Project supported by the National Natural Science Foundation of China(Grant Nos.61874148,61974141,and 61674020);the Beijing Natural Science Foundation,China(Grant No.4192043);the National Key Research and Development Program of China(Grant No.2018YFB2200104);the Fund from the Beijing Municipal Science&Technology Commission,China(Grant No.Z191100004819012);the Project of the State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications,China(Grant No.IPOC2018ZT01);the 111 Project of China(Grant No.B07005).
The threading dislocations(TDs)in GaAs/Si epitaxial layers due to the lattice mismatch seriously degrade the performance of the lasers grown on silicon.The insertion of InAs quantum dots(QDs)acting as dislocation filt...
Project supported by the National Natural Science Foundation of China(Grant Nos.61874148,61974141,and 61674020);the Beijing Natural Science Foundation,China(Grant No.4192043);the State Key Laboratory of Information Photonics and Optical Communications(Beijing University of Posts and Telecommunications),China(Grant No.IPOC2018ZT01);the 111 Project of China(Grant No.B07005)。
We investigate the thermal stresses for GaAs layers grown on V-groove patterned Si substrates by the finite-element method. The results show that the thermal stress distribution near the interface in a patterned subst...
supported by the National Natural Science Foundation of China(Nos.61874147,61574019,61674020,and 61674018);the Fund of State Key Laboratory of Information Photonics and Optical Communications(No.IPOC2016ZT10);the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.20130005130001);the 111 Project(No.B07005)
An integrated optoelectronic chip pair, which can transmit and receive optical signals simultaneously, is proposed in this Letter. The design and optimization of its key structure, the vertical cavity surface emitting...
supported by the Fund of State Key Laboratory of Information Photonics and Optical Communications(No.IPOC2016ZT10);the National Natural Science Foundation of China(Nos.61574019,61674020,and 61674018);the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.20130005130001);the 111 Project(No.B07005)
In this Letter, a pair of integrated optoelectronic transceiving chips is proposed. They are constructed by integrating a vertical cavity surface emitting laser unit above a positive-intrinsic-negative photodetector u...
funded by the National Natural Science Foundation of China(NSFC)(Nos.61574019,61674020,and 61274044);the 111 Project(No.B07005);the Beijing Municipality Natural Science Foundation(No.4132069);the Program for Changjiang Scholars;Innovative Research Team in University through the Ministry of Education of China(No.IRT0609)
The fabrication and characterization of p-i-n photodiodes integrated with wide spectrum focusing reflectors using nonperiodic strip and concentric-circular subwavelength gratings are presented. The experimental result...
Beijing University of Posts and Telecommunications(BUPT)(IPOC2016ZT01);National Natural Science Foundation of China(NSFC)(61474008,61574019,61674020);International Science&Technology Cooperation Program of China(2011DFR11010);111 Project of China(B07005)
We report on the first electrically pumped continuous-wave(CW) In As/Ga As quantum dot(QD) laser grown on Si with a GaInP upper cladding layer. A QD laser structure with a Ga_(0.51)In_(0.49)P upper cladding layer and ...
Project supported by the National Natural Science Foundation of China(Grant Nos.61274044,61574019 and 61020106007);the National Basic Research Program of China(Grant No.2010CB327600);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20130005130001);the Natural Science Foundation of Beijing,China(Grant No.4132069);the Key International Science and Technology Cooperation Project of China(Grant No.2011RR000100);the 111 Project of China(Grant No.B07005);the Program for Changjiang Scholars and Innovative Research Team in Universities of China(Grant No.IRT0609)
A high-contrast grating(HCG) focusing reflector providing phase front control of reflected light and high reflectivity is proposed and fabricated.Basic design rules to engineer this category of structures are given ...
Project supported partially by the National Natural Science Foundation of China(Grant Nos.61274044 and 61077049);the National Basic Research Program of China(Grant No.2010CB327600);the Program of Key International Science and Technology Cooperation Projects,China(Grant No.2011RR000100);the 111 Project of China(Grant No.B07005);the Specialized Research Fund for the Doctoral Program of China(Grant No.20130005130001);the Natural Science Foundation of Beijing,China(Grant No.4132069)
A top-illuminated circular mesa uni-traveling-carrier photodetector(UTC-PD) is proposed in this paper. By employing Gaussian graded doping in In Ga As absorption layer and In P depleted layer, the responsivity and h...
supported by the National Natural Science Foundation of China(Nos.61274044 and61020106007);the National Basic Research Program of China(No.2010CB327600);the Natural Science Foundational Science and Technology Cooperation Projects(No.2011RR000100);the 111 Project of China(No.B07005);the Fundamental Research Funds for the Central University(No.2013RC1205);the Specialized Research Fund for the Doctoral Program of Higher Education(No.20130005130001)
We fabricate a GaAs-based InGaAs/InGaAsP multiple quantum wells (MQWs) laser at 1.55 pm. Using two-step growth method and thermal cyclic annealing, a thin low-temperature InP layer and a thick InP buffer layer are g...