Temperature dependent characteristics of 980 nm two-dimensional bottom emitting VCSEL arrays

High power bottom-emitting In0.2Ga0.8As/GaAs 4*4 two-dimensional vertical-cavity surface-emitting laser (VCSEL) arrays, with high output power in the 980-nm wavelength regime are reported. At room temperature, the 16-element array with 200-micron aperture size of individual elements shows a continuous wave output power of 1.21 W with a lasing wavelength of 981.9 nm. Temperature dependent characteristics of VCSEL arrays with 90-micron aperture size of individual elements are investigated. The las

Avago DS_AFCD-V64JZE_28G 1x4 VCSEL_2016-FEB 29.pdf

:The AFCD-V64JZE 28 Gb/s 1x4 array Oxide VCSEL is a 150 m thick, 850nmwavelength, GaAs based Vertical Cavity Surface Emitting Laser (VCSEL)array, designed to be used in extended reach 100 Gb Ethernet and 4x32GFibre Channel optical links over multimode fiber. The Avago VCSEL isengineered for superior dynamic performance and optical power overtemperature. The VCSEL arrays have both anode contacts and commoncathode contacts on the top side of the chip for convenient wire bonding. Highspeed operation is achieved at low currents, which makes the VCSEL arraysparticularly well suited for applications where power consumption and heatdissipation must be minimized. The VCSEL produces a circularly symmetric,narrow beam which, with appropriate lenses, enables the optical power to becoupled efficiently into 50/ 125um and 62.5/ 125um multi-mode fiber.

Fabrication of high-power VCSEL with radial bridge electrodes

We report the fabrication of a novel high-power vertical-cavity surface-emitting laser (VCSEL) with radial bridge electrodes in this letter. The analysis shows that the radial bridge electrodes can reduce the p-type distributed Bragg reflector (p-DBR) electric and thermal resistance, and improve the device beam quality. The high-power radial brigde electrode VCSELs with 200-\\mum aperture have been made and tested. The testing results show that the differential resistance of the VCSEL is 0.43 \\Om

Polarization-locked VCSEL with PM f iber pigtail for quantum communication

Quantum communication is a new technology requiring a stable and reliable laser source for communication security. A new kind of polarization-locked vertical-cavity surface-emitting laser (VCSEL) with polarization maintaining (PM) fiber pigtail is fabricated as a decoy state laser source. The VCSEL is packaged in a standard butterfly box integrated with thermoelectric coder (TEC) and thermistor. The optical pulse width of full-width at half-maximum (FWHM) is smaller than 400 ps with a 100-MHz on

High single-fundamental-mode power VCSEL integrated with alternating aluminum content micro-lens

High single-fundamental-mode power VCSEL integrated with alternating aluminum content micro-lens

基于正交光注入增益开关850 nm-VCSEL获取双路宽带光学频率梳的方案

提出了基于正交光注入增益开关850 nm垂直腔面发射激光器(850 nm-VCSEL)获取梳距可调双路宽带光学频率梳(OFC)的方案,通过数值仿真研究了系统参量对OFC性能的影响。在该方案中,首先采用大信号电流调制850 nm-VCSEL使其呈增益开关状态,此时Y偏振分量激射并呈周期脉冲状态,而X偏振分量被抑制,可以获得一路偏振沿Y方向的OFC(Y-OFC);进一步引入偏振方向沿X方向的注入光(即正交光注入),在合适的注入参数条件下,增益开关850 nm-VCSEL中的X偏振分量被激射并呈周期脉冲动力学状态,且输出的X偏振分量具有与Y偏振分量强度相当的光谱分布,从而可以获得两路正交的OFC。数值仿真的结果表明:受到调制频率fm=4.2 GHz、调制深度m=0.75的大信号电流调制的850 nm-VCSEL,在频率失谐 v=10.0 GHz的正交光注入下,通过选取合适的注入光场振幅Einj可使激光器输出带宽(功率变化在10 dB范围内)超过105.0 GHz的双路宽带OFC。借助于正交光注入下增益开关850 nm-VCSEL输出的X偏振分量和Y偏振分量的光谱分布,确定了获得双路OFC所需

用于Cs原子感测的894.6 nm VCSEL在高温下稳定的单模运行

用于Cs原子感测的894.6 nm VCSEL在高温下稳定的单模运行

A review of progress on nano-aperture VCSEL

This paper reviews the progress on nano-aperture vertical-cavity surface-emitting lasers (VCSELs). The design, fabrication, and polarization control of nano-aperture VCSELs are reviewed. With the nano-aperture evolving from conventional circular and square aperture to unique C-shaped, H-shaped, I-shaped, and bowtie-shaped aperture, both the near-field intensity and near-field beam confinement from nano-aperture VCSELs are significantly improved. As a high-intensity compact light source with sub-

980nm VCSEL线性阵列及其高温工作特性

980nm VCSEL线性阵列及其高温工作特性

通过基于简化MLSE算法的有限带宽850nm-VCSEL链路实现超过60 Gbps的NRZ传输

通过基于简化MLSE算法的有限带宽850nm-VCSEL链路实现超过60 Gbps的NRZ传输

Analysis of optical coupling behavior in two-dimensional implant-defined coherently coupled vertical-cavity surface-emitting laser arrays

Optical coupling behavior and associated effects in two-dimensional implant-defined coherently coupled vertical-cavity surface-emitting laser (VCSEL) arrays are studied via both experiments and theoretical calculations. Experiments show that optical coupling between array elements can enhance the array s output power. Additionally, optical coupling via leaky optical fields can provide extra optical gain for the array elements, which can then reduce the thresholds of these elements. Elements can

阻尼对高速850 nm VCSEL性能的影响

阻尼对高速850 nm VCSEL性能的影响

Polarization switching characteristics in a 1550 nm VCSEL subject to circularly polarized optical injection

Polarization switching (PS) characteristics in a 1550 nm vertical-cavity surface-emitting laser (VCSEL) subject to circularly polarized optical injection (CPOI) are experimentally investigated. The results show that, under different biased current, a solitary 1550 nm VCSEL can oscillate at y polarization mode (y mode), two polarization components (PCs) coexistence or x polarization mode (x mode). The PS characteristics induced by CPOI for the VCSEL operating at y mode and x mode are analyzed and

正交光学注入的1550 nm VCSEL中的功率感应偏振转换和双稳态特性

正交光学注入的1550 nm VCSEL中的功率感应偏振转换和双稳态特性

非对称电流注入对矩形台面激光器的偏振分析

为了获得高稳定性的偏振光，研制了氧化孔区域为70 m 10 m 的非对称电流注入的矩形台面垂直腔面发射激光器(ACIR-VCSEL)。在室温下，注入连续直流电流，实验测试得到ACIR-VCSEL 的斜率效率为0.483 W/A，微分串联电阻为23.5 W。在电流注入过程中，ACIR-VCSEL 以稳定的平行于长边的偏振光输出，功率偏振比始终大于5。当电流为15 mA 时，功率偏振比的最大值为14。在相同的测试条件下，氧化孔径大小同为70 m 10 m 的环形电流注入矩形台面VCSEL (RCIR-VCSEL)的斜率效率为0.568 W/A，微分串联电阻为18.1 W，偏振功率比值最大值为9，最小值为2.6。RCIR-VCSEL 与ACIR-VCSEL 的输出特性相比，虽然RCIR-VCSEL 比ACIR-VCSEL 的斜率效率高，串联微分电阻小，但是ACIR-VCSEL 的偏振稳定性和最大偏振比值比RCIR-VCSEL 增强。

Experimental investigation on the time-delay signature of chaotic output from a 1550 nm VCSEL subject to FBG feedback

The time-delay signature (TDS) of chaos output in a 1550 nm vertical-cavity surface-emitting laser (VCSEL) subject to fiber Bragg grating (FBG) feedback is investigated experimentally. Autocorrelation function (ACF) and mutual information (MI) are used for quantitatively identifying the TDS of chaos. For various bias currents, the TDS evolution with the feedback strength is different, as the FBG provides wavelength-selective feedback. Furthermore, based on the TDS map of the FBG feedback VCSEL (

VCSEL fundamentals, technology and application

VCSEL fundamentals, technology and applicationThis chapter attempts to briefly review the research history of verticalcavity surface-emitting lasers (VCSELs). Based on the contents of previous monographs on VCSELs written in English, we motivate the selection of topics in the present book and give an introduction to the individual chapters.

基于可变极化光注入的双1550 nm VCSEL之间偏振分辨混沌同步的长距离双通道双向混沌通信

基于可变极化光注入的双1550 nm VCSEL之间偏振分辨混沌同步的长距离双通道双向混沌通信

Fabrication and Characteristics of GaN-based Blue VCSEL

Fabrication and Characteristics of GaN-based Blue VCSEL