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公开(公告)号:US06854897B2
公开(公告)日:2005-02-15
申请号:US10390187
申请日:2003-03-18
申请人: Masaki Furumai , Shuzo Suzuki , Hitoshi Terauchi , Manabu Yoshimura , Kazuhito Saito , Manabu Shiozaki , Kazunori Yoshida
发明人: Masaki Furumai , Shuzo Suzuki , Hitoshi Terauchi , Manabu Yoshimura , Kazuhito Saito , Manabu Shiozaki , Kazunori Yoshida
CPC分类号: G02B6/4246 , G02B6/3845 , G02B6/4292 , H01L2224/48091 , H01L2924/00014
摘要: The ferrule part 16 comprises ferrule 60, first and second optical fibers 62 and 64, and optical filter 68. Ferrule 60 has first and second end surface 60a and 60b, ferrule insertion hole 60c, and groove 68. Ferrule insertion hole 60c extends along a first axis, and accommodates first and second optical fibers 62 and 64. Groove 66 extends along a second axis crossing the first axis, and extends so as to extend across ferrule 60. Groove 66 is provided along a plane defined by the second axis and a third axis perpendicular to the first and second axes. Optical filter 68 can reflect a part of light incident on one surface 68b of the pair of surfaces of optical filter 68, and can transmit a part of the light incident on other surface 68a.
摘要翻译: 套圈部分16包括套圈60,第一和第二光纤62和64以及滤光器68.套圈60具有第一和第二端面60a和60b,套圈插入孔60c和凹槽68.套圈插入孔60c沿着 第一轴线,并且容纳第一和第二光纤62和64.槽66沿着与第一轴线交叉的第二轴线延伸,并且延伸以跨越套圈60延伸。槽66沿着由第二轴线限定的平面设置, 第三轴垂直于第一和第二轴。 滤光器68可以反射入射在滤光器68的一对表面的一个表面68b上的光的一部分,并且可以透射入射在另一表面68a上的一部分光。
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公开(公告)号:US06340831B1
公开(公告)日:2002-01-22
申请号:US09525222
申请日:2000-03-14
IPC分类号: H01L31042
CPC分类号: H01L31/02162 , H01L31/1035 , H01L2224/45144 , H01L2224/48091 , H01L2224/48137 , H01L2924/3025 , H01L2924/00014 , H01L2924/00
摘要: A photodiode which senses only &lgr;2 without WDM in optical communication systems containing two signals of different wavelengths &lgr;1 and &lgr;2. The photodiode has a filter layer whose band gap wavelength &lgr;g satisfies an inequality of &lgr;1
摘要翻译: 光电二极管只在不含WDM的光通信系统中感测到lambd2,其中包含两个不同波长信号lambd1和lambd2的光通信系统。 光电二极管具有滤波器层,其带隙波长lambdg满足lambd1
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公开(公告)号:US06437415B1
公开(公告)日:2002-08-20
申请号:US09321541
申请日:1999-05-28
申请人: Yoshiki Kuhara , Hitoshi Terauchi
发明人: Yoshiki Kuhara , Hitoshi Terauchi
IPC分类号: H01L3100
CPC分类号: H01L31/1035 , H01L31/0352
摘要: Besides the central pn-junction and the central electrode, a PD chip has a peripheral pn-junction and a peripheral electrode which do not appear on the sides. The ends of the peripheral pn-junction are covered with a protection layer for preventing self-shortcircuit. A reverse bias is applied to the peripheral electrode for making a wide depletion layer beneath the peripheral pn-junction. Extra carriers generated by peripherally-incidence rays are fully absorbed by the peripheral depletion layer and annihilated by the reverse bias.
摘要翻译: 除了中心pn结和中心电极之外,PD芯片还具有周边pn结和不存在于侧面的外围电极。 外围pn结的末端覆盖有用于防止自身短路的保护层。 对周边电极施加反向偏压,以在外围pn结下方形成较宽的耗尽层。 由外围入射光产生的额外载体被外围消耗层完全吸收,并被反向偏置消除。
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公开(公告)号:US06724063B2
公开(公告)日:2004-04-20
申请号:US10143956
申请日:2002-05-14
申请人: Yoshiki Kuhara , Hitoshi Terauchi
发明人: Yoshiki Kuhara , Hitoshi Terauchi
IPC分类号: H01L3100
CPC分类号: H01L31/1035 , H01L31/0352
摘要: Besides the central pn-junction and the central electrode, a PD chip has a peripheral pn-junction and a peripheral electrode which do not appear on the sides. The ends of the peripheral pn-junction are covered with a protection layer for preventing self-shortcircuit. A reverse bias is applied to the peripheral electrode for making a wide depletion layer beneath the peripheral pn-junction. Extra carriers generated by peripherally-incidence rays are fully absorbed by the peripheral depletion layer and annihilated by the reverse bias.
摘要翻译: 除了中心pn结和中心电极之外,PD芯片还具有周边pn结和不存在于侧面的外围电极。 外围pn结的末端覆盖有用于防止自身短路的保护层。 对周边电极施加反向偏压,以在外围pn结下方形成较宽的耗尽层。 由外围入射光产生的额外载体被外围消耗层完全吸收,并被反向偏置消除。
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公开(公告)号:US06218684B1
公开(公告)日:2001-04-17
申请号:US09206156
申请日:1998-12-07
IPC分类号: H01L31072
CPC分类号: H01L31/109
摘要: A half-transmittance photodiode usable as a photodetector in receivers for “ping-pong transmission” is improved in temperature characteristic, so that a half-transmittance photodiode usable at low temperatures is available. A p-n junction is formed in a buffer layer, not in an absorption layer.
摘要翻译: 可用作“乒乓球传送”接收机中的光电检测器的半透射光电二极管的温度特性得到改善,使得可以在低温下使用半透射光电二极管。 p-n结形成在缓冲层中,而不是在吸收层中。
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公开(公告)号:US06043550A
公开(公告)日:2000-03-28
申请号:US146101
申请日:1998-09-03
IPC分类号: H01L27/142 , H01L27/148 , H01L29/768 , H01L31/042 , H01L31/06
CPC分类号: H01L31/02162 , H01L31/1035 , H01L2224/45144 , H01L2224/48091 , H01L2224/48137 , H01L2924/3025
摘要: A photodiode which senses only .lambda.2 without WDM in optical communication systems containing two signals of different wavelengths .lambda.1 and .lambda.2. The photodiode has a filter layer whose band gap wavelength .lambda.g satisfies an inequality of .lambda.1
摘要翻译: 在包含不同波长λ1和λ2的两个信号的光通信系统中仅感测λ2的光电二极管。光电二极管具有滤波器层,其带隙波长λg满足λ1 <λg <λ2的不等式,用于 消除λ1。对于信号的消失尾,外围pn结形成在中心pn结周围。 在这种情况下,n电极被安装在外围p区和周边n区两者上。
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