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1. 发明授权

US06590914B1 Semiconductor laser drive circuit 失效
标题翻译：半导体激光驱动电路
公开(公告)号：US06590914B1
公开(公告)日：2003-07-08
申请号：US09611605
申请日：2000-07-07
申请人： Hironobu Tanase , Isao Ichimura
发明人： Hironobu Tanase , Isao Ichimura
IPC分类号： H01S5042
CPC分类号： H01S5/042 , H01S5/32341
摘要： A semiconductor laser drive circuit capable of improving a driving speed of a high resistance semiconductor laser such as a GaN-based semiconductor laser, comprising a buffer circuit for shaping waveforms of input signals, a level-shift circuit for shifting the levels of output signals of the buffer circuit, a switch circuit for controlling and outputting signal levels of output signals of the level-shift circuit based on switch control signals, a combining circuit for combining output signals of the switch circuit, and a source follower for supplying power to a high resistance semiconductor laser based on an output signal of the combining circuit. The high resistance semiconductor laser is for example a GaN-based semiconductor laser for emitting blue-violet laser light.
摘要翻译：一种能够提高诸如GaN基半导体激光器的高电阻半导体激光器的驱动速度的半导体激光器驱动电路，包括用于整形输入信号的波形的缓冲电路，用于使输出信号的输出信号的电平移位的电平移位电路缓冲电路，用于基于开关控制信号控制和输出电平移位电路的输出信号的信号电平的开关电路，用于组合开关电路的输出信号的组合电路和用于向高电平供电的源极跟随器基于组合电路的输出信号的电阻半导体激光器。高电阻半导体激光器例如是用于发射蓝紫色激光的GaN基半导体激光器。

2. 发明授权

US06618406B1 Optical semiconductor diode driver circuit and optical tranceiver module 失效
标题翻译：光半导体二极管驱动电路和光收发器模块
公开(公告)号：US06618406B1
公开(公告)日：2003-09-09
申请号：US09340378
申请日：1999-06-28
申请人： Katsuji Kaminishi
发明人： Katsuji Kaminishi
IPC分类号： H01S5042
CPC分类号： H01S5/042 , H01S5/0428
摘要： An optical semiconductor diode driver circuit, which is stably operable even with the supply of a source voltage slightly higher than the forward operation voltage of an optical semiconductor diode to be driven and can output switch current and voltage sufficient for driving the optical semiconductor diode, includes a pre-driver circuit operating as a limiting amplifier, and an output circuit responsive to a pulse-shaped voltage output from the pre-driver circuit and outputting a drive pulse current to the optical semiconductor diode as an external load. The output circuit is basically a type of the emitter-coupled amplifier which has either a differential configuration or a similar one to a Schmitt circuit and whose common-emitter loads are composed of a resistor and a variable constant current source to determine a amplitude of the output current pulse with small rise and fall times. Since a variable constant current source is added, the circuit alleviates influences from variations of the impedance of the load and the operating environment without any degradation of high frequency characteristics.
摘要翻译：一种光半导体二极管驱动电路，其即使在提供稍高于要驱动的光半导体二极管的正向工作电压的源极电压的情况下也可稳定地工作，并且可以输出足以驱动光半导体二极管的开关电流和电压，作为限幅放大器工作的预驱动电路，以及响应于从预驱动器电路输出的脉冲状电压并将驱动脉冲电流作为外部负载输出到光半导体二极管的输出电路。输出电路基本上是发射极耦合放大器的一种类型，其具有与施密特电路的差分配置或类似的发射极耦合放大器，其共发射极负载由电阻器和可变恒流源组成，以确定输出电流脉冲，上升和下降时间小。由于增加了可变的恒流源，所以该电路减轻了负载的阻抗和操作环境变化的影响，而没有高频特性的任何劣化。

3. 发明授权

US06765942B2 Optoelectronic circuit and control circuit 失效
标题翻译：光电路和控制电路
公开(公告)号：US06765942B2
公开(公告)日：2004-07-20
申请号：US10154906
申请日：2002-05-28
申请人： Guy James Robertson
发明人： Guy James Robertson
IPC分类号： H01S5042
CPC分类号： H04B10/504 , H01S5/042 , H01S5/40
摘要： To drive a single-mode laser device using a differential-pair output stage, collector terminals of transistors forming the differential-pair must be maintained at a predetermined potential. Since the potential dropped across the laser device is only about 1V, a Schottky diode connected between a cathode of the laser device and a second supply rail raises the cathode about 0.5V above the voltage of the second supply rail.
摘要翻译：为了使用差分对输出级驱动单模激光器件，必须将形成差分对的晶体管的集电极端子保持在预定电位。由于激光器件下降的电位仅为约1V，连接在激光器件的阴极和第二电源轨之间的肖特基二极管使阴极比第二电源轨的电压高0.5V。

4. 发明授权

US06618407B1 Uncooled universal laser module 有权
标题翻译：未冷却通用激光模块
公开(公告)号：US06618407B1
公开(公告)日：2003-09-09
申请号：US09141143
申请日：1998-08-27
申请人： George Edward Andrews , Timothy P. Bock , Fridolin Ludwig Bosch , Timothy Butrie , Thomas James Miller, Jr. , Leo Anthony Procida , Stephen James Salko , Shaun P. Scrak , Rao V. Yelamarty
发明人： George Edward Andrews , Timothy P. Bock , Fridolin Ludwig Bosch , Timothy Butrie , Thomas James Miller, Jr. , Leo Anthony Procida , Stephen James Salko , Shaun P. Scrak , Rao V. Yelamarty
IPC分类号： H01S5042
CPC分类号： H04M15/745 , H04M3/42153 , H04M3/436 , H04M15/00 , H04M15/08 , H04M15/47 , H04M15/88 , H04M2215/0108 , H04M2215/0116 , H04M2215/0148 , H04M2215/0168 , H04M2215/62
摘要： An uncooled, through-hole configured laser module adapted to receive and transmit RF signals to a laser at bandwidths from direct current (DC) to about ten gigahertz. The laser module incorporates an option for two pin-out configurations. One pin-out configuration has one ground pin and one signal pin for operation at about one gigabit/second or one gigahertz. The second high performance pin-out uses two ground pins and one signal pin for operation up to about ten gigabit/second or ten gigahertz.
摘要翻译：一种未冷却的通孔配置的激光器模块，适于在从直流（DC）至约十千兆赫兹的带宽处接收和发送RF信号到激光器。激光模块包含两个引脚配置选项。一个引脚配置具有一个接地引脚和一个信号引脚，用于在大约1千兆位/秒或1千兆赫兹下操作。第二个高性能引脚输出使用两个接地引脚和一个信号引脚，工作时间可达十吉比特/十千兆赫兹。

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