Results 31 to 40 of about 1,856 (216)
Monolithically integrated laser with DBR for wideband and low time delay signature chaos generation
Frontiers in Physics, 2023 Chaotic laser has attracted a large amount of attention due to its broad spectrum, noise-like characteristics, and photonic integrated chaotic semiconductor lasers have further expanded the application field of chaotic laser for their small size and ...
Shuhui Li +6 more
doaj +1 more source
Organic Polymer DBR Laser by Soft Lithography II: Optimization of Distributed Bragg Reflector
Journal of Photopolymer Science and Technology, 2003 We describe detailed analysis and optimization of the photopumped organic polymer distributed Bragg reflector laser having polymer grating fabricated using a replica molding method, which is an imprinting technology often called “soft lithography”, whose advantage is much less damage to materials. After the optimization, the laser oscillation threshold
Seki, Akiko +5 more
openaire +2 more sources
Nanoscale Research Letters, 2009 We have successfully prepared anodized alumina membrane distributed Bragg reflector (DBR) using electrochemical anodization method. The transmission peak of this distributed Bragg reflector could be easily and effectively modulated to cover almost any ...
Zheng WenJun +3 more
doaj +1 more source
IEEE Journal of Microwaves, 2021 We present a 2-port terahertz vector network analyzer (VNA) based on four continuous-wave (CW) photomixers and a pair of telecom-wavelength CW lasers. The presented optoelectronic VNA is free-space coupled and can operate continuously from 0.1 THz to 1 ...
Anuar D. J. Fernandez Olvera +2 more
doaj +1 more source
Micro-transfer-printed III-V-on-silicon C-band distributed bragg reflector laser [PDF]
, 2019 We demonstrate a micro-transfer-printed III-V-on-silicon distributed Bragg reflector (DBR) laser using pre-processed III-V semiconductor optical amplifiers (SOAs).
Sulakshna Kumari +15 more
core +1 more source
Chirp-Compensated DBR Lasers for TWDM-PON Applications
IEEE Photonics Journal, 2015 We propose a novel chirp compensation scheme for directly modulated three-section distributed Bragg reflector (3s-DBR) lasers in applications of the time- and wavelength-division multiplexed passive optical network systems.
Hang Zhao +5 more
doaj +1 more source
Low-frequency vibration measurement by a dual-frequency DBR fiber laser
Photonic Sensors, 2017 A dual-frequency distributed Bragg reflector (DBR) fiber laser based sensor is demonstrated for low-frequency vibration measurement through the Doppler effect.
Bing Zhang +5 more
doaj +1 more source
High-Efficiency Grating Couplers for Pixel-Level Flat-Top Beam Generation
Photonics, 2022 We demonstrate a kind of grating coupler that generates a high quality flat-top beam with a small beamwidth from photonic integrated circuits into free-space.
Zhong-Tao Tian +4 more
doaj +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Regenerated distributed Bragg reflector fiber lasers for high-temperature operation [PDF]
, 2013 This Letter presents distributed Bragg reflector (DBR) fiber lasers for high-temperature operation at 750°C. Thermally regenerated fiber gratings were used as the feedback elements to construct an erbium-doped DBR fiber laser.
Li, M +15 more
core +1 more source