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    • 1. 发明授权
    • Optical transmitting /receiving module
    • 光发射/接收模块
    • US07486846B2
    • 2009-02-03
    • US10589605
    • 2005-02-15
    • Yoshihisa WarashinaYasuji HoshinoHajime TakeyamaMasaaki Muto
    • Yoshihisa WarashinaYasuji HoshinoHajime TakeyamaMasaaki Muto
    • G02B6/26
    • G02B6/4246
    • An optical transmitting and receiving module, with which there is no need to provide a submount for disposing a photodiode on a substrate and with which spatial restrictions can be made small, is provided. An optical transmitting and receiving module 1 has a light transmitting substrate 10. A filter groove 13 is formed on a top surface of light transmitting substrate 10, and a dielectric multilayer film filter 23 is set in filter groove 13. An optical fiber 21 and a laser diode 25 are disposed at opposite positions across dielectric multilayer film filter 23. Also, a photodiode 26 is disposed on a rear surface side of light transmitting substrate 10. Photodiode 26 is positioned directly below a line connecting optical fiber 21 and laser diode 25.
    • 一种光发送和接收模块,其不需要提供用于在基板上设置光电二极管的基座,并且可以使空间限制较小。 光收发模块1具有透光基板10.在透光基板10的顶面形成有过滤槽13,在滤波槽13内设置电介质多层膜滤波器23.光纤21和 激光二极管25设置在跨越电介质多层膜滤光器23的相对位置。另外,在透光基板10的背面侧设置光电二极管26.光电二极管26位于连接光纤21和激光二极管25的直线下方。
    • 5. 发明授权
    • Optical module
    • 光模块
    • US06880985B2
    • 2005-04-19
    • US10459702
    • 2003-06-12
    • Yasuji HoshinoYoshihisa WarashinaShogo IyamaHajime Takeyama
    • Yasuji HoshinoYoshihisa WarashinaShogo IyamaHajime Takeyama
    • G02B6/42H01L31/0232H01L33/58G02B6/36
    • G02B6/4204G02B6/4292
    • In optical module 10, light emitted from laser diode (hereinafter referred to as “LD”) 42 is collimated into parallel light beam by ball lens 44 and then travels through ball lens 26 to be focused on core 104 of optical fiber 100. Since the light passing between ball lenses 44 and 26 is the parallel light beam as described above, allowance is enlarged for axial misalignment between the optical axes of ball lens 44 and ball lens 26. This enables the light from LD 42 to be focused on core 102 of optical fiber 100 even if there occurs axial misalignment between the optical axes of optical fiber 100 and LD 42 due to a factor resulting from fitting of ferrule 102 into sleeve 14 or the like. Accordingly, there is no need for alignment in a work of mounting optoelectronic device 28, i.e., LD 42 in housing 12.
    • 在光学模块10中,由激光二极管(以下称为“LD”)42发射的光被球透镜44准直成平行光束,然后穿过球透镜26聚焦在光纤100的核心104上。由于 在球透镜44和26之间通过的光是如上所述的平行光束,球面透镜44和球透镜26的光轴之间的轴向偏移的容限被扩大了。这使得来自LD 42的光能够聚焦在 即使光纤100和LD42的光轴之间出现轴向未对准,由于将套圈102装配到套筒14等中的因素,光纤100也是如此。 因此,在安装光电子器件28(即,壳体12中的LD 42)的工作中不需要对准。