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    • 31. 发明申请
    • NEAR-FIELD LASER AND DETECTOR APPARATUS AND METHOD
    • 近场激光和探测器装置和方法
    • WO0157975A2
    • 2001-08-09
    • PCT/US0102933
    • 2001-01-29
    • SIROS TECHNOLOGIES INC
    • THORNTON ROBERT LHESSELINK LAMBERTUS
    • G01Q60/00G11B7/125H01S5/00H01S5/028H01S5/065H01S5/14H01S5/183
    • B82Y10/00G11B7/127H01S5/0028H01S5/0656H01S5/06808H01S5/0683H01S5/18311H01S5/18394H01S2301/18
    • A near-field laser and detector apparatus and method wherein both writing and reading of optical media can be carried out using the same laser operating in a single mode for both read and write operations. The single operational mode can be utilized with both edge emitting and surface emitting laser configurations, and allows readout via rear facet output power variation or by voltage variation across the laser. A small aperture laser is operated during read and write operations at a bias current which is higher than the threshold currents associated with feedback from high and low reflectivity regions of an optical medium. The bias current and laser structure provide a relatively high, continuous output power from the front emission facet of the laser to facilitate writing, while providing substantial fluctuation or change in output power from the rear emission facet to facilitate readout.
    • 一种近场激光器和检测器装置及方法,其中光学介质的写入和读取都可以使用在单个模式下操作的同一激光器进行读取和写入操作。 单个操作模式可以利用边缘发射和表面发射激光器配置,并且允许通过后面输出功率变化或通过激光器的电压变化读出。 在读取和写入操作期间,小孔径激光器以高于与光学介质的高和低反射率区域的反馈相关联的阈值电流的偏置电流来操作。 偏置电流和激光器结构提供来自激光器的前发射小面的相对高的连续输出功率,以便于写入,同时提供来自后发射面的输出功率的实质波动或变化以便于读出。
    • 34. 发明申请
    • SURFACE EMITTING SEMICONDUCTOR LASER AND MANUFACTURING METHOD THEREFOR
    • 表面发射半导体激光器及其制造方法
    • WO99008351A1
    • 1999-02-18
    • PCT/JP1998/000283
    • 1998-01-22
    • H01S5/042H01S5/183H01S5/42H01S3/18
    • H01S5/423H01S5/0421H01S5/0425H01S5/18311
    • A light source of a semiconductor laser beam scanner which has high resolution at the time of scanning, is suitable for emitting a laser beam from the surface, and has a high degree of freedom of mounting is disclosed. A surface emitting semiconductor laser having at least a first mirror (102), an active layer (103), a current constriction layer (113), a contact layer (106) and a second mirror (111) on a semiconductor substrate (101). The current constriction layer (113) is constitued by a stripe-shaped AlAs layer (105) and an aluminum oxide layer (108) so formed as to surround the AlAs layer (105). The contact layer (106) is formed in the shape of comb tooth (109) in a region where it overlaps the aluminum oxide layer, and mutually independent contact electrodes (110) are formed respectively on the upper surfaces of the comb teeth (109) of the contact layer.
    • 在扫描时具有高分辨率的半导体激光束扫描器的光源适用于从表面发射激光束,并且具有高度的安装自由度。 一种在半导体衬底(101)上至少具有第一反射镜(102),有源层(103),电流收缩层(113),接触层(106)和第二反射镜(111)的表面发射半导体激光器, 。 电流收缩层(113)由条形AlAs层(105)和形成为包围AlAs层(105)的氧化铝层(108)构成。 接触层(106)在与氧化铝层重叠的区域中形成为梳齿(109)的形状,并且在梳齿(109)的上表面上分别形成相互独立的接触电极(110) 的接触层。
    • 35. 发明申请
    • APERTURE COMPRISING AN OXIDIZED REGION AND A SEMICONDUCTOR MATERIAL
    • 包含氧化区域的孔径和半导体材料
    • WO1998008280A1
    • 1998-02-26
    • PCT/US1997014237
    • 1997-08-18
    • PICOLIGHT INCORPORATEDJEWELL, Jack, L.
    • PICOLIGHT INCORPORATED
    • H01S03/133
    • H01S5/18372H01L33/105H01L33/145H01S5/18311H01S5/18341
    • An improved aperture (10) is provided. The aperture (10) comprises: at least a first layer (12); the first layer (12) being oxidized in a laterally oriented first region (14); the first layer (12) being modified within a laterally oriented second region (16), the second region (16) being oxidized less than the first region (14); a second layer (18) deposited in communication with the first layer (12), the second layer (18) being oxidized less than the first layer (12); and a non-planar boundary (22) having top and bottom boundary surfaces and side walls (28) connecting the top and bottom boundary surfaces, the top boundary surface defined as a top surface of the second layer (18) above the laterally oriented first region (14) and the bottom boundary surface defined as a bottom surface of the laterally oriented second region (16), the first and second regions (14, 16) defining the aperture (10).
    • 提供改进的孔(10)。 孔(10)包括:至少第一层(12); 所述第一层(12)在横向取向的第一区域(14)中被氧化; 所述第一层(12)在横向定向的第二区域(16)内被修改,所述第二区域(16)被氧化得小于所述第一区域(14); 沉积与第一层(12)连通的第二层(18),第二层(18)被氧化得小于第一层(12); 和具有顶部和底部边界表面的非平面边界(22)和连接顶部和底部边界表面的侧壁(28),顶部边界表面被限定为第二层(18)的顶部表面上方横向定向的第一 区域(14)和限定为横向定向的第二区域(16)的底表面的底部边界表面,所述第一和第二区域(14,16)限定孔(10)。
    • 39. 发明申请
    • TUNABLE SURFACE EMITTING LASER, MANUFACTURING METHOD THEREOF, AND OPTICAL COHERENCE TOMOGRAPHY APPARATUS INCLUDING TUNABLE SURFACE EMITTING LASER
    • 可表面发射激光器,其制造方法和光学相干测量装置,其中包括表面发射激光
    • WO2015079636A1
    • 2015-06-04
    • PCT/JP2014/005693
    • 2014-11-13
    • CANON KABUSHIKI KAISHA
    • NAKANISHI, Koichiro
    • H01S5/042H01S5/183G01B9/02H01S5/022H01S5/20
    • H01S5/0421G01B9/02004G01B9/02091H01S5/0425H01S5/18311H01S5/18341H01S5/18366H01S5/2063
    • A tunable surface emitting laser includes on a semiconductor substrate (1) a first reflecting mirror (2); an active layer (4) on the first reflecting mirror which may be a DBR; a current confinement layer (6) resulting from partial oxidation of an AlGaAs layer; a conductive layer (7) on the current confinement layer (6) for providing a bias current to the active region; support portions (8) made from electrically insulating material like undoped GaAs; and a conductive film (9) which is provided above the conductive layer via a support portion (8) and which comprises a second reflecting mirror (11) like a HCG. A gap portion (14) is formed between the conductive layer (7) and the conductive film (9). The conductive layer (7) includes a high resistivity region (13) provided between the support portion (8) and the central current guiding region of the current confinement layer (6). Breakdown voltage of the tuning part is increased and rapid wavelength tuning via corresponding currents provided to the electrodes (12) is enabled allowing for faster movement of the second reflector (11).
    • 可调谐表面发射激光器包括在半导体衬底(1)上的第一反射镜(2); 第一反射镜上的有源层(4)可以是DBR; 由AlGaAs层的部分氧化产生的电流限制层(6); 电流限制层(6)上的导电层(7),用于向有源区域提供偏置电流; 由诸如未掺杂的GaAs的电绝缘材料制成的支撑部分(8); 以及导电膜(9),其通过支撑部分(8)设置在导电层上方,并且包括像HCG那样的第二反射镜(11)。 在导电层(7)和导电膜(9)之间形成间隙部分(14)。 导电层(7)包括设置在支撑部分(8)和电流限制层(6)的中心电流引导区域之间的高电阻率区域(13)。 调谐部分的击穿电压增加,并且使得提供给电极(12)的相应电流的快速波长调谐能够允许第二反射器(11)的更快的移动。
    • 40. 发明申请
    • TUNABLE LASER ARRAY SYSTEM
    • 可调激光阵列系统
    • WO2014144998A3
    • 2014-11-13
    • PCT/US2014029632
    • 2014-03-14
    • PRAEVIUM RESEARACH INCTHORLABS INC
    • JAYARAMAN VIJAYSEKHARBURGNER CHRISTOPHERJOHN DEMISPOTSAID BENJAMIN MICHAELCABLE ALEX EZRA
    • A61B6/00G01B9/02H01S3/00
    • H01S5/18366H01S5/18308H01S5/18311H01S5/18341H01S5/18369H01S5/18372H01S5/18377H01S5/2059H01S5/3095
    • A system for swept source optical coherence tomography, the system including a light source emitting multiplexed wavelength-swept radiation over a total wavelength range, the light source including N wavelength-swept vertical cavity lasers (VCL) emitting N tunable VCL outputs having N wavelength trajectories, a combiner for combining the N tunable VCL optical outputs into a common optical path to create the multiplexed wavelength-swept radiation, a splitter for splitting the multiplexed wavelength- swept radiation to a sample and a reference path, an optical detector for detecting an interference signal created by an optical interference between a reflection from the sample and light traversing the reference path, and a signal processing system which uses the interference signal to construct an image of the sample, wherein at least one of the N wavelength trajectories differs from another of the N wavelength trajectories with respect to at least one parameter.
    • 一种用于扫描源光学相干断层扫描的系统,所述系统包括在整个波长范围上发射多路复用波长扫描辐射的光源,所述光源包括N个波长扫描垂直腔激光器(VCL),所述N个波长扫描垂直腔激光器发射N个可调谐VCL输出, 用于将N个可调谐VCL光输出组合成公共光路以产生多路复用波长扫描辐射的组合器,用于将复用波长扫描辐射分成样本和参考路径的分路器,用于检测干扰的光学检测器 由来自样本的反射和穿过参考路径的光之间的光学干涉产生的信号,以及使用干涉信号构建样本的图像的信号处理系统,其中N个波长轨迹中的至少一个不同于 相对于至少一个参数的N个波长轨迹。