Results 11 to 20 of about 27,744 (263)
Green Perovskite Distributed Feedback Lasers [PDF]
Scientific Reports, 2017 AbstractA visible perovskite distributed feedback laser is fabricated for the first time. Through the use of nanocrystal pinning, highly luminescent methylammonium lead bromide films are used to produce stable lasers emitting at 550 nm, with a low threshold of 6 µJcm−2.
J. R. Harwell +3 more
openaire +4 more sources
IEEE Photonics Journal, 2016 In this paper, we proposed a cost-effective broadcast signal transmission scheme using a distributed feedback laser diode (DFB-LD) for wavelength-division-multiplexing passive optical network (WDM-PON) systems.
P. C. Peng +6 more
doaj +1 more source
Random lasing in a short Er-doped artificial Rayleigh fiber
Results in Physics, 2020 We report on random lasing observed with 5-m-long Er-doped fiber comprising an array of weak fiber Bragg gratings (FBGs) inscribed in the fiber core and uniformly distributed over the whole fiber length.
S.M. Popov +5 more
doaj +1 more source
IEEE Photonics Journal, 2012 Chaotic dynamics of a semiconductor laser subject to distributed feedbacks from a fiber Bragg grating (FBG) are investigated through detailed simulations. Because of distributed reflections along the FBG, the approach of FBG feedback performs better than
Song-Sui Li, Qing Liu, Sze-Chun Chan
doaj +1 more source
Two-Directional Tuning of Distributed Feedback Film Dye Laser Devices
Micromachines, 2017 We demonstrate a two-directional tuning method of distributed feedback (DFB) film dye laser devices to achieve high quality lasing and a large tuning range. In this work, we proposed a simple method to fabricate a continuous tunable solid-state dye laser
Hongtao Feng +7 more
doaj +1 more source
Sensors, 2023 High-performance erbium-doped DFB fiber lasers are presently required for several sensing applications, whilst the current efficiency record is only a few percent.
Amirhossein Tehranchi, Raman Kashyap
doaj +1 more source
IEEE Photonics Journal, 2022 A novel method to extract the grating coupling coefficient of distributed feedback (DFB) lasers by comparing the theoretical and experimental values of the side mode spacing is demonstrated.
Changda Xu +4 more
doaj +1 more source
Optofluidic distributed feedback dye laser [PDF]
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006 We demonstrated an optofluidic distributed feedback (DFB) dye laser on a poly(dimethylsiloxane) (PDMS) chip. Single-mode operation was obtained with 0.21 nm linewidth. We achieved nearly 60 nm continuously tunable output by mechanically varying the grating period.
Li, Zhenyu +4 more
openaire +2 more sources
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
doaj +1 more source
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
doaj +1 more source