Semiconductor laser module with lens holder compensating for thermal
stress
    91.
    发明授权
    Semiconductor laser module with lens holder compensating for thermal stress 失效
    具有透镜架的半导体激光模块,用于补偿热应力

    公开(公告)号:US5315609A

    公开(公告)日:1994-05-24

    申请号:US968668

    申请日:1992-10-30

    IPC分类号: G02B6/42 H01S3/18 G02B6/26

    CPC分类号: G02B6/4248 G02B6/4204

    摘要: A semiconductor laser module is provided by silver soldering the holder part of Kovar to the package of Kovar, and then silver soldering the lens holder part of pure iron or a stainless steel to the holder part. The lens holder part has the convergent rod lens fixedly soldered thereto by an Au/Sn solder of a high melting point of 280.degree. C. The semiconductor laser is fixedly soldered onto a stem, with the stem, the optical fiber and ferrule holder being fixedly soldered at positions so that the light emitted from the semiconductor laser is converged by the convergent rod lens at the light incidence end of the optical fiber and the laser light is coupled to the optical fiber. Thus, the convergent rod lens can be fixed with high-melting-point joining means, and a semiconductor laser module for optical communications in which the deterioration of light connection repeatedly generated by heat stress is suppressed can be obtained.

    摘要翻译: 通过将Kovar的保持器部分银焊接到Kovar的包装上提供半导体激光器模块,然后将纯铁或不锈钢的透镜保持器部分银焊接到保持器部分。 透镜保持器部分具有通过280℃的高熔点的Au / Sn焊料固定地焊接在其上的会聚棒透镜。半导体激光器固定地焊接到杆上,杆,光纤和套圈保持器固定 焊接在位置,使得从半导体激光器发射的光由会聚棒状透镜会聚在光纤的入射端,激光与光纤耦合。 因此,会聚杆透镜可以用高熔点接合装置固定,并且可以获得其中抑制由热应力反复产生的光连接的劣化的用于光通信的半导体激光器模块。

    Semiconductor laser module with built-in optical isolator
    92.
    发明授权
    Semiconductor laser module with built-in optical isolator 失效
    具有内置光学隔离器的半导体激光模块

    公开(公告)号:US5128956A

    公开(公告)日:1992-07-07

    申请号:US683615

    申请日:1991-04-11

    IPC分类号: G02B6/42 H01S5/00

    摘要: In a semiconductor laser module with a built-in optical isolator which isolator consists of a polarizer, a Faraday rotator and an analyzer, an optical refraction sheet having a wedge-shaped section is disposed on the beam incidence side of the polarizer. Accordingly, even when the mechanical center axis of the optical isolator is placed to be in parallel with the optical axis of the semiconductor laser or in other words, even when the beam incidence-outgoing surfaces of the polarizer, Faraday rotator and analyzer are placed to be vertical to the incident parallel beams, the parallel beams incident into the optical isolator are refracted by the optical refraction sheet having the wedge-shaped section, so that the parallel beams passing through the beam incidience-outgoing surfaces of the polarizer, Faraday rotator and analyzer do not pass vertically and the return of reflected beams to the semiconductor laser can be thus reduced.

    摘要翻译: 在具有内置光隔离器的半导体激光器模块中,隔离器由偏振器,法拉第旋转器和分析器组成,具有楔形截面的光学折射片设置在偏振器的光束入射侧。 因此,即使将光隔离器的机械中心轴设置为与半导体激光器的光轴平行,换句话说,即使当将偏振器,法拉第旋转器和分析器的光束入射表面放置到 垂直于入射的平行光束,入射到光隔离器中的平行光束被具有楔形截面的光学折射片折射,使得平行光束通过偏振器的光束出射表面,法拉第旋转器和 分析仪不会垂直通过,因此可以减少反射光束到半导体激光器的返回。

    Switch for optical transmission lines
    95.
    发明授权
    Switch for optical transmission lines 失效
    光传输线路切换

    公开(公告)号:US4337995A

    公开(公告)日:1982-07-06

    申请号:US92513

    申请日:1979-11-08

    IPC分类号: G02B26/08 G02B6/35 G02B7/26

    摘要: Disclosed is an optical switch for changing over the mode connecting two optical transmission lines comprising two optical fibers directly to each other and the mode connecting an optical communication device between the two transmission lines. In this optical switch, in order to reduce the insertion loss, first, second, third and fourth optical fibers, each having an optical connector attached to one end, are attached to a substrate so that at least parts of the respective optical fibers are fixed to the substrate, and the ends of the first and second fibers are arranged on the substrate movably so that the end face of the first optical fiber confronts the end faces of the second and third optical fibers and the end face of the second optical fiber confronts the end faces of the first and fourth optical fibers.

    摘要翻译: 公开了一种光开关,用于将连接包括两根光纤的两根光纤的两条光纤线路连接在一起的模式,以及连接两条传输线路之间的光通信设备的模式。 在该光开关中,为了减少插入损耗,将具有安装在一端的光连接器的第一,第二,第三和第四光纤连接到基板,使得各个光纤的至少一部分固定 并且第一和第二光纤的端部可移动地布置在基板上,使得第一光纤的端面面对第二和第三光纤的端面,并且第二光纤的端面面对 第一和第四光纤的端面。

    Device management system, device management method, and recording medium

    公开(公告)号:US10432801B2

    公开(公告)日:2019-10-01

    申请号:US16113273

    申请日:2018-08-27

    申请人: Satoshi Aoki

    发明人: Satoshi Aoki

    IPC分类号: H04N1/00

    摘要: A device management system and a device management method are provided, each of which: receives status information indicating a status of a relay device from the relay device, the relay device being connected with one or more devices in a local network via a firewall; based on a determination that the received status information satisfies a predetermined condition, obtains instruction information associated with the predetermined condition, the instruction information indicating a predetermined process to be executed by the relay device; and transmits the obtained instruction information to the relay device to cause the relay device to execute the predetermined process.

    Device, method and program for preventing information leakage
    100.
    发明授权
    Device, method and program for preventing information leakage 有权
    用于防止信息泄露的设备,方法和程序

    公开(公告)号:US09251367B2

    公开(公告)日:2016-02-02

    申请号:US14007175

    申请日:2012-03-16

    摘要: Provided is a device for preventing information leakage including: a storage unit that stores message time, request source information, and request destination information in relation to each information requesting message; a unit that suspends a response message containing personal information in response messages in response to the information requesting messages, for a predetermined suspended time from a message time of the corresponding information requesting message; a unit that counts the number of information requesting messages transmitted from the same request source to the same destination and corresponding to the suspended response message on the basis of information stored in the storage unit; and a unit that, in the case where the counted number of the information requesting messages exceeds a predetermined threshold value, applies a protection process to the suspended response message so that the personal information contained in the suspended response message is not received by the request source.

    摘要翻译: 提供了一种用于防止信息泄露的装置,包括:存储单元,其存储关于每个信息请求消息的消息时间,请求源信息和请求目的地信息; 响应于所述信息请求消息而在响应消息中包含个人信息的响应消息的单元,从相应信息请求消息的消息时间起预定的暂停时间; 基于存储在存储单元中的信息,计数从相同请求源发送到相同目的地并对应于暂停的响应消息的信息请求数量的单元; 以及在所述信息请求消息的所计数的数量超过预定阈值的情况下,对所述暂停的响应消息应用保护处理,使得所述暂停的响应消息中包含的个人信息未被所述请求源接收的单元 。