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1. 发明专利

JP5291033B2 Optical components 有权
公开(公告)号：JP5291033B2
公开(公告)日：2013-09-18
申请号：JP2010072182
申请日：2010-03-26
申请人：日本電信電話株式会社 , Nttエレクトロニクス株式会社
发明人：芳行土居 , 健都築 , 元速石井 , 文博海老澤 , 博照井
IPC分类号： G02B6/30

2. 发明专利

JP5254296B2 Capillary 有权
公开(公告)号：JP5254296B2
公开(公告)日：2013-08-07
申请号：JP2010214378
申请日：2010-09-24
申请人：日本電信電話株式会社
发明人：貴晴大山 , 健都築 , 芳行土居 , 隆志才田 , 元速石井
IPC分类号： G02B6/30

3. 发明专利

JP5134028B2 Optical components 有权
公开(公告)号：JP5134028B2
公开(公告)日：2013-01-30
申请号：JP2010059330
申请日：2010-03-16
申请人：日本電信電話株式会社
发明人：育生小川 , 芳行土居 , 俊和橋本
IPC分类号： G02B6/32 , G02B6/122

4. 发明专利

JP3920201B2 Sub-carriers and optical module using the same 有权
公开(公告)号：JP3920201B2
公开(公告)日：2007-05-30
申请号：JP2002344441
申请日：2002-11-27
申请人：日本電信電話株式会社
发明人：毅北川 , 芳行土居 , 貴晴大山 , 育生小川 , 雅弘柳澤 , 俊和橋本 , 元速石井 , 真司美野
IPC分类号： G02B6/42 , G02B6/122

5. 发明专利

JP5465999B2 Optical modulator 有权
公开(公告)号：JP5465999B2
公开(公告)日：2014-04-09
申请号：JP2009298848
申请日：2009-12-28
申请人：日本電信電話株式会社
发明人：健都築 , 芳行土居 , 真司美野
IPC分类号： G02F1/035 , G02B6/12

6. 发明专利

JP5368007B2 The light-receiving element array 有权
公开(公告)号：JP5368007B2
公开(公告)日：2013-12-18
申请号：JP2008128748
申请日：2008-05-15
申请人：日本電信電話株式会社
发明人：芳行土居 , 貴晴大山 , 育生小川 , 明正金子
IPC分类号： H01L31/10 , H01L27/146
摘要： PROBLEM TO BE SOLVED: To provide a compact and simple light receiving element array which sufficiently reduces a leakage current between light receiving elements. SOLUTION: The light receiving element array has a light absorbing layer 3 formed on a conductivity type semiconductor substrate 2, and also has a plurality of diffusion regions 5 of the opposite conductivity type from the conductivity type semiconductor substrate 2 formed in a conductivity type semiconductor layer 4 provided right on the light absorbing layer 3. The light absorbing layer 3 has the same conductivity type as the conductivity type semiconductor substrate 2. Further, a back electrode 1 is formed on the conductivity type semiconductor substrate 2 by vapor deposition etc., and an insulating film 6 and a surface electrode 7 are formed on the conductivity type semiconductor layer 4. The light absorbing layer 3 is a conductivity type using an electron as a majority carrier, so a probability of recombination between an electron and a hole is high and holes to be spread and moved laterally in the light absorbing layer 3, greatly decrease with their distances. Holes reaching an adjacent light receiving element decrease, so that a leakage current to the adjacent light receiving element is suppressed. COPYRIGHT: (C)2010,JPO&INPIT

7. 发明专利

JP5363504B2 Optical modulator 有权
公开(公告)号：JP5363504B2
公开(公告)日：2013-12-11
申请号：JP2010541229
申请日：2009-12-02
申请人：日本電信電話株式会社
发明人：芳行土居 , 貴山田 , 陽平坂巻 , 明正金子
IPC分类号： G02F1/01 , G02F1/035
CPC分类号： G02F1/225 , G02F1/2257 , G02F2001/212 , G02F2001/217 , G02F2202/09 , G02F2202/20 , G02F2202/28 , G02F2203/20 , G02F2203/21
摘要： An optical modulator having a high stability is provided. In the optical modulator according to the present invention, a phase modulation by an electro-optic effect is made on an optical substrate of an electro-optic material while the setting of an operating point by a thermal-optic effect is made on a planar lightwave circuit (PLC) substrate of quartz, silicon, or the like. Such configuration can suppress the influence of thermal drift or the like because no heat is applied directly to the optical substrate of the electro-optic material. In addition, breakage and warpage of the substrate due to heat are also mitigated. Further, quartz used for the PLC has a low thermal conductivity, approximately one-fifth of that of the LN substrate (approximately 1 W/(m·K)), and therefore, a desired phase difference can be maintained with a low power consumption, and thus, the operating point becomes stabilized.

8. 发明专利

JP4728625B2 Optical semiconductor device and an optical module using the same 有权
公开(公告)号：JP4728625B2
公开(公告)日：2011-07-20
申请号：JP2004317091
申请日：2004-10-29
申请人：日本電信電話株式会社
发明人：芳行土居 , 育生小川 , 明正金子 , 扇太鈴木
IPC分类号： H01S5/022 , H01L31/02
CPC分类号： H01L2224/48091 , H01L2224/48227 , H01L2924/19107 , H01L2924/30107 , H01L2924/00014 , H01L2924/00

9. 发明专利

JP4156442B2 Planar lightwave circuit component and a manufacturing method thereof 有权
公开(公告)号：JP4156442B2
公开(公告)日：2008-09-24
申请号：JP2003155796
申请日：2003-05-30
申请人：日本電信電話株式会社
发明人：毅北川 , 芳行土居 , 育生小川 , 貴山田 , 雅弘柳澤 , 俊和橋本 , 元速石井 , 真司美野
IPC分类号： G02B6/26 , G02B6/30 , G02B6/42

10. 发明专利

JP5324371B2 Optical connecting parts and an optical connection method 有权
公开(公告)号：JP5324371B2
公开(公告)日：2013-10-23
申请号：JP2009220601
申请日：2009-09-25
申请人：日本電信電話株式会社
发明人：芳行土居 , 隆司郷 , 健都築 , 裕史山崎 , 真司美野
IPC分类号： G02B6/26 , G02B6/30 , G02B6/32
摘要： PROBLEM TO BE SOLVED: To provide an optical connecting component in which stress given to optical fibers is relaxed, insertion loss, break of the optical fibers and polarized wave extinction ratio are improved and an array composing is easy. SOLUTION: The optical connecting component separates an inner space from outside with a housing (10), a lid (12) and a transmission window (600) provided on the housing. The transmission window is composed so that the optical fiber (200) or a planar light wave circuit (300) may be connected to the inner space side, a second optical fiber (202) or a second planar light wave circuit may be connected to the out part side, the light which propagates in the optical fiber or the planar light wave circuit may be connected to the second optical fiber or the second planar light wave circuit via the transmission window, or the light which propagates in the second optical fiber or the second planar light wave circuit may be connected to the optical fiber or the planar light wave circuit via the transmission window. The thickness of the transmission window is such that the coupling loss of light is within 0.5 dB, and the thermal expansion/contraction coefficient of the transmission window is smaller than the thermal expansion/contraction rate of the housing. COPYRIGHT: (C)2011,JPO&INPIT

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