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1.发明授权Optical isolator, faraday rotator suitable for use in the same, and laser diode module incorporating the same 失效光隔离器，适用于其的法拉第转子，以及包含该光隔离器的激光二极管模块
公开(公告)号：US5760946A
公开(公告)日：1998-06-02
申请号：US835790
申请日：1997-04-15
CPC分类号： G02F1/093 , G02B6/4208 , Y10S372/703
摘要： An optical isolator has a low-profile construction. Two rod-like permanent magnets are on two sides of a Faraday element in parallel to an optical axis. The two permanent magnets are sandwiched and fixed between two ferromagnetic frames each having a light path hole therein. The ferromagnetic frames are each provided with a protrusion for guiding the magnetic flux generated by the permanent magnets to the Faraday element.
摘要翻译： 光隔离器具有薄型结构。 两根棒状永磁体平行于光轴位于法拉第元件的两侧。 两个永磁体被夹在两个铁磁框架之间并固定在两个铁磁框架之间，每个铁磁框架之间具有光通路孔。 铁磁框架各自设置有用于将由永磁体产生的磁通引导到法拉第元件的突起。
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公开(公告)号：US5966938A
公开(公告)日：1999-10-19
申请号：US607318
申请日：1996-02-26
申请人： Yasunori Nagakubo , Takashi Tsuda , Tetsuo Ishizaka , Shunichi Sato , Saeko Yokoi , Manabu Komiyama , Toshio Ohya , Noriaki Mizuguchi
发明人： Yasunori Nagakubo , Takashi Tsuda , Tetsuo Ishizaka , Shunichi Sato , Saeko Yokoi , Manabu Komiyama , Toshio Ohya , Noriaki Mizuguchi
IPC分类号： H01S3/04 , F25B21/04 , G05D23/19 , G05D23/20 , H01L35/28 , H01S5/024 , H01S5/068 , F25B21/02
CPC分类号： H01S5/02415 , F25B21/04 , G05D23/1919 , H01L35/28 , F25B2321/0212
摘要： A Peltier control circuit detects a temperature of a device combined with a Peltier device and controls a current flowing through the Peltier device so as to keep the temperature of the device at a predetermined value. The circuit has a temperature sensing section for detecting the temperature of a device, a comparing section for comparing a temperature detection value with a predetermined temperature reference value, a limiting section for providing a comparison output with the limitation of a current flowing through the Peltier device and providing the limitation with a predetermined temperature characteristics, and a driving section for providing the Peltier device with an input or output driving current in accordance with the comparison output via the limiting section.
摘要翻译： 佩尔贴控制电路检测与珀耳帖装置组合的装置的温度，并控制流过珀尔帖装置的电流，以便将装置的温度保持在预定值。 该电路具有用于检测装置的温度的温度检测部分，用于将温度检测值与预定温度参考值进行比较的比较部分，用于提供比较输出和限制流过珀尔帖装置的电流的限制部分 并提供具有预定温度特性的限制;以及驱动部分，用于经由限制部分根据比较输出为珀耳帖装置提供输入或输出驱动电流。
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公开(公告)号：US06490303B1
公开(公告)日：2002-12-03
申请号：US08733628
申请日：1996-10-17
IPC分类号： G02B600
CPC分类号： H01S5/02415 , H01L2224/48091 , H01S5/0014 , H01S5/005 , H01S5/02216 , H01S5/02284 , H01S5/02438 , H01S5/042 , H01S5/06216 , H01S5/0683 , H01L2924/00014
摘要： Disclosed herein is a laser diode module having a thermoelectric cooling element, a laser diode, and a thermistor in a housing. The thermoelectric cooling element has a first surface and a second surface between which heat exchange is performed. The first surface is in close contact with an inner surface of the housing. A base is provided on the second surface in close contact therewith. A laser carrier and a thermistor carrier are provided on the base in close contact therewith. The laser diode and the thermistor are provided on the laser carrier and the thermistor carrier in close contact therewith, respectively. A portion of the base in the vicinity of the laser carrier is thermally connected to the housing by a metal plate, for example, thereby allowing high-precision temperature control of the laser diode.
摘要翻译： 这里公开了一种在壳体中具有热电冷却元件，激光二极管和热敏电阻的激光二极管模块。 热电冷却元件具有第一表面和在其之间执行热交换的第二表面。 第一表面与壳体的内表面紧密接触。 基部与第二表面紧密接触地设置。 激光载体和热敏电阻载体与底座紧密接触地设置在基座上。 激光二极管和热敏电阻分别设置在激光载体和热敏电阻载体上。 激光载体附近的基部的一部分例如通过金属板热连接到壳体，从而允许激光二极管的高精度温度控制。
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公开(公告)号：US5703893A
公开(公告)日：1997-12-30
申请号：US506866
申请日：1995-07-25
CPC分类号： H01S5/02415 , H01S5/02216 , H01L2224/48091 , H01S5/0014 , H01S5/005 , H01S5/02284 , H01S5/02438 , H01S5/042 , H01S5/06216 , H01S5/0683
摘要： Disclosed herein is a laser diode module having a thermoelectric cooling element, a laser diode, and a thermistor in a housing. The thermoelectric cooling element has a first surface and a second surface between which heat exchange is performed. The first surface is in close contact with an inner surface of the housing. A base is provided on the second surface in close contact therewith. A laser carrier and a thermistor carrier are provided on the base in close contact therewith. The laser diode and the thermistor are provided on the laser carrier and the thermistor carrier in close contact therewith, respectively. A portion of the base in the vicinity of the laser carrier is thermally connected to the housing by a metal plate, for example, thereby allowing high-precision temperature control of the laser diode.
摘要翻译： 这里公开了一种在壳体中具有热电冷却元件，激光二极管和热敏电阻的激光二极管模块。 热电冷却元件具有第一表面和在其之间执行热交换的第二表面。 第一表面与外壳的内表面紧密接触。 基部与第二表面紧密接触地设置。 激光载体和热敏电阻载体与底座紧密接触地设置在基座上。 激光二极管和热敏电阻分别设置在激光载体和热敏电阻载体上。 激光载体附近的基部的一部分例如通过金属板热连接到壳体，从而允许激光二极管的高精度温度控制。
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公开(公告)号：US5515682A
公开(公告)日：1996-05-14
申请号：US342032
申请日：1994-11-17
申请人： Yasunori Nagakubo , Takashi Tsuda , Tetsuo Ishizaka , Shunichi Sato , Saeko Yokoi , Manabu Komiyama , Toshio Ohya , Noriaki Mizuguchi
发明人： Yasunori Nagakubo , Takashi Tsuda , Tetsuo Ishizaka , Shunichi Sato , Saeko Yokoi , Manabu Komiyama , Toshio Ohya , Noriaki Mizuguchi
IPC分类号： H01S3/04 , F25B21/04 , G05D23/19 , G05D23/20 , H01L35/28 , H01S5/024 , H01S5/068 , F25B21/02
CPC分类号： H01S5/02415 , F25B21/04 , G05D23/1919 , H01L35/28 , F25B2321/0212
摘要： A Peltier control circuit detects a temperature of a device combined with a Peltier device and controls a current flowing through the Peltier device so as to keep the temperature of the device at a predetermined value. The circuit has a temperature sensing section for detecting the temperature of a device, a comparing section for comparing a temperature detection value with a predetermined temperature reference value, a limiting section for providing a comparison output with the limitation of a current flowing through the Peltier device and providing the limitation with a predetermined temperature characteristics, and a driving section for providing the Peltier device with an input or output driving current in accordance with the comparison output via the limiting section.
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公开(公告)号：US5214660A
公开(公告)日：1993-05-25
申请号：US763703
申请日：1991-09-23
申请人： Takayuki Masuko , Shunichi Satoh , Tetsuo Ishizaka
发明人： Takayuki Masuko , Shunichi Satoh , Tetsuo Ishizaka
CPC分类号： H01S5/024 , G02B6/4204 , G02B6/4208 , H01L2224/48091 , H01L2924/19107 , H01S5/02212 , H01S5/02272 , H01S5/02276 , H01S5/02284 , H01S5/02415 , H01S5/0425
摘要： A thermistor assembly is formed by fixedly attaching a thermistor on to a base formed of a material having good heat conductivity and the thermistor assembly and an LD chip are fixedly attached on to a carrier arranged in contact with an electronic cooling element using brazing materials with different melting points, so that, when, for example, the thermistor is found faulty, the thermistor can be easily exchanged with a good one.
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公开(公告)号：US5212699A
公开(公告)日：1993-05-18
申请号：US729997
申请日：1991-07-15
申请人： Takayuki Masuko , Shunichi Satoh , Tetsuo Ishizaka , Toshio Ohya
发明人： Takayuki Masuko , Shunichi Satoh , Tetsuo Ishizaka , Toshio Ohya
CPC分类号： H01S5/02415 , G02B6/4208 , G02B6/4263 , G02B6/4271 , G02B6/4272 , H01L2224/48091 , H01L2224/48137 , H01S5/02212 , H01S5/02276 , H01S5/02284 , H01S5/024
摘要： A laser diode assembly capable of controlling a temperature of a laser diode chip with a high accuracy. A Peltier device is mounted on a base member, and a carrier is mounted on the Peltier device. On the carrier are mounted the laser diode chip, a thermistor, and a relay block. A terminal for connecting the thermistor to an external circuit is provided so as to extend through the base member. The thermistor and the relay block are connected together by wire bonding, and the relay block and the terminal are also connected together by wire bonding. The laser diode assembly further includes a control circuit for controlling a driving current for the Peltier device contacting with the carrier so as to maintain a resistance of the thermistor fixed on the carrier at a constant value.
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公开(公告)号：US5751877A
公开(公告)日：1998-05-12
申请号：US621092
申请日：1996-03-22
CPC分类号： G02B6/4237 , G02B6/4204
摘要： A semiconductor laser module includes a semiconductor laser assembly formed by containing a semiconductor laser in a package, a lens assembly fixed by welding to the package of the semiconductor laser assembly, and a fiber assembly fixed by welding to the lens assembly. The semiconductor laser assembly includes a base fixed to the package and a carrier fixed to the base. The semiconductor laser is mounted on the carrier. A lens holder of the lens assembly is spot-welded to the package at a plurality of positions set below the upper surface of the base.
摘要翻译： 半导体激光器模块包括通过在封装中容纳半导体激光器而形成的半导体激光器组件，通过焊接固定到半导体激光器组件的封装的透镜组件，以及通过焊接固定到透镜组件的光纤组件。 半导体激光器组件包括固定到封装的基座和固定到基座的载体。 半导体激光器安装在载体上。 透镜组件的透镜保持器在设置在基座的上表面下方的多个位置处点焊到封装。
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公开(公告)号：US5150230A
公开(公告)日：1992-09-22
申请号：US762193
申请日：1991-09-19
申请人： Takayuki Masuko , Shunichi Satoh , Tetsuo Ishizaka , Toshio Ohya
发明人： Takayuki Masuko , Shunichi Satoh , Tetsuo Ishizaka , Toshio Ohya
CPC分类号： G02B6/4248 , G02B6/327 , G02B7/028
摘要： A rod lens fixing method which can prevent the generation of cracks in a rod lens due to annealing to be carried out after welding a lens assembly. The rod lens fixing method includes the steps of providing a flanged split sleeve having an axial slit extending continuously from one end of the flanged split sleeve to the other end thereof, the axial slit being wide enough at least a flange of the flanged split sleeve to permit laser welding; press-fitting the rod lens into the flanged split sleeve; and applying a solder into the axial slit to solder the rod lens to the flange split sleeve. This method further includes the steps of inserting the flanged split sleeve into a bore formed at one end portion of a sleeve, the bore having a diameter larger than an outer diameter of the flanged split sleeve and smaller than an outer diameter of the flange; and laser-welding the flange to one end surface of the sleeve at a plurality of points on an outer circumference of the flange and in the axial slit. The laser welding in the axial slit of the flange causes the acting of shrinkage forces in the flange to thereby prevent the generation of cracks in the rods lens during the annealing.
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公开(公告)号：US07386198B2
公开(公告)日：2008-06-10
申请号：US11248232
申请日：2005-10-13
IPC分类号： G02B6/12
CPC分类号： G02B6/125 , G02B6/42 , G02B6/4214 , G02B2006/12104 , G02B2006/12154 , G02B2006/12159 , G02F1/0123 , G02F1/035 , G02F1/225 , G02F2201/34
摘要： The present invention has an object to provide an optical device capable of leading out a light propagated through an optical waveguide to a desired substrate side face while maintaining the sufficient power of the light, within a range of limited substrate size. To this end, according to the optical device of the present invention, a groove is formed in the vicinity of an end portion on the optical output side of the optical waveguide, on the substrate on which the optical waveguide is formed, a side wall of the groove is used as a reflecting plane, the light output from the optical waveguide is reflected by the reflecting plane, and the reflected light is emitted from the desired substrate side face.
摘要翻译： 本发明的目的是提供一种光学装置，其能够在有限的基板尺寸的范围内将保持足够的光功率的光通过光波导传播到期望的基板侧面。 为此，根据本发明的光学装置，在形成有光波导的基板上的光波导的光输出侧的端部附近形成有槽， 使用凹槽作为反射面，从光波导输出的光被反射面反射，反射光从期望的基板侧面发射。
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