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1. 发明授权

US5659558A Short-wavelength laser element doped with rare earth ions, optical amplifier doped with rare earth ions, and wavelength converter doped with rare earth ions 失效
标题翻译：掺杂有稀土离子的短波长激光元件，掺杂有稀土离子的光放大器和掺杂稀土离子的波长转换器
公开(公告)号：US5659558A
公开(公告)日：1997-08-19
申请号：US610884
申请日：1996-03-05
申请人： Genji Tohmon , Jun Ohya , Tomoaki Uno
发明人： Genji Tohmon , Jun Ohya , Tomoaki Uno
IPC分类号： H01S3/067 , H01S3/094 , H01S3/16 , H01S3/30
CPC分类号： H01S3/067 , H01S3/094096 , H01S3/1616 , H01S3/1645
摘要： A first pumping beam at a wavelength of 1210 nm emitted from a first pumping source is focused by a first lens system on an optical fiber. A second pumping beam at a wavelength of 650 nm emitted from a second pumping source passes through a coupler and a second lens system and arrives at the optical fiber to be incident thereon. Tm ions with which a core portion of the optical fiber is doped sequentially experience a ground-state level absorption transition upon absorption of the first pumping beam, an excited-state level absorption transition to an upper laser level upon absorption of the second pumping beam, and a radiative transition from the upper laser level to a ground-state level, thereby emitting light at a wavelength of 460 to 500 nm. The light at a wavelength of 460 to 500 nm emitted from the Tm ions is resonated by a resonator consisting of an incident mirror and an emitting mirror and outputted as a laser beam.
摘要翻译：从第一泵浦源发射的波长为1210nm的第一泵浦光束由第一透镜系统聚焦在光纤上。从第二泵浦源发射的波长为650nm的第二泵浦光束穿过耦合器和第二透镜系统并到达光纤入射到其上。掺杂光纤的纤芯部分的Tm离子顺序地经受吸收第一泵浦光束时的基态状态电平吸收转变，吸收第二泵浦光束时的激发态电平吸收跃迁到上激光水平，以及从上激光电平到基态电平的辐射转变，从而发射波长为460〜500nm的光。从Tm离子发射的波长为460〜500nm的光由入射镜和发射镜构成的谐振器谐振，作为激光束输出。

2. 发明授权

US5426656A Laser element doped with rare earth ions, optical amplifier element doped with rare earth ions and rare-earth-ion-doped short-wavelength laser light source apparatus 失效
标题翻译：掺杂稀土离子的激光元件，掺杂稀土离子的光放大元件和稀土离子掺杂短波长激光光源装置
公开(公告)号：US5426656A
公开(公告)日：1995-06-20
申请号：US184932
申请日：1994-01-24
申请人： Genji Tohmon , Jun Ohya , Hisanao Sato , Tomoaki Uno
发明人： Genji Tohmon , Jun Ohya , Hisanao Sato , Tomoaki Uno
IPC分类号： H01S3/067 , H01S3/094 , H01S3/16 , H01S3/14
CPC分类号： H01S3/16 , H01S2302/00 , H01S3/067 , H01S3/094092 , H01S3/1611
摘要： The optical fiber is doped at the core thereof with Tm ions and Nd ions. When light at a wavelength in a 800-nm band for exciting the Nd ions, is incident upon the optical fiber through an incident portion thereof, the Nd ions emit light at a wavelength in the vicinity of 1,012 .mu.m. Through three excitations by absorption of light emitted from the Nd ions and/or energy transfer from the Nd ions, the Tm ions experience three excitation transitions and reach a third high energy level through first and second high energy levels. Thereafter, the Tm ions experience a radiative transition from the third high energy level, thereby to emit blue light at a wavelength of 480 nm.
摘要翻译：光纤在其核心掺杂有Tm离子和Nd离子。当用于激发Nd离子的800nm波长的波长的光通过其入射部分入射到光纤上时，Nd离子发射波长在1012μm附近的光。通过吸收从Nd离子发射的光和/或来自Nd离子的能量转移的三次激发，Tm离子经历三次激发跃迁，并通过第一和第二高能级达到第三高能级。此后，Tm离子经历从第三高能量水平的辐射跃迁，由此发射波长为480nm的蓝色光。

3. 发明授权

US06406196B1 Optical device and method for producing the same 失效
标题翻译：光学装置及其制造方法
公开(公告)号：US06406196B1
公开(公告)日：2002-06-18
申请号：US08809976
申请日：1997-07-24
申请人： Tomoaki Uno , Jun Ohya , Genji Tohmon , Masahiro Mitsuda
发明人： Tomoaki Uno , Jun Ohya , Genji Tohmon , Masahiro Mitsuda
IPC分类号： G02B636
CPC分类号： G02B6/12007 , G02B6/421 , G02B6/4214 , G02B6/4246 , G02B2006/12109 , H01L2224/16225 , H01L2224/32225 , H01L2224/73204 , H01L2924/00014 , H01L2924/00 , H01L2224/0401
摘要： The optical device of the present invention includes a substrate, at least one first groove formed on the substrate, an optical fiber placed in the first groove, and at least one second groove diagonally formed across the optical fiber. Furthermore, the optical device includes an optical member inserted in the second groove, having a surface which reflects or diffracts at least a part of light propagating through the optical fiber. A photodetector is placed at a position where light which is reflected or diffracted by the optical member is received. As a result, an miniaturized optical device having a low loss and high reliability can be provided at low cost.
摘要翻译：本发明的光学装置包括基板，形成在基板上的至少一个第一凹槽，放置在第一凹槽中的光纤以及横跨光纤对角地形成的至少一个第二凹槽。此外，光学装置包括插入第二凹槽中的光学构件，具有反射或衍射穿过光纤的光的至少一部分的表面。光电检测器被放置在被光学部件反射或衍射的光的位置。结果，可以以低成本提供具有低损耗和高可靠性的小型化光学器件。

4. 发明授权

US5341237A Rare earth ion doped optical element 失效
标题翻译：稀土离子掺杂光学元件
公开(公告)号：US5341237A
公开(公告)日：1994-08-23
申请号：US830311
申请日：1992-01-31
申请人： Genji Tohmon , Hisanao Sato , Toshihiro Fujita , Jun Ohya
发明人： Genji Tohmon , Hisanao Sato , Toshihiro Fujita , Jun Ohya
IPC分类号： H01S3/07 , H01S3/06 , H01S3/067 , H01S3/083 , H01S3/16 , H01S3/17 , H01S3/14
CPC分类号： H01S3/17 , H01S3/06716 , H01S3/1608 , H01S3/1611 , H01S3/1613 , H01S3/1616 , H01S3/1698
摘要： The effective rate of deactivation from the terminal state to the ground state of a rare earth ion doped optical material in a four-level amplifying or lasing scheme may be increased greatly by doping the optical material with two rare earth ions, an activator and a deactivator. Energy transfer occurs between the terminal state in the activator ion and the deactivator ion. The transition from the deactivator to the ground state occurs via phonon emission. By increasing the deactivation rate, the efficiency of the laser and the amplifier is increased.
摘要翻译：通过掺杂具有两种稀土离子的光学材料，激活剂和失活剂，可以大大增加在四级放大或激光方案中从稀土离子掺杂光学材料的终端状态到基态的失活的有效速率。能量转移发生在活化剂离子的末端状态和钝化剂离子之间。从失活剂到基态的过渡通过声子发射发生。通过增加去激活率，增加了激光器和放大器的效率。

5. 发明授权

US5321708A Optical fiber amplifier doped with dysprosium ion for the 1.3 .mu.m wavelength band 失效
标题翻译：光纤放大器掺杂镝离子为1.3μm波段
公开(公告)号：US5321708A
公开(公告)日：1994-06-14
申请号：US39772
申请日：1993-03-26
申请人： Genji Tohmon , Hisanao Sato , Jun Ohya , Toshihiro Fujita
发明人： Genji Tohmon , Hisanao Sato , Jun Ohya , Toshihiro Fujita
IPC分类号： C03C4/00 , G02B6/00 , G02F1/35 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/08 , H01S3/094 , H01S3/0941 , H01S3/16 , H01S3/17 , H01S3/14
CPC分类号： H01S3/06716 , H01S3/17 , H01S2302/00 , H01S3/06754 , H01S3/06791 , H01S3/094065 , H01S3/0941 , H01S3/1606 , H01S3/173 , H01S3/176
摘要： A core of a fluorozirconate optical fiber is doped with rare earth ions, namely trivalent Dy ions. The Dy ion makes an absorption transition with excitation light generated by an 800 nm semiconductor laser module. Then the Dy ion undergoes transitions, namely a nonradiative transition involving phonon emission, a transition to a metastable excited level, and a radiative transition wherein radiation corresponding to the 1.28 .mu.m to 1.35 .mu.m range occurs, thereafter returning to its ground state level. The Dy ion having an electrovalence of three can be pumped with a high-output 800 nm semiconductor laser module and is not subject to saturation at a lower energy level of population inversion. Using an optical fiber of the invention, a higher gain is obtained in the region of 1.3 .mu.m telecommunications window.
摘要翻译：氟锆酸盐光纤的核掺杂有稀土离子，即三价Dy离子。 Dy离子通过800nm半导体激光器模块产生的激发光进行吸收转变。然后，Dy离子经历转变，即涉及声子发射的非辐射跃迁，到亚稳激发电平的转变，以及辐射跃迁，其中发生对应于1.28μm至1.35μm范围的辐射，然后返回到其基态。具有三次电流的Dy离子可以用高输出800nm半导体激光器模块泵送，并且在较低的总体反转能量水平下不会饱和。使用本发明的光纤，在电信窗口的1.3μm区域获得较高的增益。

6. 发明授权

US5914808A Intermediate isolator type fiber amplifier and fiber transmission system 失效
标题翻译：中间隔离器型光纤放大器和光纤传输系统
公开(公告)号：US5914808A
公开(公告)日：1999-06-22
申请号：US701987
申请日：1996-08-23
申请人： Masahiro Mitsuda , Jun Ohya , Tomoaki Uno
发明人： Masahiro Mitsuda , Jun Ohya , Tomoaki Uno
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/00
CPC分类号： H01S3/06758
摘要： The fiber amplifier of this invention includes: a first rare earth element doped fiber; a second rare earth element doped fiber; and a pump light source for generating pump light for exciting the first rare earth element doped fiber and the second rare earth element doped fiber, the fiber amplifier receiving analog signal light and amplifying the analog signal light, wherein the fiber amplifier further includes a directional transmitter disposed between the first rare earth element doped fiber and the second rare earth element doped fiber, and a transmittance of the directional transmitter for at least light having the same wavelength as the signal light propagating from the first rare earth element doped fiber to the second rare earth element doped fiber is larger than a transmittance of the directional transmitter for the light propagating from the second rare earth element doped fiber to the first rare earth element doped fiber.
摘要翻译：本发明的光纤放大器包括：第一稀土元素掺杂光纤; 第二稀土元素掺杂光纤; 以及泵浦光源，用于产生用于激发第一稀土元素掺杂光纤和第二稀土元素掺杂光纤的泵浦光，所述光纤放大器接收模拟信号光并放大模拟信号光，其中光纤放大器还包括定向发射器设置在第一稀土元素掺杂光纤和第二稀土元素掺杂光纤之间，并且定向发射器的透射率至少为与从第一稀土元素掺杂光纤传播到第二稀土元素掺杂光纤的信号光具有相同波长的光对于从第二稀土元素掺杂光纤向第一稀土元素掺杂光纤传播的光，定向发送器的透射率大于地球元素掺杂光纤。

7. 发明授权

US5598294A Optical fiber amplifier and optical fiber communication system 失效
标题翻译：光纤放大器和光纤通信系统
公开(公告)号：US5598294A
公开(公告)日：1997-01-28
申请号：US515714
申请日：1995-08-16
申请人： Tomoaki Uno , Jun Ohya , Masahiro Mitsuda
发明人： Tomoaki Uno , Jun Ohya , Masahiro Mitsuda
IPC分类号： H01S3/067 , H01S3/10 , H01S3/16 , H01S3/23 , H04B10/291 , H04B10/294 , H01S3/00
CPC分类号： H04B10/2941 , H01S3/10023 , H04B10/2912 , H01S2301/04 , H01S3/0675 , H01S3/1608 , H01S3/2333
摘要： The optical fiber amplifier of the invention includes: a rare earth element doped optical fiber, and a pump light generator for optically pumping the rare earth element doped optical fiber. The optical fiber amplifier further includes a reflector for selectively reflecting an optical signal input from an input end of the rare earth element doped optical fiber to the input end, so as to give a gain to the optical signal.
摘要翻译：本发明的光纤放大器包括：稀土元素掺杂光纤，以及用于光学泵浦稀土元素掺杂光纤的泵浦光发生器。光纤放大器还包括用于选择性地将从稀土元素掺杂光纤的输入端输入的光信号反射到输入端的反射器，以便给予光信号增益。

8. 发明授权

US5563733A Optical fiber amplifier and optical fiber transmission system 失效
标题翻译：光纤放大器和光纤传输系统
公开(公告)号：US5563733A
公开(公告)日：1996-10-08
申请号：US519457
申请日：1995-08-25
申请人： Masahiro Mitsuda , Jun Ohya , Tomoaki Uno
发明人： Masahiro Mitsuda , Jun Ohya , Tomoaki Uno
IPC分类号： H01S3/067 , H04B10/291 , H04B10/297 , H04J14/02 , H01S3/00 , H04B10/00
CPC分类号： H04B10/2912 , H01S3/06754 , H04B10/291 , H04B10/2971 , H04J14/0221 , H01S3/06787
摘要： An optical fiber amplifier for optically amplifying a plurality of signals having different wavelengths includes a series of rare earth doped optical fibers and at least one pump light source generating pump light for exciting the series of rare earth doped optical fibers. A first signal among the plurality of signals propagates through a part of the series of rare earth doped optical fibers, and a second signal among the plurality of signals propagates through all of the series of rare earth doped optical fibers.
摘要翻译：用于光学放大具有不同波长的多个信号的光纤放大器包括一系列稀土掺杂光纤和至少一个泵浦光源，用于激发该系列稀土掺杂光纤。多个信号中的第一信号通过一系列稀土掺杂光纤传播，多个信号中的第二信号通过所有的稀土掺杂光纤系列传播。

9. 发明授权

US5598491A Optical fiber amplifier and optical fiber transmission apparatus 失效
标题翻译：光纤放大器和光纤传输装置
公开(公告)号：US5598491A
公开(公告)日：1997-01-28
申请号：US517907
申请日：1995-08-22
申请人： Jun Ohya , Tomoaki Uno , Masahiro Mitsuda
发明人： Jun Ohya , Tomoaki Uno , Masahiro Mitsuda
IPC分类号： H01S3/13 , G02B6/28 , H01S3/30
CPC分类号： H01S3/1302 , H01S2301/04
摘要： The optical fiber amplifier includes a rare earth doped optical fiber and a pumping light source for outputting pumping light for pumping the rare earth doped optical fiber, the optical fiber amplifier optically amplifying signal light received at an input end and outputting the amplified signal light from an output end, wherein the optical fiber amplifier further includes an optical fiber resonator for laser-oscillating a portion of light of spontaneous emission generated in the rare earth doped optical fiber, which has a wavelength shorter than the wavelength of the signal light, thereby to keep a gain substantially fixed independent of a variation in the wavelength of the signal light.
摘要翻译：光纤放大器包括稀土掺杂光纤和用于输出用于泵浦稀土掺杂光纤的泵浦光的泵浦光源，光纤放大器光放大在输入端接收的信号光，并输出来自输出端，其中所述光纤放大器还包括光纤谐振器，用于激光振荡稀土掺杂光纤中产生的自发发光的一部分，其具有比信号光的波长短的波长，从而保持与信号光的波长变化无关的增益。

10. 发明授权

US5530583A Optical signal amplification apparatus and an optical fiber transmission system using the same 失效
标题翻译：光信号放大装置和使用其的光纤传输系统
公开(公告)号：US5530583A
公开(公告)日：1996-06-25
申请号：US342437
申请日：1994-11-18
申请人： Tomoaki Uno , Jun Ohya , Katsuyuki Fujito
发明人： Tomoaki Uno , Jun Ohya , Katsuyuki Fujito
IPC分类号： H01S3/067 , H01S3/23 , H01S3/00
CPC分类号： H01S3/06754 , H01S3/094011
摘要： The optical signal amplification apparatus of this invention includes a plurality of optical fiber amplifiers connected in series, each optical fiber amplifier including: an optical fiber doped with rare earth ions; and a pumping light source for emitting pumping light for exciting the optical fiber, wherein the power of signal light input into each optical fiber amplifier is set so that the value of a distortion component of the signal light output from the optical fiber amplifier is equal to the value of a distortion component of the signal light input into the optical fiber amplifier and that the distortion component of the signal light output from the optical fiber amplifier increases when the power of the signal light input into the optical fiber amplifier increases. An optical fiber transmission system including the optical signal amplification device is also provided.
摘要翻译：本发明的光信号放大装置包括串联连接的多个光纤放大器，每个光纤放大器包括：掺杂有稀土离子的光纤; 以及用于发射用于激励光纤的泵浦光的泵浦光源，其中输入到每个光纤放大器的信号光的功率被设置为使得从光纤放大器输出的信号光的失真分量的值等于当输入到光纤放大器的信号光的功率增加时，输入到光纤放大器的信号光的失真分量的值和从光纤放大器输出的信号光的失真分量增加。还提供了包括光信号放大装置的光纤传输系统。

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