公开(公告)号：US20090022903A1

公开(公告)日：2009-01-22

申请号：US11814894

申请日：2006-03-17

申请人： Hiroyuki Suzuki ,  Masaki Asobe ,  Takeshi Umeki ,  Yoshiki Nishida ,  Osamu Tadanaga ,  Tsutomu Yanagawa ,  Katsuaki Magari ,  Hiroyasu Mawatari ,  Hiroshi Miyazawa ,  Junji Yumoto

发明人： Hiroyuki Suzuki ,  Masaki Asobe ,  Takeshi Umeki ,  Yoshiki Nishida ,  Osamu Tadanaga ,  Tsutomu Yanagawa ,  Katsuaki Magari ,  Hiroyasu Mawatari ,  Hiroshi Miyazawa ,  Junji Yumoto

IPC分类号： B29C71/00

CPC分类号： G02F1/3558

摘要： The present invention provides a periodically-poled structure with high conversion efficiency and improved manufacturing yield. The method for manufacturing a periodically-poled structure in a second order nonlinear optical crystal having a single domain structure (31) includes the steps of forming a resist pattern (32) which matches a polarization-inverted period on a −Z surface of the second order nonlinear optical crystal (31), and applying voltage to the −Z surface as a negative voltage where the resist pattern (32) is formed, and a +Z surface as a positive voltage so as to apply an electric field in the second order nonlinear optical crystal (31), wherein the second order nonlinear optical crystal (31) contains at least one element as a dopant which compensate for the crystal defects.

摘要翻译： 本发明提供了具有高转换效率和提高的制造产量的周期性极化结构。 在具有单畴结构（31）的二阶非线性光学晶体中制造周期性极化结构的方法包括以下步骤：形成与第二晶体结构的-Z表面上的偏振反转周期匹配的抗蚀剂图案（32） 并且向-Z面施加电压作为形成抗蚀剂图案（32）的负电压，并且将+ Z表面作为正电压施加电压，以便以第二次施加电场 非线性光学晶体（31），其中二阶非线性光学晶体（31）包含补偿晶体缺陷的至少一种元素作为掺杂剂。

公开(公告)号：US07729585B2

公开(公告)日：2010-06-01

申请号：US11813982

申请日：2006-01-17

申请人： Katsuaki Magari ,  Tsutomu Yanagawa ,  Yoshiki Nishida ,  Hiroyasu Mawatari ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Hiroshi Miyazawa ,  Junji Yumoto

发明人： Katsuaki Magari ,  Tsutomu Yanagawa ,  Yoshiki Nishida ,  Hiroyasu Mawatari ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Hiroshi Miyazawa ,  Junji Yumoto

IPC分类号： G02B6/00 ,  H04J14/02

CPC分类号： G02F1/3534 ,  G01J1/32 ,  G01J3/108 ,  G01J3/433 ,  G02B2006/12097 ,  H01S5/005 ,  H01S5/0078 ,  H01S5/0092 ,  H01S5/4012 ,  H01S5/4087

摘要： A light source apparatus with modulation function has a wavelength conversion module (75) composed of a nonlinear optical material with a structure having a nonlinear constant modulated periodically. It outputs a difference frequency or sum frequency produced by multiplexing pumping light from semiconductor laser light sources (71) and (72) with different wavelengths through a WDM coupler (74) and by launching the multiplexed light into the optical waveguide. The semiconductor laser light source (72) includes a diffraction grating. The semiconductor laser light source (71) includes a section for modulating output light emitted from its semiconductor laser, and is connected to an external FBG (73) which has a reflection band narrower than a resonance wavelength spacing determined by the device length of the semiconductor laser. The FBG (73) is supplied with the modulated output.

摘要翻译： 具有调制功能的光源装置具有由非线性光学材料组成的波长转换模块（75），该非线性光学材料具有周期性非线性恒定调制的结构。 输出通过WDM耦合器（74）将来自半导体激光光源（71）和（72）的不同波长的泵浦光复用并通过将复用光发射到光波导中而产生的差频或和频。 半导体激光光源（72）包括衍射光栅。 半导体激光光源（71）包括用于调制从其半导体激光器发射的输出光的部分，并连接到具有比由半导体器件的器件长度确定的谐振波长间隔窄的反射带的外部FBG（73） 激光。 FBG（73）提供调制输出。

公开(公告)号：US20100053720A1

公开(公告)日：2010-03-04

申请号：US11813982

申请日：2006-01-17

申请人： Katsuaki Magari ,  Tsutomu Yanagawa ,  Yoshiki Nishida ,  Hiroyasu Mawatari ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Hiroshi Miyazawa ,  Junji Yumoto

发明人： Katsuaki Magari ,  Tsutomu Yanagawa ,  Yoshiki Nishida ,  Hiroyasu Mawatari ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Hiroshi Miyazawa ,  Junji Yumoto

IPC分类号： G02F1/025 ,  G02F1/365 ,  G02F1/377

CPC分类号： G02F1/3534 ,  G01J1/32 ,  G01J3/108 ,  G01J3/433 ,  G02B2006/12097 ,  H01S5/005 ,  H01S5/0078 ,  H01S5/0092 ,  H01S5/4012 ,  H01S5/4087

摘要： A light source apparatus with modulation function has a wavelength conversion module (75) composed of a nonlinear optical material with a structure having a nonlinear constant modulated periodically. It outputs a difference frequency or sum frequency produced by multiplexing pumping light from semiconductor laser light sources (71) and (72) with different wavelengths through a WDM coupler (74) and by launching the multiplexed light into the optical waveguide. The semiconductor laser light source (72) includes a diffraction grating. The semiconductor laser light source (71) includes a section for modulating output light emitted from its semiconductor laser, and is connected to an external FBG (73) which has a reflection band narrower than a resonance wavelength spacing determined by the device length of the semiconductor laser. The FBG (73) is supplied with the modulated output.

摘要翻译： 具有调制功能的光源装置具有由非线性光学材料组成的波长转换模块（75），该非线性光学材料具有周期性非线性恒定调制的结构。 输出通过WDM耦合器（74）将来自半导体激光光源（71）和（72）的不同波长的泵浦光复用并通过将复用光发射到光波导中而产生的差频或和频。 半导体激光光源（72）包括衍射光栅。 半导体激光光源（71）包括用于调制从其半导体激光器发射的输出光的部分，并连接到具有比由半导体器件的器件长度确定的谐振波长间隔窄的反射带的外部FBG（73） 激光。 FBG（73）提供调制输出。

公开(公告)号：US07573921B2

公开(公告)日：2009-08-11

申请号：US11839409

申请日：2007-08-15

申请人： Junji Yumoto ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Kaoru Yoshino ,  Hiroshi Miyazawa ,  Yoshiki Nishida ,  Hirohisa Kanbara ,  Tsutomu Yanagawa ,  Eishi Kubota ,  Hiroyasu Mawatari

发明人： Junji Yumoto ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Kaoru Yoshino ,  Hiroshi Miyazawa ,  Yoshiki Nishida ,  Hirohisa Kanbara ,  Tsutomu Yanagawa ,  Eishi Kubota ,  Hiroyasu Mawatari

IPC分类号： H01S3/10

CPC分类号： G02F1/3775 ,  G01N21/3504 ,  G01N21/39 ,  G02F1/3534 ,  H01S5/4087

摘要： A laser light source is disclosed consisting of first and second lasers that respectively generate laser beams of wavelengths λ1 and λ2. Wavelength λ1 is in the range of 0.9-1.0 μm. A nonlinear optical crystal uses the laser beams of wavelengths λ1 and λ2 as inputs, and outputs a coherent beam having a wavelength λ3 of a difference frequency that satisfies a relationship of 1/λ1−1/λ2=1/λ3. The nonlinear optical crystal has a periodically poled structure of a single period. The wavelength λ3 of the difference frequency varies between 3.1 μm and 2.0 μm when the wavelength λ2 varies between 1.3 μm and 1.8 μm.

摘要翻译： 公开了由分别产生波长λ1和λ2的激光束的第一和第二激光器组成的激光源。 波长λ1在0.9-1.0μm的范围内。 非线性光学晶体使用波长λ1和λ2的激光束作为输入，并且输出具有满足关系1 /λ1-1/λ2= 1 /λ3的差分频率的波长λ3的相干光束。 非线性光学晶体具有单周期的周期性极化结构。 当波长λ2在1.3μm和1.8μm之间变化时，差频的波长λ3在3.1mum和2.0μm之间变化。

公开(公告)号：US07391795B2

公开(公告)日：2008-06-24

申请号：US10531485

申请日：2004-07-30

申请人： Junji Yumoto ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Kaoru Yoshino ,  Hiroshi Miyazawa ,  Yoshiki Nishida ,  Hirohisa Kanbara ,  Tsutomu Yanagawa ,  Eishi Kubota ,  Hiroyasu Mawatari

发明人： Junji Yumoto ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Kaoru Yoshino ,  Hiroshi Miyazawa ,  Yoshiki Nishida ,  Hirohisa Kanbara ,  Tsutomu Yanagawa ,  Eishi Kubota ,  Hiroyasu Mawatari

IPC分类号： H01S3/10

CPC分类号： G02F1/3775 ,  G01N21/3504 ,  G01N21/39 ,  G02F1/3534 ,  H01S5/4087

摘要： The invention provides a compact laser light source whose wavelength can be designed freely in a wavelength band in which the semiconductor laser has not been put to practical use by combining an efficient nonlinear optical crystal and high-power semiconductor lasers for optical communication. In one embodiment, the laser light source includes: a first laser for generating a laser beam of a wavelength λ1; a second laser for generating a laser beam of a wavelength λ2; and a nonlinear optical crystal that allows the laser beam of wavelength λ1 and the laser beam of wavelength λ2 as inputs and outputs a coherent beam having a wavelength λ3 of a sum frequency that satisfies a relationship of 1/λ1+1/λ2=1/λ3. The wavelength λ3 of the sum frequency is 589.3±2 nm that is equivalent to the sodium D line.

摘要翻译： 本发明提供一种紧凑的激光光源，其波长可以通过组合有效的非线性光学晶体和用于光通信的大功率半导体激光器而在半导体激光器尚未投入实际使用的波长带中自由设计。 在一个实施例中，激光光源包括：用于产生波长λ1的激光束的第一激光器; 用于产生波长λ2的激光束的第二激光器; 以及允许波长λ1的激光束和波长λ2的激光束作为输入的非线性光学晶体，并输出具有波长λ< 3和满足1 /λ1 + 1 /λ2/1 /λ3 3的关系的和频。 和频率的波长λ3 <3 SUB是相当于钠D线的589.3±2nm。

公开(公告)号：US20070297465A1

公开(公告)日：2007-12-27

申请号：US11839409

申请日：2007-08-15

申请人： Junji Yumoto ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Kaoru Yoshino ,  Hiroshi Miyazawa ,  Yoshiki Nishida ,  Hirohisa Kanbara ,  Tsutomu Yanagawa ,  Eishi Kubota ,  Hiroyasu Mawatari

发明人： Junji Yumoto ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Kaoru Yoshino ,  Hiroshi Miyazawa ,  Yoshiki Nishida ,  Hirohisa Kanbara ,  Tsutomu Yanagawa ,  Eishi Kubota ,  Hiroyasu Mawatari

IPC分类号： H01S3/10

CPC分类号： G02F1/3775 ,  G01N21/3504 ,  G01N21/39 ,  G02F1/3534 ,  H01S5/4087

摘要： A laser light source is disclosed consisting of first and second lasers that respectively generate laser beams of wavelengths λ1 and λ2. Wavelength λ1 is in the range of 0.9-1.0 μm. A nonlinear optical crystal uses the laser beams of wavelengths λ1 and λ2 as inputs, and outputs a coherent beam having a wavelength λ3 of a difference frequency that satisfies a relationship of 1/λ1−1/λ2=1/λ3. The nonlinear optical crystal has a periodically poled structure of a single period. The wavelength λ3 of the difference frequency varies between 3.1 μm and 2.0 μm when the wavelength λ2 varies between 1.3 μm and 1.8 μm.

摘要翻译： 公开了一种激光源，其由分别产生波长λ1和λ2的激光束的第一和第二激光器组成。 波长λ1在0.9-1.0μm的范围内。 非线性光学晶体使用波长λ1和λ2的激光束作为输入，并且输出波长λ3/3的相干光束 满足1 /λ1/ 2 /λ2/ 1 /λ3的关系的差频。 非线性光学晶体具有单周期的周期性极化结构。 当波长λ2在1.3μm和1.8μm之间变化时，差频的波长λ3 <3>在3.1mum和2.0μm之间变化。

公开(公告)号：US20060013270A1

公开(公告)日：2006-01-19

申请号：US10531485

申请日：2004-07-30

申请人： Junji Yumoto ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Kaoru Yoshino ,  Hiroshi Miyazawa ,  Yoshiki Nishida ,  Hirohisa Kanbara ,  Tsutomu Yanagawa ,  Eishi Kubota ,  Hiroyasu Mawatari

发明人： Junji Yumoto ,  Osamu Tadanaga ,  Masaki Asobe ,  Hiroyuki Suzuki ,  Kaoru Yoshino ,  Hiroshi Miyazawa ,  Yoshiki Nishida ,  Hirohisa Kanbara ,  Tsutomu Yanagawa ,  Eishi Kubota ,  Hiroyasu Mawatari

IPC分类号： H01S3/10

CPC分类号： G02F1/3775 ,  G01N21/3504 ,  G01N21/39 ,  G02F1/3534 ,  H01S5/4087

摘要： The invention provides a compact laser light source whose wavelength can be designed freely in a wavelength band in which the semiconductor laser has not been put to practical use by combining an efficient nonlinear optical crystal and high-power semiconductor lasers for optical communication. In one embodiment, the laser light source includes: a first laser for generating a laser beam of a wavelength λ1; a second laser for generating a laser beam of a wavelength λ2; and a nonlinear optical crystal that allows the laser beam of wavelength λ1 and the laser beam of wavelength λ2 as inputs and outputs a coherent beam having a wavelength λ3 of a sum frequency that satisfies a relationship of 1/λ1+1/λ2=1/λ3. The wavelength λ3 of the sum frequency is 589.3±2 nm that is equivalent to the sodium D line.

摘要翻译： 本发明提供一种紧凑的激光光源，其波长可以通过组合有效的非线性光学晶体和用于光通信的大功率半导体激光器而在半导体激光器尚未投入实际使用的波长带中自由设计。 在一个实施例中，激光光源包括：用于产生波长λ1的激光束的第一激光器; 用于产生波长λ2的激光束的第二激光器; 以及允许波长λ1的激光束和波长λ2的激光束作为输入的非线性光学晶体，并输出具有波长λ< 3和满足1 /λ1 + 1 /λ2/1 /λ3 3的关系的和频。 和频率的波长λ3 <3 SUB是相当于钠D线的589.3±2nm。