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41. 发明公开

EP1509977A4 TECHNIQUES FOR BIASING LASERS 有权
标题翻译：技术偏置激光器的
公开(公告)号：EP1509977A4
公开(公告)日：2005-08-17
申请号：EP03728529
申请日：2003-04-24
申请人： FINISAR CORP
发明人： HSIEH JOHN
IPC分类号： H01S5/042 , H01S5/062 , H01S5/068
CPC分类号： H01S5/06209 , H01S5/042 , H01S5/06812
摘要： A method of biasing a laser (108) that includes determining a threshold current (Ith) of a laser (108) and setting a bias current for the laser (108) as a factor of the threshold current (Ith).

42. 发明公开

EP1396912A3 Light emitting device drive circuit 有权
标题翻译： Treiberschaltungfüreinen Lichtemitter
公开(公告)号：EP1396912A3
公开(公告)日：2005-04-20
申请号：EP03019024.3
申请日：2003-08-21
申请人： Dainippon Screen Mfg. Co., Ltd.
发明人： Kurusu, Yasuo, Dainippon Screen Mfg. Co. Ltd.
IPC分类号： H01S5/042
CPC分类号： H01S5/042 , H01S5/0428
摘要： The present invention provides a light emitting device drive circuit which does not require complicated feedback control for shortening a rising response delay time in the transition from an extinction state of a light emitting device to a light emitting state so as not to increase a bias current, and for eliminating harmful effects due to the influence of a droop phenomenon. A circuit including a series of a coil (55) and a resistor (54) is connected in parallel with an LD (53). In this configuration, the LD (53) is subjected to supply of an overshoot drive current ILD for a time period determined by a time constant of the coil (55) and the resistor (54), i.e., a time period in which a high-frequency current is supplied in the transition from the extinction state to the light emitting state. Thus, a delay in rise time until light emission of the LD (53) can be decreased. The drive current ILD supplied to the LD (53) is increased in proportion to a decrease of a forward voltage V op supplied to the LD (53) due to temperature rise. Thus, even if the light emitting state continues for a long period of time, the intensity of light emission from the LD (53) can be kept constant.
摘要翻译：本发明提供一种发光装置驱动电路，其不需要复杂的反馈控制，以缩短从发光器件的消光状态向发光状态的转变中的上升响应延迟时间，以便不增加偏置电流，并且用于消除由于下垂现象的影响引起的有害影响。包括一系列线圈（55）和电阻（54）的电路与LD（53）并联连接。在这种结构中，LD（53）在由线圈（55）和电阻器（54）的时间常数确定的时间周期内供给过冲驱动电流ILD，即，高在从消光状态到发光状态的转变中提供频率电流。因此，可以减少直到LD（53）的发光的上升时间的延迟。提供给LD（53）的驱动电流ILD与由于温度升高而提供给LD（53）的正向电压Vop的减小成比例地增加。因此，即使发光状态持续长时间，也可以将来自LD（53）的发光强度保持恒定。

43. 发明公开

EP1313185A3 Temperature dependent constant-current generating circuit 审中-公开
标题翻译：电路用于依赖于温度的恒定电流源
公开(公告)号：EP1313185A3
公开(公告)日：2005-03-09
申请号：EP02022975.3
申请日：2002-10-14
申请人： Kabushiki Kaisha Toshiba
发明人： Kaminishi, Katsuji, Intellectual Property Division
IPC分类号： H01S5/042
CPC分类号： H01S5/042
摘要： A reference voltage generating circuit 1 is provided for generating the stable reference voltage Vref against a variation in a supply voltage and an ambient temperature changes. A stabilized voltage generating circuit 2 is provided for generating the stabilized voltage Vg based on the reference voltage Vref. A voltage dividing circuit 4 divides reference voltage Vref. An amplifier circuit 5 amplifies an output voltage of the voltage dividing circuit 4. A current mirror circuit 6 is provided for outputting a current in the opposite direction of the output current of the amplifier circuit 5. A current-voltage conversion resistor 3 is connected between the output terminal of the stabilized voltage generating circuit 2 and the output terminal of the current mirror circuit 6. A buffer amplifier 7 supplies a current feedback type output amplifier circuit 8 with a voltage generated by the resistor 3.

44. 发明授权

EP0809885B1 SCHALTUNGSANORDNUNG ZUR SPEISUNG EINER IMPULSENDSTUFE 失效
标题翻译：电路用于馈送推进阶段
公开(公告)号：EP0809885B1
公开(公告)日：2004-11-10
申请号：EP96941057.0
申请日：1996-12-02
申请人： Vectronix AG
发明人： RENZ, Norbert
IPC分类号： H03K3/57
CPC分类号： H03K3/57 , H01S5/042 , H01S5/0428 , H02M3/10
摘要： The invention relates to a circuit configuration for feeding a pulse output stage, which configuration has at least one capacitor (4) and one consumer, for example a diode laser (2), connected thereto. The capacitor (4) is connected to a voltage source (14) by way of a coil (10). The voltage of the voltage source (14) is applied to the coil (10) by way of a pulsed switchgear (1). The energy stored in the coil (10) is used to charge the capacitor (4) which is discharged by the same or another switchgear, a useful pulse being produced through the consumer (2).

45. 发明公开

EP1225668A3 Lasermodul 审中-公开
标题翻译：激光模块
公开(公告)号：EP1225668A3
公开(公告)日：2004-09-22
申请号：EP02001333.0
申请日：2002-01-18
申请人： Amtron GmbH
发明人： Aehling, Hubert, Dipl.-Ing.
IPC分类号： H01S5/022 , H01S5/042 , H01S5/40
CPC分类号： H01S5/02292 , H01S5/02423 , H01S5/042 , H01S5/0683 , H01S5/4025
摘要： Die Erfindung beschreibt ein Lasermodul mit mindestens einer Laserdiode mit kollimiertem Strahlaustritt, einer Einheit zur Strahlführung und Formung der von der Laserdiode abgegebenen Strahlung, einer Leistungselektronik zur direkten Ansteuerung der Laserdiode, mit einer Steuereinheit mit Interface zur Ansteuerung und Regelung der Laserdiode, sowie einem Gehäuse mit Wärmesenke für die Laserdiode, wobei an der Laserdiode ein Schaltregler integriert ist, der aus einer Zwischenkreisspannung von etwa 280-400V Gleichstrom die für die Diode erforderlichen 40-100A erzeugt und wobei die Zuführung der Energie über die Zwischenkreisspannung den Zuleitungsstrom auf ca. 0,5A absenkt.

46. 发明公开

EP1445843A1 Ansteuerschaltung und Verfahren zum Betreiben eines Halbleiterlasers 有权
标题翻译： Ansteuerschaltung und Verfahren zum Betreiben eined Halbleiterlasers
公开(公告)号：EP1445843A1
公开(公告)日：2004-08-11
申请号：EP03360020.6
申请日：2003-02-05
申请人： ALCATEL
发明人： Preisach, Helmut
IPC分类号： H01S5/042
CPC分类号： H01S5/042 , H01S5/183
摘要： Schaltung zur Ansteuerung eines Halbleiterlasers, insbesondere eines Vertical Cavitiy Surface Emitting Laser (VCSEL), die einen Differenzverstärker zur direkten Ansteuerung des Halbleiterlaser aufweist. Mittels des Differenzverstärkers wird der Halbleiterlaser differential angesteuert, wobei ein erster Ausgang des Differenzverstärkers mit einem ersten Anschluss des Halbleiterlaser gleichstromgekoppelt und ein zweiter Ausgang des Differenzverstärkers mit einem zweiten Anschluss des Halbleiterlaser wechselstromgekoppelt verbunden ist.
摘要翻译：驱动电路具有用于以差分方式直接驱动半导体激光器（1）的差分放大器（10），由此差动放大器的第一输出（A1）为直流电。耦合到所述半导体激光器的第一连接（1a），并且所述差分放大器的第二输出（A2）是直流。耦合到半导体激光器的第二连接（1b）。还包括以下独立权利要求：（a）操作本发明电路的方法。

47. 发明公开

EP1427076A1 SEMICONDUCTOR LASER OPTICAL OUTPUT CONTROL CIRCUIT AND OPTICAL DEVICE 有权
标题翻译：控制电路对半导体激光器和光器件的光输出
公开(公告)号：EP1427076A1
公开(公告)日：2004-06-09
申请号：EP02760720.9
申请日：2002-08-23
申请人： Sony Corporation
发明人： SATO, Katsunori c/o SONY CORPORATION , YUWAKI, Takeshi c/o SONY SEMICONDUCTOR KYUSHU CORP
IPC分类号： H01S5/0683 , G11B7/125
CPC分类号： G11B7/1263 , G11B7/00736 , G11B7/1267 , G11B11/10595 , H01S5/042 , H01S5/0683 , H01S5/06832
摘要： A semiconductor laser optical output control circuit able to precisely control an optical output of a semiconductor laser, provided with a peak value detection circuit 106-1 and a bottom value detection circuit 107-1 for detecting the output of a photo-diode PD 102, optical power setting voltage sources 105-1 and 105-2 for giving the setting value of the optical output of a semiconductor laser LD 101, a peak value detection circuit 106-2 and a bottom value detection circuit 107-2 for detecting the output of a switching circuit 104 for switching the setting value, error amplifiers 108-1 and 108-2 for comparing the detected outputs of the peak value detection circuit 106-1 and peak value detection circuit 106-2 and the bottom value detection circuit 107-1 and bottom value detection circuit 107-2, and a switching circuit 110 for switching the comparison results of the error amplifiers 108-1 and 108-2 and supplying the same to a current amplifier 111 in synchronization with the switching circuit 104.
摘要翻译：一种半导体激光器的光输出控制电路能够将半导体激光器的光输出，提供有峰值检测电路106-1和用于检测光电二极管PD 102的输出一个底部值检测电路107-1的精确控制光功率的设定电压源105-1和105-2用于给出一个半导体激光器LD 101，峰值检测电路106-2和用于检测的输出的底部值检测电路107-2的光输出的设定值一切换电路104，用于切换设定值时，误差放大器108-1,108-2，用于比较峰值检测电路106-1和峰值检测电路106-2和底值检测电路的检测到的输出107-1 和底值检测电路107-2，以及用于同步于切换ç切换误差放大器108-1,108-2的比较结果和提供相同的电流放大器111的开关电路110 ircuit 104.

48. 发明公开

EP1425831A2 INTEGRIERTER SCHALTKREIS ZUR ANSTEUERUNG EINER LASERDIODE 有权
标题翻译：集成电路，用于控制激光二极管
公开(公告)号：EP1425831A2
公开(公告)日：2004-06-09
申请号：EP01274582.4
申请日：2001-11-21
申请人： Infineon Technologies AG
发明人： SCHRÖDINGER, Karl , OHEIM, Toralf
IPC分类号： H01S5/042
CPC分类号： H01S5/042 , H01S5/0427
摘要： The invention relates to an integrated circuit for controlling a laser diode, comprising a signal input for receiving a data signal; a signal output for connection to the laser diode; a modulator for modulation of the data signal; a current infeed connected to the signal output for the supply of a bias current; a coupling capacitor between the output of the modulator and the signal output in order to form a high pass with the differential resistor of the laser diode. Preferably, the circuit also comprises an active compensation circuit with a low pass connected to the output of the modulator; and a circuit which is connected to the low pass for producing a signal which is inversely proportional to the low pass output voltage and which is added to the output signal or subtracted from the output signal. The low pass can be controlled by a circuit guiding the data signal.

49. 发明公开

EP1413025A2 OPTICAL FREQUENCY SYNTHESIZER 审中-公开
标题翻译：光学频率合成器
公开(公告)号：EP1413025A2
公开(公告)日：2004-04-28
申请号：EP02735603.9
申请日：2002-06-06
申请人： University College London
发明人： DA SILVA, Claudio, Fernandes, Castanheira , SEEDS, Alwyn
IPC分类号： H01S5/0687 , H01S5/40
CPC分类号： H04B10/572 , H01S5/042 , H01S5/0623 , H01S5/0687 , H01S5/4006 , H01S5/4087
摘要： Laser frequency locking apparatus (5), comprising: a slave laser (15), having associated with it means (14, 18) for coupling and/or means (118, 25) for coupling and propagating signals received and emitted; a phase lock loop (24); and a controller (16), operable to control the slave laser, wherein an output of a reference signal source (1) associated with a master source (2, 3), and receivable therefrom, is utilised in the phase lock loop to render the output frequency of the slave laser the same as an output frequency of the master source. The invention described relates to a technique for generating a set of highly stable optical frequency channels. There are provided methods and systems of locking laser frequencies and of synthesizing frequencies.

50. 发明公开

EP1396912A2 Light emitting device drive circuit 有权
标题翻译：对于光发射器驱动器电路
公开(公告)号：EP1396912A2
公开(公告)日：2004-03-10
申请号：EP03019024.3
申请日：2003-08-21
申请人： Dainippon Screen Mfg. Co., Ltd.
发明人： Kurusu, Yasuo, Dainippon Screen Mfg. Co. Ltd.
IPC分类号： H01S5/042
CPC分类号： H01S5/042 , H01S5/0428
摘要： The present invention provides a light emitting device drive circuit which does not require complicated feedback control for shortening a rising response delay time in the transition from an extinction state of a light emitting device to a light emitting state so as not to increase a bias current, and for eliminating harmful effects due to the influence of a droop phenomenon. A circuit including a series of a coil (55) and a resistor (54) is connected in parallel with an LD (53). In this configuration, the LD (53) is subjected to supply of an overshoot drive current ILD for a time period determined by a time constant of the coil (55) and the resistor (54), i.e., a time period in which a high-frequency current is supplied in the transition from the extinction state to the light emitting state. Thus, a delay in rise time until light emission of the LD (53) can be decreased. The drive current ILD supplied to the LD (53) is increased in proportion to a decrease of a forward voltage V op supplied to the LD (53) due to temperature rise. Thus, even if the light emitting state continues for a long period of time, the intensity of light emission from the LD (53) can be kept constant.

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