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2. 发明专利

JP5338234B2 Short-pulse light source, laser light emission method, optical device, optical disk device and an optical pickup 有权
标题翻译：空值
公开(公告)号：JP5338234B2
公开(公告)日：2013-11-13
申请号：JP2008255022
申请日：2008-09-30
申请人：ソニー株式会社
发明人：努石本 , 和彦藤家
IPC分类号： G11B7/1263 , G11B7/1267 , H01S3/10 , H01S5/062
CPC分类号： H01S5/06216 , B82Y10/00 , G11B7/00736 , G11B7/127 , G11B7/1275 , G11B7/247 , G11B7/248 , G11B2007/24606 , H01S5/06835
摘要： Directed to freely adjusting an emission period of a semiconductor laser. In the present invention, pulsed light serving as pulse-shaped laser light (LL) is emitted from a semiconductor laser (3), and a laser drive voltage (DJ) that is generated on the basis of a pulse signal (SL) and that has pulse-shaped drive voltage pulses (DJw) is applied to the semiconductor laser (3). At this time, a short-pulse light source (51) varies a voltage period (TV) corresponding to an interval between the drive voltage pulses (DJw), thereby varying a set period (TS) corresponding to an interval between generated signal pulses (SLw) in the pulse signal (SL).
摘要翻译：用于自由调节半导体激光器的发射周期。在本发明中，从半导体激光器（3）和基于脉冲信号（SL）生成的激光驱动电压（DJ）发射用作脉冲激光（LL）的脉冲光，并且基于脉冲信号（SL）产生的激光驱动电压（DJ）脉冲驱动电压脉冲（DJw）被施加到半导体激光器（3）。此时，短脉冲光源（51）改变与驱动电压脉冲（DJw）之间的间隔对应的电压周期（TV），从而改变对应于所生成的信号脉冲之间的间隔的设定周期（TS） SLw）在脉冲信号（SL）中。

3. 发明专利

JP5120321B2 Laser driving device, laser driving method, the optical unit, the optical equipment 有权
标题翻译：空值
公开(公告)号：JP5120321B2
公开(公告)日：2013-01-16
申请号：JP2009094634
申请日：2009-04-09
申请人：ソニー株式会社
发明人：努栗原 , 基木村 , 浩一横山
IPC分类号： G11B7/1263 , G11B7/0045 , G11B7/1267
CPC分类号： G11B7/0062 , G11B7/1263 , H01S5/0428 , H01S5/06835

4. 发明专利

JP4240122B2 Light source device and a control method thereof, a lighting device, a monitor device, and image display device 有权
公开(公告)号：JP4240122B2
公开(公告)日：2009-03-18
申请号：JP2007012274
申请日：2007-01-23
申请人：セイコーエプソン株式会社
发明人：俊司上島
IPC分类号： H01S5/06 , G02F1/37 , G03B21/14
CPC分类号： H04N9/3129 , H01S3/0805 , H01S3/109 , H01S5/0617 , H01S5/06804 , H01S5/06835 , H01S5/14 , H01S5/4062 , H04N9/3161 , H04N9/3194
摘要： A light source device includes a light source for emitting a laser beam, a power supply drive circuit for pulse-driving the laser beam, a wavelength conversion element for converting a wavelength of a laser beam into a predetermined wavelength, a photodetector for detecting an intensity of the laser beam emitted from the wavelength conversion element, and a control section that controls a drive condition of the laser beam emitted from the wavelength conversion element based on the intensity detected by the photodetector, wherein the control section includes an optimization setting section that, in response to the intensity of the photodetector in a present pulse drive condition being outside a predetermined range, controls a drive condition of the laser beam to extract an optimum pulse drive condition, and sets the extracted optimum pulse drive condition to the drive condition of the laser beam instead of the present pulse drive condition, and the optimization setting section, in extracting the optimum drive condition, restores the present pulse drive condition in a predetermined period of time after replacing the present pulse drive condition with a predetermined pulse drive condition for extracting the optimum pulse drive condition.

5. 发明专利

JP3784485B2 Output pulse width control system 失效
公开(公告)号：JP3784485B2
公开(公告)日：2006-06-14
申请号：JP2790197
申请日：1997-02-12
申请人：富士通株式会社
发明人：和義清水
IPC分类号： H03K5/04 , H01S5/068 , H01S5/0683
CPC分类号： H01S5/06835 , H01S5/06821 , H01S5/06832

6. 发明专利

JP3772650B2 Mode-locked semiconductor laser driving method and apparatus 有权
公开(公告)号：JP3772650B2
公开(公告)日：2006-05-10
申请号：JP2000212510
申请日：2000-07-13
申请人：日本電気株式会社
发明人：一郎小倉
IPC分类号： H01S5/065 , H01S5/06 , H01S5/0625 , H01S5/0683
CPC分类号： H01S5/06255 , H01S5/0601 , H01S5/06256 , H01S5/0657 , H01S5/0683 , H01S5/06835

7. 发明专利

JP3362911B2 Laser recorder 失效
公开(公告)号：JP3362911B2
公开(公告)日：2003-01-07
申请号：JP12101793
申请日：1993-05-24
申请人：ゼロックス・コーポレーション
发明人：エヌ．カリーダグラス , エル．ソーントンロバート
IPC分类号： B41J2/52 , B41J2/44 , H01S5/00 , H01S5/026 , H01S5/0683 , H04N1/40 , H04N1/405
CPC分类号： H04N1/40043 , H01S5/06835 , H04N1/40037 , H04N1/4005 , H04N1/4056

8. 发明专利

JPS59175779A Automatic photoelectric power control circuit 失效
标题翻译：自动光电功率控制电路
公开(公告)号：JPS59175779A
公开(公告)日：1984-10-04
申请号：JP5122283
申请日：1983-03-26
申请人： Nec Corp
发明人： HAYASHIDA FUJIO
IPC分类号： H01S5/068 , H01S5/0683 , H01S3/096
CPC分类号： H01S5/06804 , H01S5/06835
摘要： PURPOSE:To reduce the time required for rising as well as to obtain the stable photoelectric output power by the photoelectric power control circuit comprising small open-loop gain by newly providing a laser threshold current temperature characteristics compensation circuit in addition to an usual automatic photoelectric power constrol circuit. CONSTITUTION:Part of the outut light from a semiconductor laser 11 is received by a photodiode 12 to be converted into electric signals which are inputted into a comparison circuit 15 in which a reference voltage 14 is inputted, through a low-pass filter 13 for levelling outputs. Next, this comparison output is sent to a laser current control circuit 16 and is added to the laser 11. Also, transmission signals from an input terminal 21 is supplied to the laser 11 through a coupling capacitor 22 and a voltage-current converting circuit 23. In this constitution, the newly added laser treshold current temperature characteristics compensation circuit 17 is connected to the contact of the circuits 15 and 16, thereby reducing an open-loop gain of the photoelectric power control circuit for obtaining the predetermined follow-up properties of the photoelectric output power.
摘要翻译：目的：通过新增提供激光阈值电流温度特性补偿电路，除通常的自动光电功率外，通过包括小开环增益的光电功率控制电路，减少上升所需的时间以及获得稳定的光电输出功率恒电路。构成：来自半导体激光器11的一部分光通过光电二极管12接收，以转换成电信号，该电信号通过低通滤波器13被输入到输入参考电压14的比较电路15中，输出。接下来，将该比较输出发送到激光电流控制电路16并加到激光器11.此外，来自输入端子21的发送信号通过耦合电容器22和电压电流转换电路23提供给激光器11 在这种结构中，新添加的激光阈值电流温度特性补偿电路17连接到电路15和16的触点，从而降低光电功率控制电路的开环增益，以获得预定的后续特性光电输出功率。

9. 发明专利

JPS59172285A Drive system of laser-diode 失效
标题翻译：激光二极管驱动系统
公开(公告)号：JPS59172285A
公开(公告)日：1984-09-28
申请号：JP4539383
申请日：1983-03-18
申请人： Fujitsu Ltd
发明人： IFUKURO SADAO , GOTOU MASAYUKI
IPC分类号： H03K17/00 , H01S5/068 , H01S5/0683
CPC分类号： H01S5/06835
摘要： PURPOSE:To obtain a drive system suitable on an employment to a laser-diode, both oscillation threshold and differential efficiency thereof change by a temperature, such as a buried type LD by varying pulse currents and bias currents at an approximately the same ratio by two control circuits in response to outputs from a light-receiving element. CONSTITUTION:A data and a clock are inputted to a flip-flop 1, and wave- shaped and applied to a current amplification circuit 2A and a bias control circuit 5. The magnitude of pulse currents as an output from the control circuit 2A and bias currents as an output from a bias circuit 6 are controlled by the bias control circuit, and both pulse currents and bias currents are applied to a laser- diode 3. One part of an optical output from the laser-diode 3 is received by a photo-diode 4, and an output from the photo-diode is inputted to the bias control circuit 5. The bias control circuit 5 varies pulse currents and bias currents at the same ratio according to the output from the photo-diode.
摘要翻译：目的：为了获得适用于激光二极管的驱动系统，振荡阈值和微分效率两者之间的温度变化如掩埋型LD，脉冲电流和偏置电流大致相同，两者之比为2 响应于来自光接收元件的输出的控制电路。构成：将数据和时钟输入到触发器1，并且形成波形并施加到电流放大电路2A和偏置控制电路5.作为来自控制电路2A的输出的脉冲电流的大小和偏置作为来自偏置电路6的输出的电流由偏置控制电路控制，并且脉冲电流和偏置电流都被施加到激光二极管3.来自激光二极管3的光输出的一部分由照片二极管4，并且来自光电二极管的输出被输入到偏置控制电路5.偏置控制电路5根据光电二极管的输出以相同的比率改变脉冲电流和偏置电流。

10. 发明专利

JPS5714587B2 JPS5714587B2 - 失效
公开(公告)号：JPS5714587B2
公开(公告)日：1982-03-25
申请号：JP15095676
申请日：1976-12-17
IPC分类号： H01S3/134 , H01S5/0683
CPC分类号： H01S5/06835

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