Results 11 to 20 of about 5,425 (221)
Wafer Scale III-Nitride Deep-Ultraviolet Vertical-Cavity Surface-Emitting Lasers Featuring Nanometer-Class Control of Cavity Length. [PDF]
Adv Sci (Weinh)A DUV‐VCSEL strategy featuring the nanometer‐class control of the cavity length is proposed in the DUV optoelectronic framework based on GaN templates. After the sapphire removal, a self‐terminated etching technology is developed, whereby the cavity length can be accurately determined by epitaxy instead of the fabrication process. As such, a record low
Ji C +18 more
europepmc +2 more sources
Design, fabrication and characterization of a distributed Bragg reflector for reducing the étendue of a wavelength converting system [PDF]
, 2020 In this work, the design, fabrication and characterization are reported for a distributed Bragg reflector (DBR) filter with a specific wavelength and angular dependency, which aims to improve the light collection from a wavelength-converter-based light ...
Beeckman, Jeroen +3 more
core +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
Photonics, 2023 A multispectral superconducting nanowire single-photon detector (SNSPD) that is sensitive to different incident photon wavelength bands, is proposed. The SNSPD consists of a distributed Bragg reflector (DBR), a gold mirror, and two regions employing four
Ping-Han Wu +2 more
doaj +1 more source
Micromachines, 2022 Electromagnetic (EM) absorbers and emitters have attracted much interest because of their versatile applications. A photonic heterostructure composed of silicon carbide (SiC) layer/germanium (Ge) cavity/distributed Bragg reflector (DBR) has been proposed.
Chengxuan Gong, Gaige Zheng
doaj +1 more source
Periodic structures for integrated optics [PDF]
, 1977 This paper deals with the theory and device applications of periodic thin-film waveguides. Topics treated include mode solutions, optical filters, distributed feedback lasers (DFB), distributed Bragg reflector (DBR) lasers, grating couplers, and phase ...
Nakamura, Michiharu, Yariv, Amnon
core +1 more source
Preparation and novel photoluminescence properties of the self-supporting nanoporous InP thin films
Scientific Reports, 2020 Self-supporting nanoporous InP membranes are prepared by electrochemical etching, and are then first transferred to highly reflective (> 96%) mesoporous GaN (MP-GaN) distributed Bragg reflector (DBR) or quartz substrate. By the modulation of bandgap, the
Dezhong Cao +4 more
doaj +1 more source
All-fibre photonic crystal distributed Bragg reflector (PC-DBR) fibre laser
Optics Express, 2003 We describe an Er3+-doped aluminosilicate core photonic crystal fibre laser incorporating distributed Bragg reflectors written by two-photon 193nm irradiation through an optical phase mask as the feedback elements. The laser is diode pumped at 980nm and evidence of dual linewidth laser operation close to threshold is observed.
Canning, J. +5 more
openaire +2 more sources
Characterization of frequency drift of sampled-grating DBR laser module under direct modulation [PDF]
, 2008 The authors demonstrate the drift in frequency of a static sampled-grating distributed Bragg reflector (SG DBR) laser module when it is subjected to direct modulation.
Anandarajah, Prince M. +6 more
core +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