Institutional Repository of Xi'an Institute of Optics and Precision Mechanics, CAS
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Light emitting device package
No full textA light emitting device package (100) includes a frame (110), a first lead frame (120) spaced apart from the frame by a specific distance, a second lead frame (130) spaced apart from the frame by the specific distance, a body (170) coupled to the frame and the first and second lead frames and having a first cavity (171a), and a plurality of light emitting devices (150) on the frame exposed through the first cavity. The body includes a reflective part (190) which is provided inside the first cavity to surround at least one of the light emitting devices, thereby improving light extraction efficiency. The deformation of the light emitting device package resulting from the contraction and the expansion of the light emitting device package is prevented by the reflective part. The deformation of a molding part resulting from the contraction and expansion of the molding part is prevented by the reflective part
Optical microresonator device with thermal isolation
No full textA thermal microring optical sensor is configured such that a portion of the optical resonator and its associated waveguide are encased within a cladding structure to minimize scattering losses along the waveguide and also provide improved evanescent coupling efficiency between the waveguide and the resonator. Functioning as a thermal sensor, incoming radiation modifies the temperature of the resonator, which changes its resonant frequency and, as a result, the percentage of light that it evanescently couples from the waveguide. The cladding structure also functions as a mechanical support for the resonator disk, eliminating the need for a pedestal to suspend the disk above the support substrate. Thermally-induced buckling of the optical waveguide is also reduced by encasing the susceptible portion of the waveguiding within the cladding structure
一种单点式跟踪定位编码标志装置
No full text一种单点式跟踪定位编码标志装置，包括带编码标志点的被跟踪物体和相机，其特征在于它包括上位机、激光二极管、控制端单元和接收端单元；其优越性：发光标志点依次闪烁，与相机快门同步触发，保证每次快门触发只有一个标志点发光，由此根据发光次序及可得到编码点的编号；装置结构简单易实现
Fiber combiner with input port dump
No full textAn apparatus includes a plurality of input fibers including one or more signal fibers and one or more beam dump fibers, a signal combiner having an input end coupled to the plurality of input fibers so as to couple portions of one or more signal beams respectively propagating in one or more of the signal fibers to form a combiner beam, an output fiber coupled to an output end of the signal combiner so as to receive the combiner beam, and a beam dump coupled to at least one of the one or more beam dump fibers so as to receive a light beam propagating from the output fiber that is associated with the combiner beam
一种半导体激光器管帽焊接用装帽装置
No full text一种半导体激光器管帽焊接用装帽装置，包括料盘、N个模条、模条定位机构Ⅰ、模条定位机构Ⅰ以及焊接夹具。实现了一次快速将多个管帽按焊接夹具的排布固定于焊接夹具的下电极的内孔中。解决了装管帽速度慢的弊端，使管帽在焊接夹具上排列整齐，与焊接机半导体激光器管帽焊接夹具配合保证了焊接机的持续工作，大大提高了工作速度，提高了生产效率。同时整个过程中不需用手对管帽进行摆放，避免了手工操作对管帽的污染，减少了装管座操作工人的数量，节省了人力。整个装帽装置结构简单，体积小巧，制作成本低廉
手环式半导体激光治疗仪
No full text本实用新型公开了一种手环式半导体激光治疗仪，包括手环本体、半导体激光器和手动控制开关，所述手环本体内设置有半导体激光器，所述半导体激光器上设置有聚光器，所述聚光器的前端设置有光纤装置，所述手环本体的右侧设置有手动控制开关，所述半导体激光器的内侧设置有防护罩，所述手环本体的内侧感应环，所述感应环的上方设置有振动感应器，所述感应环的下方设置有两个皮护电感应器，所述手环本体内设置有电源。本实用新型所提供的手环式半导体激光治疗仪，不但体积小，携带及使用极为方便，同时功能强大，满足用户更人性化的要求，而且具有远程控制功能，防止操作人员误操作
一种用于样品热值分析的氧弹、量热仪
No full text本实用新型公开了一种用于样品热值分析的氧弹，包括氧弹本体，氧弹本体内可放置坩埚，所述坩埚的上方设有挡火板，所述挡火板开设有朝向坩埚的透光通孔，所述挡火板上于透光通孔处设有激光固定架，所述激光固定架内从上至下依次设有可拆卸地激光二极管、聚焦镜片和透明挡火片、以用于将激光二极管发出的光聚焦照射在坩埚内进行激光点火。本实用新型还公开了一种量热仪。本实用新型具有结构简单紧凑、操作方便快捷、密封性好、安全性高、实验精度高的优点
一种激光物证勘查仪
No full text本实用新型涉及一种激光物证勘查仪，包括基板、激光器阵列、准直器以及透镜，所述激光器阵列包括若干激光器，所述激光器均为半导体激光器，所述激光器阵列中的半导体激光器可以按照m×n二维阵列方式设置在所述基板上，或按照正三角形排列设置在所述基板上，或按照等腰三角形排列设置在所述基板上，半导体激光器产生的激光经所述准直器准直之后，从所述透镜射出；本激光物证勘查仪采用半导体激光器阵列作为激光光源，能够获得较窄的光谱线宽，并具有较高的电光转换效率不仅可使得杂光干扰小、物证勘察荧光效应明显，而且结构紧凑、体积小巧，在实际使用过程中勘察能力出众且便携性强
带调制的激光二极管恒流驱动系统
No full text本实用新型涉及激光二极管技术领域，具体而言，涉及一种带调制的激光二极管恒流驱动系统。该带调制的激光二极管恒流驱动系统包括恒流控制单元、电压电流转换单元、电流电压转换单元和采样放大反馈单元。该带调制的激光二极管恒流驱动系统，对激光二极管电流进行采样时，由于增加了采样放大反馈单元，所以采样电阻可以选小阻值的高精度电阻；另外由于激光二极管的额定电流是一定的，与激光二极管串联的采样电阻阻值减小后，其消耗的功率也相应减小，不会产生多余的热耗散，所以也就没必要选大功率、低温漂的采样电阻了，小功率的器件可以减少占用PCB的面积，同时又能降低器件和PCB的成本
一种单纵模宽带可调谐布里渊激光器
No full text本实用新型公开了一种单纵模宽带可调谐布里渊激光器。包括光学无源谐振腔、掺杂光纤放大器、偏振控制器以及可调谐光源，所述掺杂光纤放大器包括两段并行设置的采用分带结构的铒镨共掺光纤和掺铥光纤、并分别用不同波长的半导体激光器泵浦，一对波带复用器和解复用器，一个增益平坦滤波器，其增益平坦滤波器位于放大器的输出端，所述掺杂光纤放大器输入输出端分别设置隔离器。该单纵模宽带可调谐布里渊激光器结构简单，成本低廉，输出激光稳定