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1. 发明申请

WO1994015388A1 APPARATUS FOR STABILIZING WAVELENGTH 审中-公开
标题翻译：用于稳定波长的装置
公开(公告)号：WO1994015388A1
公开(公告)日：1994-07-07
申请号：PCT/JP1993001824
申请日：1993-12-16
申请人： OLYMPUS OPTICAL CO., LTD. , EDA, Yukio , FUJIMOTO, Hirohisa , HISATA, Nahoko , YUKAWA, Hiroshi
发明人： OLYMPUS OPTICAL CO., LTD.
IPC分类号： H01S03/133
CPC分类号： H01S5/0687 , H01S5/02415 , H01S5/06837
摘要： The apparatus comprises a controller (113) for supplying a constant injection current: a semiconductor laser (LD) (112) which is supplied with the injection current and outputs a laser beam; an etalon (114) for passing specific wavelength of the laser beam output from this semiconductor laser; a photodetector (PD) (116) for measuring the intensity of the beam output from the etalon; and a controller (117) which controls the temperature of the LD at first so that the output of the PD is maintained at a given value, stores the temperature of the LD when the output of the PD is maintained at the given value, and controls the temperature of the LD on the basis of the last stored temperature.
摘要翻译：该装置包括用于提供恒定注入电流的控制器（113）：被提供有注入电流并输出激光束的半导体激光器（LD）（112）用于通过从该半导体激光器输出的激光束的特定波长的标准具（114）用于测量从标准具输出的光束的强度的光电检测器（PD）（116）; 以及控制器（117），其首先控制LD的温度使得PD的输出保持在给定值，当PD的输出保持在给定值时存储LD的温度，并且控制基于最后存储温度的LD的温度。

2. 发明申请

WO1997001202A1 LASER DRIVE CIRCUIT 审中-公开
标题翻译：激光驱动电路
公开(公告)号：WO1997001202A1
公开(公告)日：1997-01-09
申请号：PCT/GB1996001474
申请日：1996-06-20
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY , WALKER, Stuart, Douglas
发明人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
IPC分类号： H01S03/133
CPC分类号： H01S5/06832
摘要： A laser diode (1) is driven by a first, integrating, amplifier (5) receiving a d.c. reference voltage Vref, input data Vin, and negative feedback from a back-facet photodiode (2), and by a second, wideband, amplifier receiving the data and the negative feedback.
摘要翻译：激光二极管（1）由接收直流电压的第一集成放大器（5）驱动。参考电压Vref，输入数据Vin和来自背面光电二极管（2）的负反馈，以及接收数据和负反馈的第二宽带放大器。

3. 发明申请

WO1996025781A1 PROCESS AND CIRCUIT ARRANGEMENT FOR REGULATING THE LUMINOUS POWER OF LASER DIODES 审中-公开
标题翻译：方法和电路，用于控制激光二极管的光功率
公开(公告)号：WO1996025781A1
公开(公告)日：1996-08-22
申请号：PCT/DE1996000122
申请日：1996-01-30
申请人： LINOTYPE-HELL AG , OFENLOCH, Thomas, Philipp, Jakob , HOFMANN, Klaus
发明人： LINOTYPE-HELL AG
IPC分类号： H01S03/133
CPC分类号： H04N1/40037 , H01S5/06812 , H01S5/06832 , H01S5/06835 , H04N1/036
摘要： A process and circuit arrangement are disclosed for regulating the luminous power of a laser diode in an optoelectronic point-by-point or line recording device for recording information on a recording material. A deviation ( DELTA l) is determined by comparing a luminous power set value to a measured luminous power real value. A fast regulator (2) generates a regulating current (IR) based on the deviation ( DELTA l). A slow regulator (3) with storage capabilities generates a working point regulating current (IA) that determines the working point on a laser diode characteristic curve and that is added to the regulating current (IR) to give the driving current (IT) of the laser diode (1). The luminous power set value and the slow regulator (3) are used during the switching-on periods of the laser diodes (1) at the beginning of the recording periods and during preliminary periods that precede the recording periods. The working point regulating current (IA) corrects the working point of the laser diode (1) during the preliminary periods and is kept constant during the subsequent recording periods. Oscillations of the luminous power (P) that may occur during the recording periods are only regulated by the fast regulator (2).
摘要翻译：本发明涉及一种方法和一种通过信息记录线在记录材料上调节激光二极管的光功率中的光电记录设备，用于点和线的电路布置。通过光功率目标值与测量的L比较也许实际电力值，偏差（DELTA I）被确定。快速控制器（2）上的控制偏差（DELTA I）的调节器电流（IR）的依赖性产生。较慢的控制器（3）具有存储行为产生在激光二极管特性的工作点来确定工作电流（IA），其被添加到调节器电流（IR）的驱动电流（IT）的激光二极管（1）至接收。在电源接通的记录内的激光二极管（1）的间隔，并在所有INTERV躺在在每种情况下的记录间隔Vorintervallen的光功率设定值和缓慢调节器（3）导通之前。工作电流（IA）校正Vorintervalle内的激光二极管（1）的工作点，并在随后的记录间隔被保持恒定在每种情况下。在记录间隔可能出现在光功率（P）（2）是由速度控制器仅补偿的变化。

4. 发明申请

WO1996009667A1 METHOD OF TEMPERATURE COMPENSATION FOR OPTO-ELECTRONIC COMPONENTS, MORE SPECIFICALLY OPTO-ELECTRONIC SEMICONDUCTORS 审中-公开
标题翻译：方法OPTO电子元件的温度补偿，特别是光电半导体
公开(公告)号：WO1996009667A1
公开(公告)日：1996-03-28
申请号：PCT/EP1995003784
申请日：1995-09-24
申请人： BYK-GARDNER GMBH , SPERLING, Uwe
发明人： BYK-GARDNER GMBH
IPC分类号： H01S03/133
CPC分类号： G01J1/42 , H01L33/0095
摘要： The proposed method of temperature compensation for opto-electronic components, more specifically opto-electronic semiconductors, involves operation of the component under pre-determined constant conditions and measurement of a first, temperature-dependent characteristic value which is then compared with a comparison value determined under identical constant conditions but at a different temperature. A correction function is derived from the relationship between the characteristic value and the comparison value and used to correct the measured value obtained from the semiconductor component so as to compensate for the effect of temperature.
摘要翻译：一种用于电光器件，特别是电光学半导体的温度补偿，其特征在于，给定的恒定条件下，设备操作，并且第一特性值被测量，这取决于温度，和该特性值的方法与比较值，其是相同的恒定条件下进行比较，但在不同温度下被确定。从该参数和该比较值之间的关系，校正功能是由与半导体器件测量检测进行校正，使得温度效应进行补偿的。

5. 发明申请

WO1992011672A1 DEVICE FOR STABILIZING A LASER LIGHT SOURCE 审中-公开
标题翻译：用于稳定激光光源的装置
公开(公告)号：WO1992011672A1
公开(公告)日：1992-07-09
申请号：PCT/AT1991000135
申请日：1991-12-18
申请人： TABARELLI, Werner , TELLE, Harald
发明人： TABARELLI, Werner
IPC分类号： H01S03/133
CPC分类号： H01S5/0687 , H01S3/1398 , H01S5/065
摘要： Proposed is a laser light source stabilization device in which the light intensity in the laser resonator changes the resonator's optical path length. The device is particularly suitable for the stabilization of a laser diode (ID). It includes an external resonator (M1, M2, M3), located outside the laser resonator, for the frequency-selective feedback of light from the laser light source (LD) to the laser resonator. Also included is a first control device for the control of at least one parameter affecting the emission frequency of the freely running laser light source (LD) (the injection current in a laser diode). The device further includes a control device for the control of the phase relationship of the light fed back by the external resonator to the laser resonator (feedback phase) relative to the phase of the light in the laser resonator, plus a modulation device for the modulation of a parameter affecting the emission frequency of the free-running laser light source (the injection current in a laser diode). In order to obtain an independent control signal for the control of the feedback phase, the invention calls for a detector (PD1, AMP2, FI1, DBM2, PS2, FD) for the detection, in the light emitted by the laser light source, of a modulation with twice the frequency (2fmod), the detector feeding to the control device (PMG, LIA INT1, PZT2,3) a control signal dependent on the amplitude of this modulation for control of the feedback phase.
摘要翻译：提出了激光光源稳定装置，其中激光谐振器中的光强度改变了谐振器的光程长度。该器件特别适用于稳定激光二极管（ID）。它包括位于激光谐振器外部的外部谐振器（M1，M2，M3），用于从激光光源（LD）到激光谐振器的频率选择反馈。还包括用于控制影响自由运行的激光光源（LD）的发射频率（激光二极管中的注入电流）的至少一个参数的第一控制装置。该装置还包括控制装置，用于控制由外部谐振器反馈的光与激光谐振器相对于激光谐振器中的光的相位的相位关系（反馈相位），以及用于调制的调制装置影响自由运行的激光光源的发射频率（激光二极管中的注入电流）的参数。为了获得用于控制反馈相位的独立控制信号，本发明要求一种检测器（PD1，AMP2，FI1，DBM2，PS2，FD），用于在由激光光源发出的光中进行检测具有两倍频率（2fmod）的调制，检测器根据该调制的幅度向控制装置（PMG，LIA INT1，PZT2,3）馈送控制信号以控制反馈相位。

6. 发明申请

WO1992003861A1 PROCESS AND CIRCUIT FOR CORRECTING THE LIGHT-POWER OUTPUT OF A LASER DIODE 审中-公开
标题翻译：用于校正激光二极管的光功率输出的过程和电路
公开(公告)号：WO1992003861A1
公开(公告)日：1992-03-05
申请号：PCT/DE1991000641
申请日：1991-08-10
申请人： LINOTYPE-HELL AG , ZELENKA, Thomas , JACOBSEN, Thomas , ASBACH, Dietrich
发明人： LINOTYPE-HELL AG
IPC分类号： H01S03/133
CPC分类号： H04B10/504 , H01S5/06209 , H01S5/06216 , H01S5/068 , H04B10/564
摘要： The invention concerns a process and circuit for correcting the light-power output of a laser diode. The circuit comprises a generator (2) for generating a driver current (IT) which determines the light-power output of the laser diode (1). The driver current (IT) is modulated by a modulation signal (B). To correct the light-power output, the circuit includes a linear low-pass filter (5) which is acted on by the modulation signal (B) and which approximately simulates the change with time of the internal temperature of the laser diode (1) as a function of the modulation signal (B). The output signal of the linear low-pass filter (5) acts as a driver-current (IT) correction signal (K), thus compensating for the temperature dependence of the laser-diode light-power output.

7. 发明申请

WO1990003054A1 WAVELENGTH STABILIZED SOURCE OF LIGHT 审中-公开
标题翻译：波长稳定的光源
公开(公告)号：WO1990003054A1
公开(公告)日：1990-03-22
申请号：PCT/JP1989000899
申请日：1989-09-01
申请人： FUJITSU LIMITED , CHIBA, Kazuharu , NAKAJIMA, Yoshifumi , SUMIYOSHI, Hideo
发明人： FUJITSU LIMITED
IPC分类号： H01S03/133
CPC分类号： H04B10/503 , G02F1/37 , H01S5/0687 , H04B10/572
摘要： A wavelength stabilized source of light has a laser diode (101) which emits a laser beam having a wavelength of 1.56 νm. Double harmonic generating means (105) generates double harmonic light of the laser beam. The double harmonic light enters to a resonator (102) having 87Rb atoms. The resonator (102) is irradiated with microwaves whose phase is modulated. The resonator (102) forms double resonance signals when the wavelength of the double harmonic light is equal to the resonance wavelength of 87Rb and when the frequency of the microwaves is equal to the transition frequency of 87Rb. A first control circuit (103) so controls the microwaves that the frequency of the microwaves will become equal to the transition frequency. A second control circuit (104) so controls the laser diode (101) that the wavelength of the double harmonic light will become equal to the resonance wavelength of 87Rb. Therefore, the laser beam that is generated has a stable wavelength of 1.56 νm.

8. 发明申请

WO1997007577A1 LASER WAVELENGTH CONTROL SYSTEM 审中-公开
标题翻译：激光波长控制系统
公开(公告)号：WO1997007577A1
公开(公告)日：1997-02-27
申请号：PCT/SE1996001021
申请日：1996-08-16
申请人： TELEFONAKTIEBOLAGET LM ERICSSON
发明人： TELEFONAKTIEBOLAGET LM ERICSSON , LAGERSTRÖM, Bo
IPC分类号： H01S03/133
CPC分类号： H01S5/0687 , H01S3/1392 , H01S5/06837
摘要： A laser wavelength control system (20) stabilizes laser output wavelength. The control system includes a reflector/filter device (40) upon which laser radiation is incident for yielding both a filtered-transmitted signal (FS) and a reflected signal (RS). A controller (45) uses both the filtered-transmitted signal (FS) and the reflected signal (RS) to generate a control signal (CS). The control signal is utilized by a temperature converter (100) to adjust laser output wavelength of the laser (22). In one embodiment, the reflector/filter device is an optical fiber grating. The wavelength control system facilitates construction of a modular optical multichannel transmission system (200).
摘要翻译：激光波长控制系统（20）稳定激光输出波长。控制系统包括反射器/滤光器装置（40），在该反射器/滤光器装置（40）上激发辐射入射以产生经滤波的发射信号（FS）和反射信号（RS）。控制器（45）同时使用滤波发射信号（FS）和反射信号（RS）来产生控制信号（CS）。控制信号由温度转换器（100）利用来调节激光器（22）的激光输出波长。在一个实施例中，反射器/滤光器装置是光纤光栅。波长控制系统有利于构建模块化光学多通道传输系统（200）。

9. 发明申请

WO1997001203A1 TEMPERATURE CORRECTION CIRCUIT FOR WAVELENGTH STABILIZATION IN A LASER DIODE 审中-公开
标题翻译：激光二极管波长稳定的温度校正电路
公开(公告)号：WO1997001203A1
公开(公告)日：1997-01-09
申请号：PCT/US1996010605
申请日：1996-06-19
申请人： COHERENT, INC. , LOFTHOUSE-ZEIS, Jay, T. , JOHNSON, John, K.
发明人： COHERENT, INC.
IPC分类号： H01S03/133
CPC分类号： H01S5/0683 , H01S3/109 , H01S5/02415 , H01S5/0612 , H01S5/0622 , H01S5/06808 , H01S5/06837 , H01S5/14
摘要： Laser diode circuitry that controls the laser diode temperature as a function of laser diode current. Changes in the spectral output of the laser diode directly caused by adjustments to the operating current of the laser diode are offset by corresponding changes in the diode temperature. Diode temperature regulation circuitry automatically changes the diode temperature by monitoring the diode operating current. Alternately, when the diode current is adjusted to intentionally shift the spectral output of the diode, for example to maintain a frequency match to an external cavity resonance, the temperature regulation circuitry automatically changes the diode temperature to induce an additional spectral shift in the same direction, thereby inducing a current adjustment in the opposite direction that prevents large excursions in the amplitude of the operating current of the diode.
摘要翻译：激光二极管电路，用于控制激光二极管温度作为激光二极管电流的函数。直接由激光二极管的工作电流的调整引起的激光二极管的光谱输出的变化被二极管温度的相应变化所抵消。二极管温度调节电路通过监测二极管工作电流自动改变二极管温度。或者，当二极管电流被调整为有意地移动二极管的频谱输出时，例如为了保持与外部腔共振的频率匹配，温度调节电路自动改变二极管温度以在相同方向上引起额外的频谱移位从而在相反方向引起电流调节，从而防止二极管工作电流幅度的大偏移。

10. 发明申请

WO1993011589A1 WAVELENGTH STABILIZATION 审中-公开
标题翻译：波长稳定
公开(公告)号：WO1993011589A1
公开(公告)日：1993-06-10
申请号：PCT/US1992010593
申请日：1992-12-04
申请人： HONEYWELL INC.
发明人： HONEYWELL INC. , LASKOSKIE, Clarence, E. , ANJAN, Yellapu
IPC分类号： H01S03/133
CPC分类号： H01S5/0687
摘要： An optical source (11) emits a source optical signal (12) having a source optical signal power and a wavelength. A splitter (14) or other similar device splits the source optical signal into a first optical signal (15) having a first optical signal power and into a second optical signal (17) having a second optical signal power such that the source optical signal power is split between the first optical signal power and the second optical signal power. This split is dependent upon the wavelength of the source optical signal (11). A first detector (21) detects the first optical signal power and a second detector (22) detects the second optical signal power. A controller (25) responds to the first (21) and second (22) detectors in order to control the wavelength of the source optical signal (11).
摘要翻译：光源（11）发射具有源光信号功率和波长的源光信号（12）。分离器（14）或其它类似设备将源光信号分离成具有第一光信号功率的第一光信号（15）并分成具有第二光信号功率的第二光信号（17），使得源光信号功率在第一光信号功率和第二光信号功率之间分配。该分割取决于源光信号（11）的波长。第一检测器（21）检测第一光信号功率，第二检测器（22）检测第二光信号功率。为了控制源光信号（11）的波长，控制器（25）响应于第一检测器（21）和第二检测器（22）。

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