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Oxide-apertured VCSEL with short period superlattice

Novel distributed Bragg reflectors (DBRs) with 4.5 pairs of GaAs/AlAs short period superlattice (SPS) used in oxide-apertured vertical-cavity surface-emitting lasers (VCSELs) were designed. The structure of a 22-period Al0.9Ga0.1 As (69.5 nm)/4.5-pair [GaAs (10 nm)-AlAs (1.9 nm)] DBR w  (本文共2页) 阅读全文>>

《兰州大学学报》2004年02期
兰州大学学报

适用于光发射机设计的实用VCSEL小信号等效电路模型

提出了一个适用于发射机中驱动电路设计的具有较高计算效率、能准确反映不同频率时与驱动电路互作用的VCSEL等效电路模型,用曲线拟合的方法结合惠普网络分析仪测得的VCS...  (本文共4页) 阅读全文>>

《Science China(Information Sciences)》2020年06期
Science China(Information Sciences)

Real-time optical spike-timing dependent plasticity in a single VCSEL with dual-polarized pulsed optical injection

We propose and numerically realize an optical spike-timing dependent plasticity(STDP) scheme by using a single vertical-cavity surface-emitting laser(VCSEL). In the scheme, the VCSEL is subjected to an orthogonally-polarized continuous-wave optical injection(OPCWOI) and dual-polarized pulsed optical injections(DPPOI). Based on the widely used spin-flip model, the response spiking dynamics of VCSEL is numerically stud...  (本文共12页) 阅读全文>>

《Science China(Information Sciences)》2020年06期
Science China(Information Sciences)

Enhanced memory capacity of a neuromorphic reservoir computing system based on a VCSEL with double optical feedbacks

In this paper, a neuromorphic reservoir computing(RC) system with enhanced memory capacity(MC) based on a vertical-cavity surface-emitting laser(VCSEL) subject to double optical feedbacks(DOF)is proposed and investigated numerically. The aim of this study is to explore the MC of the proposed system.For the purpose of comparison, the MC of the VCSEL-based RC system with single optic...  (本文共12页) 阅读全文>>

《Optoelectronics Letters》2019年04期
Optoelectronics Letters

Real-time 850 nm multimode VCSEL to 1 550 nm single mode VCSEL data routing for optical interconnects

Short-reach optical interconnects among massive serves in data centers have attracted extensive research recently. Increasing capacity, cost and power efficiency as well as wavelength switching between data center network nodes are still key challenges for current optical interconnects. In this work, we experimentally demonstrate the real-time intermode optical wavelength switching technique, for high-speed wavelengt...  (本文共5页) 阅读全文>>

《Science China(Information Sciences)》2018年08期
Science China(Information Sciences)

A 70 Gbps NRZ optical link based on 850 nm band-limited VCSEL for data-center intra-connects

Short-reach optical interconnects among servers in data centers have attracted extensive studies recently. High capacity and low cost are two key problems for optical link. In this paper, we demonstrate a band-limited 850 nm vertical cavity surface emitting laser(VCSEL) based optical transmiss...  (本文共7页) 阅读全文>>