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1. 发明授权

US6023366A Optical communication system and optical amplifier 失效
标题翻译：光通信系统和光放大器
公开(公告)号：US6023366A
公开(公告)日：2000-02-08
申请号：US763102
申请日：1996-12-10
申请人： Susumu Kinoshita
发明人： Susumu Kinoshita
IPC分类号： H04B10/2507 , H01S3/067 , H01S3/10 , H01S3/13 , H01S3/131 , H04B10/077 , H04B10/296 , H04J14/02 , G02F1/35 , H01S3/133
CPC分类号： H04B10/296 , H01S3/1301 , H04B10/0771 , H04B10/0775 , H04B10/0777 , H04J14/0221 , H04J14/0246 , H01S2301/06 , H01S3/06754 , H01S3/10015 , H01S3/1305 , H04B2210/075 , H04B2210/078 , H04J14/0227 , H04J14/0279 , H04J14/0298
摘要： An optical communication system having a transmitting station for outputting WDM(wavelength-division multiplexing) signal light, an optical fiber transmission line, a receiving station, and an optical repeater including an optical amplifier. The transmitting station includes a supervisory circuit for detecting the number of channels of the WDM signal light and transmitting supervisory information including the number of channels to the optical repeater. The optical repeater further includes a circuit for controlling the optical amplifier so that the output level of the optical amplifier becomes a target level. The target level is set according to the supervisory information. According to the structure, it can be possible to provide a system which can easily respond to a change in the number of WDM channels.
摘要翻译：一种具有用于输出WDM（波分复用）信号光的发送站，光纤传输线，接收站和包括光放大器的光中继器的光通信系统。发送站包括用于检测WDM信号光的信道数目的监控电路，并将包括通道数的监控信息发送到光中继器。光中继器还包括用于控制光放大器以使光放大器的输出电平成为目标电平的电路。目标级别根据监控信息设置。根据该结构，可以提供能够容易地应对WDM信道数量变化的系统。

2. 发明授权

US5471490A Device in which electromagnetic radiation is raised in frequency and apparatus for optically scanning an information plane, comprising such a device 失效
标题翻译：其中电磁辐射在频率上升高的装置和用于光学扫描信息平面的装置，包括这种装置
公开(公告)号：US5471490A
公开(公告)日：1995-11-28
申请号：US996215
申请日：1992-12-23
申请人： Coen T. H. F. Liedenbaum , Arnoldus L. G. J. Severens , Ronald R. Drenten , Michiel J. Jongerius
发明人： Coen T. H. F. Liedenbaum , Arnoldus L. G. J. Severens , Ronald R. Drenten , Michiel J. Jongerius
IPC分类号： G02F1/37 , G11B7/125 , H01S3/06 , H01S3/108 , H01S3/109 , H01S5/00 , H01S5/06 , H01S3/133 , H01S3/139
CPC分类号： G11B7/126 , H01S3/109 , H01S3/08059 , H01S3/1055 , H01S5/0092 , H01S5/0428 , H01S5/06216 , H01S5/0687 , H01S5/141 , H01S5/143 , H01S5/146
摘要： A doubler for a pulsed multimode laser diode. A controllable feedback loop controls the laser output such that one of the output wavelengths, or the average of two of them, fall within the acceptance bandwidth of a non-linear optical medium. Alternatively, radiation emitted from the pulsed laser is reflected over a path length such that reflected energy reenters the laser during the build-up of a following pulse.
摘要翻译：脉冲多模激光二极管的倍增器。可控反馈环路控制激光输出，使得输出波长之一或其两个的平均值落在非线性光学介质的接受带宽内。或者，从脉冲激光发射的辐射在路径长度上反射，使得反射的能量在后续脉冲的累积期间重新入射激光。

3. 发明授权

US5323408A Regulation of preconduction current of a laser diode using the third derivative of the output signal 失效
标题翻译：使用输出信号的三阶导数来调节激光二极管的预电容电流
公开(公告)号：US5323408A
公开(公告)日：1994-06-21
申请号：US94841
申请日：1993-07-20
申请人： Alois Hahn , Markus Hiebexler , Richard Hirn , Franz Lauritsch
发明人： Alois Hahn , Markus Hiebexler , Richard Hirn , Franz Lauritsch
IPC分类号： H01S5/062 , H01S5/068 , H01S5/0683 , H01S3/133
CPC分类号： H01S5/0683 , H01S5/06209 , H01S5/06804 , H01S5/06812 , H01S5/06825 , H01S5/06832
摘要： A process for controlling the preconduction current of a laser diode that operates in conjunction with a monitor diode in a control circuit with operational amplifiers, comprising signal processing filters, an electric supply unit such as, e.g., a power source, and a zero crossing detector, where the laser diode (5a) is driven by a linear current ramp signal provided by the supply unit, that the output signal (16) of the monitor diode (15) is differentiated three times, and that, when a zero crossing of the triple-differentiated monitor diode output signal (16) is detected, an optimum current of the current ramp signal is retained by the action of the zero passage detector.
摘要翻译：用于控制与具有运算放大器的控制电路中的监视二极管一起工作的激光二极管的预电容电流的过程，包括信号处理滤波器，诸如电源的供电单元和过零检测器，其中激光二极管（5a）由供电单元提供的线性电流斜坡信号驱动，监视二极管（15）的输出信号（16）被差分三次，而当检测到三分微分监视二极管输出信号（16），通过零通过检测器的动作保持电流斜坡信号的最佳电流。

4. 发明授权

US5568464A Semiconductor laser driving apparatus utilizing three current sources to control read and write light power 失效
标题翻译：利用三个电流源来控制读写光功率的半导体激光驱动装置
公开(公告)号：US5568464A
公开(公告)日：1996-10-22
申请号：US343852
申请日：1994-11-17
申请人： Yuji Horie
发明人： Yuji Horie
IPC分类号： G11B7/125 , H01S5/042 , H01S5/0683 , G11B7/00 , H01S3/133
CPC分类号： G11B7/126 , H01S5/0683 , H01S5/06832
摘要： A semiconductor laser driving apparatus for use in an information recording/reproducing apparatus that records and reproduces information by illuminating a medium with a laser beam. The semiconductor laser driving apparatus includes a semiconductor laser for generating the laser beam, a photo detector for detecting the output of the semiconductor laser, a first current source for generating a base optical power of the output of the semiconductor laser wherein the base optical power is used in recording information, a second current source for adjusting a reproducing optical power of the output of the semiconductor laser wherein the reproducing optical power is used to reproduce information, a third current source for adjusting a recording optical power of the output of the semiconductor laser wherein the recording optical power is used in recording information, and an optical power control circuit for controlling the optical output power of the semiconductor laser in such a manner that the reproducing optical power used to reproduce information is generated by the sum of a current provided by the first current source and a current provided by the second current source, the recording optical power used to record information is generated by the sum of the current provided by the first current source and a current provided by the third current source, and the base optical power used to record information is generated by the current provided by the first current source.
摘要翻译：一种用于信息记录/再现装置的半导体激光器驱动装置，其通过用激光束照射介质来记录和再现信息。半导体激光器驱动装置包括用于产生激光束的半导体激光器，用于检测半导体激光器的输出的光电检测器，用于产生半导体激光器的输出的基本光功率的第一电流源，其中基本光功率为用于记录信息的第二电流源，用于调节半导体激光器的输出的再现光功率的第二电流源，其中再现光功率用于再现信息;第三电流源，用于调整半导体激光器的输出的记录光功率其中记录光功率用于记录信息，以及光功率控制电路，用于以这样的方式控制半导体激光器的光输出功率，使得用于再现信息的再现光功率是由由第一个电流源和由第二个电流提供的电流用于记录信息的记录光功率由第一电流源提供的电流和由第三电流源提供的电流之和产生，并且用于记录信息的基本光功率由通过第一个当前来源。

5. 发明授权

US5473625A Tunable distributed Bragg reflector laser for wavelength dithering 失效
标题翻译：用于波长抖动的可调分布布拉格反射器激光器
公开(公告)号：US5473625A
公开(公告)日：1995-12-05
申请号：US313519
申请日：1994-09-26
申请人： Per B. Hansen , Uziel Koren
发明人： Per B. Hansen , Uziel Koren
IPC分类号： H01S5/00 , H01S5/026 , H01S5/042 , H01S5/06 , H01S5/0625 , H04B10/18 , H01S3/133
CPC分类号： H04B10/2537 , H01S5/0612 , H01S5/06256 , H01S2301/03 , H01S5/0261 , H01S5/0265
摘要： An apparatus and method are disclosed for suppressing stimulated Brillouin scattering (SBS) of the output light from a laser such as a distributed Bragg reflector (DBR) semiconductor laser using a tuner which responds to a dither signal to continuously tune the semiconductor laser to reduce stimulated Brillouin scattering therefrom. The tuner responds to a continuously applied sinusoidal current as the dither signal to tune the semiconductor laser by controlling the lasing wavelength thereof. The tuner includes an input region for receiving the dither signal. In a first embodiment, the tuner includes a resistor thermally connected to a passive waveguide of the semiconductor laser, with the resistor responding to the dither signal for continuously heating the passive waveguide to control the tuning of the semiconductor laser. In a second embodiment, the tuner responds to the dither signal to continuously bias the passive waveguide of the semiconductor laser to control the tuning of the semiconductor laser. The tuner continuously injects a biasing current into the passive waveguide of the semiconductor laser to continuously bias the passive waveguide.
摘要翻译：公开了一种用于抑制来自诸如使用调谐器的分布布拉格反射器（DBR）半导体激光器的来自激光器的输出光的受激布里渊散射（SBS）的装置和方法，所述调谐器响应于抖动信号以连续调谐半导体激光器以减少受激波长布里渊散射。调谐器响应连续施加的正弦电流作为抖动信号，以通过控制其激光波长来调谐半导体激光器。调谐器包括用于接收抖动信号的输入区域。在第一实施例中，调谐器包括热连接到半导体激光器的无源波导的电阻器，电阻器响应抖动信号，用于连续加热无源波导以控制半导体激光器的调谐。在第二实施例中，调谐器响应抖动信号以连续偏置半导体激光器的无源波导以控制半导体激光器的调谐。调谐器连续地向半导体激光器的无源波导注入偏置电流，以连续地偏置无源波导。

6. 发明授权

US5408482A Apparatus for and method of controlling the output of a laser source 失效
标题翻译：用于控制激光源输出的装置和方法
公开(公告)号：US5408482A
公开(公告)日：1995-04-18
申请号：US8622
申请日：1993-01-25
申请人： Osamu Nagano , Masanori Mizuno , Tsukasa Fukushima
发明人： Osamu Nagano , Masanori Mizuno , Tsukasa Fukushima
IPC分类号： B23K26/42 , H01S3/00 , H01S3/10 , H01S3/104 , H01S3/105 , H01S3/131 , H01S3/133
CPC分类号： H01S3/1312 , B23K26/702 , H01S3/10
摘要： An apparatus for and a method of controlling a laser oscillator for use as a laser source in a machining operation or the like is disclosed. In particular, the present invention compensates for a deviation of an actual input/output characteristic of a laser oscillator from a normal (expected) input/output characteristic due to, for example, aging and the like. The present invention approximates the actual input/output characteristic and stores the characteristic as a pattern in a storage device. In response to a detection of the actual laser output and an external intensity command signal, the present invention refers to the input/output characteristic pattern thus approximated and generates an input intensity command signal for controlling the laser oscillator to accurately produce the desired laser beam intensity irrespective of the deviation between the actual input/output characteristic and the normal characteristic.
摘要翻译：公开了一种在加工操作等中控制用作激光源的激光振荡器的装置和方法。特别地，本发明由于例如老化等而补偿激光振荡器的实际输入/输出特性与正常（预期）输入/输出特性的偏差。本发明近似于实际的输入/输出特性，并将特征作为图案存储在存储装置中。响应于实际激光输出的检测和外部强度指令信号，本发明参考如此近似的输入/输出特性图案，并且产生用于控制激光振荡器以精确地产生所需激光束强度的输入强度指令信号而与实际输入/输出特性与正常特性之间的偏差无关。

7. 发明授权

US6061371A System for monitoring amount of light emitted from surface emitting laser 失效
标题翻译：用于监测从表面发射激光发射的光量的系统
公开(公告)号：US6061371A
公开(公告)日：2000-05-09
申请号：US30845
申请日：1998-02-26
申请人： Atsushi Uejima , Yoshiharu Okino , Yoshinori Morimoto , Toshiyuki Inoue , Kenichi Kodama
发明人： Atsushi Uejima , Yoshiharu Okino , Yoshinori Morimoto , Toshiyuki Inoue , Kenichi Kodama
IPC分类号： H01S5/00 , B41J2/47 , G02B26/12 , H01S5/022 , H01S5/068 , H01S5/0683 , H01S5/183 , H01S5/42 , H04N1/40 , H01S3/133
CPC分类号： H01S5/02296 , B41J2/473 , G02B26/123 , H04N1/40037 , H04N1/4005 , H01S5/06832 , H01S5/183 , H01S5/4087 , H01S5/423
摘要： A system for monitoring the amount of light emitted from a surface emitting laser includes a beam splitter which is fixed to the surface emitting laser and splits a part of a laser beam emitted from the laser as a monitor light, and a photodetector which detects the monitor light.
摘要翻译：用于监测从表面发射激光器发射的光量的系统包括：分束器，其固定到表面发射激光器并且将从激光器发射的激光束的一部分分裂为监视光;以及光电检测器，其检测监视器光。

8. 发明授权

US5553087A Frequency stabilized laser diode 失效
标题翻译：频率稳定的激光二极管
公开(公告)号：US5553087A
公开(公告)日：1996-09-03
申请号：US369336
申请日：1995-01-06
申请人： Helmut H. Telle
发明人： Helmut H. Telle
IPC分类号： H01S5/068 , H01S5/0683 , H01S5/0687 , H01S3/133 , H03L7/26
CPC分类号： H01S5/0687 , H01S5/06825 , H01S5/06837
摘要： A laser diode has its frequency locked to the frequency of an absorption line of rubidium (water and oxides of nitrogen are also disclosed). The level of absorption, and hence the frequency relationship of the laser light with respect to the absorption line is detected by a photodetector. The absolute frequency of the laser light is guaranteed by initially adjusting the temperature of the diode until the frequency of the light is brought into coincidence with a first absorption line, subsequently maintaining the temperature at a constant level, and adjusting the drive current of the diode until the frequency of laser light achieves coincidence with an adjacent transition line. This ensures that the diode frequency is locked to the same absorption line each occasion the diode is switched on. Additionally, the change in drive current between coincidence with the two adjacent absorption lines is monitored as a further check that the correct transition line has been selected. An error signal for a current servo, which drives the diode, is generated from the photodetector output. An oscillating magnetic field, causing cyclic Zeeman splitting of the absorption lines, and hence cyclic modulation of their frequency, causes a corresponding modulation in the photodetector output. Successive half cycles of the photodetector output are integrated and subtracted from each other in order to generate the error signal; the sign of the error signal thus being indicative of the direction of frequency drift in the laser light.
摘要翻译：激光二极管的频率锁定到铷的吸收线的频率（也公开了水和氮的氧化物）。通过光电检测器检测激光的水平，因此激光相对于吸收线的频率关系。通过初始调节二极管的温度来保证激光的绝对频率，直到光的频率与第一吸收线重合为止，随后将温度保持在恒定水平，并且调整二极管的驱动电流直到激光的频率与相邻的过渡线达到一致。这样可以确保二极管的频率在二极管接通时被锁定到相同的吸收线。此外，作为进一步检查已经选择了正确的转换线，进一步检查了与两个相邻吸收线的一致之间的驱动电流的变化。从光电检测器输出产生用于驱动二极管的电流伺服的误差信号。振荡磁场引起吸收线的循环塞曼分裂，从而导致其频率的循环调制，导致光电检测器输出中的相应调制。将光电检测器输出的连续半周期相互积分并相减，以产生误差信号; 因此，误差信号的符号表示激光中的频率漂移的方向。

9. 发明授权

US5477555A Method and device for generating optical pulses 失效
标题翻译：用于产生光脉冲的方法和装置
公开(公告)号：US5477555A
公开(公告)日：1995-12-19
申请号：US184391
申请日：1994-01-21
申请人： Jean Debeau , Remi Boittin
发明人： Jean Debeau , Remi Boittin
IPC分类号： G01C19/72 , G02F2/00 , H01S3/083 , H01S5/06 , H01S5/065 , H01S5/14 , H01S3/133 , H01S3/098
CPC分类号： H01S5/065 , H01S5/146
摘要： Method and device for generating optical pulses.According to the invention, in order to generate an optical signal in the form of optical pulses, a semiconductor laser (2) is made to function as gain commutation, and a portion of the light produced by this laser is reinjected into the laser. The light to be reinjected is previously filtered by an optical filter (12) which is tuned to one of the modes of the laser. Another portion of the light produced by the laser is used as an optical signal after having been filtered this portion by the optical filter.
摘要翻译：用于产生光脉冲的方法和装置。根据本发明，为了产生光脉冲形式的光信号，使半导体激光器（2）起到增益换向的作用，将由该激光器产生的光的一部分重新注入到激光器中。要被注入的光被先前被调谐到激光器模式之一的滤光器（12）滤波。在通过滤光器对该部分进行过滤之后，由激光产生的光的另一部分用作光信号。

10. 发明授权

US5402432A Semi-conductor laser device constant power output controller 失效
标题翻译：半导体激光装置恒功率输出控制器
公开(公告)号：US5402432A
公开(公告)日：1995-03-28
申请号：US69807
申请日：1993-06-01
申请人： Chia-Li Chou
发明人： Chia-Li Chou
IPC分类号： H01S5/068 , H01S5/0683 , H01S3/133
CPC分类号： H01S5/0683 , H01S5/06808
摘要： A semi-conductor laser device constant power output controller including a power input, a laser diode device consisted of a laser diode and a photoelectric diode, a current driver consisted of a first transistor and a second transistor, and an output control consisted of a zener diode and a variable resistor, whereby the electric current to the laser diode is controlled by the second transistor; the electric current to the second transistor is controlled by the first transistor; the photoelectric diode detects the laser beam of the laser diode for feedback reference; the zener diode and the variable resistor control the output power by means of controlling the electric current to the laser diode.
摘要翻译：一种半导体激光器件恒功率输出控制器，包括功率输入，由激光二极管和光电二极管组成的激光二极管器件，由第一晶体管和第二晶体管组成的电流驱动器，以及由齐纳二极管二极管和可变电阻器，由此通过第二晶体管控制到激光二极管的电流; 到第二晶体管的电流由第一晶体管控制; 光电二极管检测激光二极管的激光束用于反馈参考; 齐纳二极管和可变电阻器通过控制到激光二极管的电流来控制输出功率。

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