulium-doped fiber random laser using a 10 cm long random fiber grating to provide random distributed feedback and a superimposed fiber Bragg grating as the wavelength-selective mirror.
Lewen Zhou +5 more
doaj +1 more source
IEEE Photonics Journal, 2018 We demonstrate a distributed reflector (DR) laser with the distributed feedback (DFB) section and the distributed Bragg reflector (DBR) section sharing the same multiple-quantum-well structure.
Yuanfeng Mao +9 more
doaj +1 more source
Electronics Letters, 2021 To realise an optical packet switching system, a tunable laser that can achieve high‐speed and wide‐range tuning is required. One candidate, we have studied for this role, is the tunable distributed amplification (TDA)‐distributed feedback (DFB) laser ...
Yuri Niiya +2 more
doaj +1 more source
Solution-processed nanographene distributed feedback lasers [PDF]
Nature Communications, 2019 AbstractThe chemical synthesis of nanographene molecules constitutes the bottom-up approach toward graphene, simultaneously providing rational chemical design, structure-property control and exploitation of their semiconducting and luminescence properties. Here, we report nanographene-based lasers from three zigzag-edged polycyclic aromatics.
Víctor Bonal +10 more
openaire +4 more sources
Comprehensive Investigations on 1053 nm Random Distributed Feedback Fiber Laser
IEEE Photonics Journal, 2017 We design a 1053 nm Yb3+-doped random fiber laser (YRFL) based on the combination of Yb3+ -doped fiber (YDF) and single mode fiber (SMF), in which the YDF provides active gain, while SMF offers random distributed feedback.
Mengqiu Fan +10 more
doaj +1 more source
Random distributed feedback fibre lasers
Physics Reports, 2014 The concept of random lasers making use of multiple scattering in amplifying disordered media to generate coherent light has attracted a great deal of attention in recent years. Here, we demonstrate a fibre laser with a mirrorless open cavity that operates via Rayleigh scattering, amplified through the Raman effect.
Sergei K. Turitsyn +5 more
openaire +2 more sources
Symmetric Step-Apodized Distributed Feedback Fiber Laser With Improved Efficiency
IEEE Photonics Journal, 2019 We propose and demonstrate a symmetric step-apodized distributed feedback (DFB) fiber laser, which has an improved efficiency and a narrow linewidth. This special DFB laser cavity is based on a unique symmetric step-apodized π-phase-shifted fiber ...
Kuikui Guo +7 more
doaj +1 more source