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1. 发明授权

US4489477A Method for screening laser diodes 失效
标题翻译：激光二极管筛选方法
公开(公告)号：US4489477A
公开(公告)日：1984-12-25
申请号：US582956
申请日：1984-02-23
申请人： Kiu-Chi D. Chik , Tibor F. Devenyi , John C. Dyment
发明人： Kiu-Chi D. Chik , Tibor F. Devenyi , John C. Dyment
IPC分类号： G01R31/26 , H01S5/00 , H01S5/40 , G01R31/36
CPC分类号： G01R31/2642 , G01R31/2635 , H01S5/0014 , H01S5/0021 , H01S5/4025
摘要： A method for screening double heterostructure laser diodes before mounting and packaging is disclosed. At a normal laser diode operating temperature, a range of pulsed current is passed through the laser diode and the lasing threshold current and slope efficiency of the laser diode are monitored. The laser diode is then subjected to a burn-in process in which it is driven at a high junction temperature for an extended time period. Subsequently the lasing threshold current and slope efficiency are again monitored by applying the same range of pulsed current at the normal operating temperature. If either the threshold current or the slope efficiency have changed by more than a predetermined amount, the laser diode is rejected. Otherwise, the laser diode is gauged as likely to have a lifetime greater than a predetermined value at normal operating conditions so warranting further testing prior to installation into a laser package.
摘要翻译：公开了在安装和包装之前筛选双异质结激光二极管的方法。在正常的激光二极管工作温度下，脉冲电流的范围通过激光二极管，并监测激光二极管的激光阈值电流和斜率效率。然后激光二极管进行老化过程，其中它在高结温下延长时间段。随后，通过在正常工作温度下施加相同的脉冲电流范围，再次监测激光阈值电流和斜率效率。如果阈值电流或斜率效率已经改变了超过预定量，则激光二极管被拒绝。否则，激光二极管在正常操作条件下被测量为可能具有大于预定值的寿命，因此在安装到激光器封装之前需要进一步的测试。

2. 发明授权

US4325034A Semiconductor lasers with integrally formed light emitting diodes 失效
标题翻译：具有整体形成的发光二极管的半导体激光器
公开(公告)号：US4325034A
公开(公告)日：1982-04-13
申请号：US121172
申请日：1980-02-13
申请人： John C. Dyment , Christopher M. Look , Kiu-Chi D. Chik
发明人： John C. Dyment , Christopher M. Look , Kiu-Chi D. Chik
IPC分类号： H01L27/15 , H01S5/026 , H01S5/06 , H01S5/40 , H01S3/19
CPC分类号： H01S5/026 , H01L27/15 , H01S5/0608 , H01S5/4006 , H01S5/4031
摘要： Semiconductor lasers exhibit transient relaxation oscillation on start-up and specific lasers often exhibit sustained spontaneous pulsations caused probably by crystalline defects. These fluctuations are suppressed in a laser having an integrally formed light emitting diode (LED) which generates spontaneous light which is coupled into the laser by virtue of the close proximity of the laser and the light emitting diode.
摘要翻译：半导体激光器在启动时表现出瞬态弛豫振荡，并且特定激光器通常表现出可能由结晶缺陷引起的持续自发脉动。在具有整体形成的发光二极管（LED）的激光器中，这些波动被抑制，该发光二极管（LED）通过激光器和发光二极管的紧密接合而产生耦合到激光器中的自发光。

3. 发明授权

US4297651A Methods for simultaneous suppression of laser pulsations and continuous monitoring of output power 失效
标题翻译：同时抑制激光脉动和连续监测输出功率的方法
公开(公告)号：US4297651A
公开(公告)日：1981-10-27
申请号：US68887
申请日：1979-08-23
申请人： John C. Dyment , Kiuchi D. Chik
发明人： John C. Dyment , Kiuchi D. Chik
IPC分类号： H01S5/00 , H01S5/022 , H01S5/065 , H01S5/068 , H01S5/125 , H01S5/14 , H01S3/19
CPC分类号： H01S5/14 , H01S5/0014 , H01S5/02284 , H01S5/125 , H01S5/1032
摘要： Semiconductor lasers exhibit transient relaxation oscillations on start-up and specific lasers often exhibit sustained spontaneous pulsations caused probably by crystalline defects. These fluctuations are suppressed by coupling laser emission into a 0.3 to 2 cm. length of waveguide and coupling light reflected from the end of the waveguide back into the laser. Embodiments disclosed include one utilizing a length of optical fibre, while others are integrated optical structures.
摘要翻译：半导体激光器在启动时表现出瞬态弛豫振荡，并且特定激光器通常表现出可能由晶体缺陷引起的持续自发脉动。通过将激光发射耦合到0.3至2cm来抑制这些波动。波导的长度和从波导的端部反射回激光器的耦合光。所公开的实施例包括使用一定长度的光纤，而另一些是集成的光学结构。

4. 发明授权

US4138274A Method of producing optoelectronic devices with control of light propagation by proton bombardment 失效
标题翻译：通过质子轰击控制光传播的光电器件的制造方法
公开(公告)号：US4138274A
公开(公告)日：1979-02-06
申请号：US900293
申请日：1978-04-26
申请人： John C. Dyment
发明人： John C. Dyment
IPC分类号： H01L21/265 , H01L21/76 , H01L33/02 , H01L33/14 , H01S3/00 , H01S3/06 , H01S3/18 , H01L21/225
CPC分类号： H01L33/025 , H01L21/2654 , H01L21/7605 , H01L33/145 , Y10S148/084
摘要： In an optoelectronic device, light is restrained from propagating in one or both confining layers on either side of an active layer by forming one or more photon absorbing barriers in one, or both, confining layers. A photon absorbing barrier can be formed by proton bombardment of a confining layer, by producing a protrusion from the substrate into the adjacent confining layer, or by producing a protrusion from a capping layer into the other confining layer, or by combinations of these. Spaced apart barriers can define a device, or sections of a multisectioned device, for example a monolithic light emitting diode and modulator.
摘要翻译：在光电子器件中，通过在一个或两个约束层中形成一个或多个光子吸收屏障，光被抑制在有源层的任一侧上的一个或两个约束层中传播。光子吸收屏障可以通过限制层的质子轰击，通过从衬底产生到相邻限制层中的突起，或通过从封盖层产生到另一封闭层中的突起，或通过这些的组合形成。间隔开的障碍可以限定一个设备，或多个设备的部分，例如单片发光二极管和调制器。

5. 发明授权

US4284884A Electro-optic devices 失效
标题翻译：电光设备
公开(公告)号：US4284884A
公开(公告)日：1981-08-18
申请号：US138747
申请日：1980-04-09
申请人： John C. Dyment , Jozef Straus , Tibor F. I. Kovats , William J. Sinclair , Anthony J. Springthorpe
发明人： John C. Dyment , Jozef Straus , Tibor F. I. Kovats , William J. Sinclair , Anthony J. Springthorpe
IPC分类号： H01L33/00 , G02B27/00
CPC分类号： H01L27/15 , H01L25/167 , H01L2924/0002
摘要： An electro-optic device for stabilizing the output level of a Burrus-type light emitting diode (LED) utilizes a photodiode to monitor side emission from an active region of the LED. Side emission closely tracks top emission, which is launched into an output fiber. An electrical analog is derived from the monitored side emission and is applied in a feedback loop to control modulation level or bias current to the LED. In this way, peak optical output (for digital systems) or r.m.s. output and linearity (for analog systems) is stabilized. The monitoring photodiode and the LED may be spatially separate or may form a unitary structure.
摘要翻译：用于稳定Burrus型发光二极管（LED）的输出电平的电光器件利用光电二极管监测来自LED的有源区域的侧发射。侧面发射密切跟踪顶部发射，发射到输出光纤。电气模拟源自监控侧发射，并且被施加在反馈环路中以控制到LED的调制电平或偏置电流。以这种方式，峰值光输出（用于数字系统）或r.m.s. 输出和线性（用于模拟系统）稳定。监控光电二极管和LED可以在空间上分离或者可以形成一体的结构。

6. 发明授权

US4163953A Double heterostructure laser for direct coupling to an optical fiber 失效
标题翻译：用于直接耦合到光纤的双异质结构激光器
公开(公告)号：US4163953A
公开(公告)日：1979-08-07
申请号：US813678
申请日：1977-07-07
申请人： Anthony J. Springthorpe , John C. Dyment
发明人： Anthony J. Springthorpe , John C. Dyment
IPC分类号： G02B6/42 , H01S3/00 , H01S5/00 , H01S5/026 , H01S5/18 , H01S5/42 , H01S3/19
CPC分类号： H01S5/42 , G02B6/4202 , G02B6/4214 , H01S5/026 , H01S5/18 , H01S3/005 , H01S5/005
摘要： A double heterostructure laser has a first confining layer on the substrate, an active layer on the first confining layer and a second confining layer on the active layer. A groove is etched through the second confining layer and active layer to form a reflecting surface at approximately 45.degree. to the plane of the active layer. The resonant cavity is formed between a cleaned end surface and a surface at the substrate. A hole through the substrate to the first confining layer is aligned with the reflecting surface for emission therethrough.
摘要翻译：双异质结构激光器在衬底上具有第一限制层，在第一限制层上具有活性层，在活性层上具有第二限制层。蚀刻通过第二限制层和有源层的沟槽，以在有源层的平面大约45°处形成反射表面。谐振腔形成在清洁的端表面和衬底表面之间。通过基板到第一限制层的孔与反射表面对准以通过其传射。

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