公开(公告)号：US4399541A

公开(公告)日：1983-08-16

申请号：US234676

申请日：1981-02-17

申请人： Tibor F. I. Kovats ,  Tibor F. Devenyi ,  Christopher M. Look

发明人： Tibor F. I. Kovats ,  Tibor F. Devenyi ,  Christopher M. Look

IPC分类号： G02B6/42 ,  H01S5/024 ,  H01S3/04

CPC分类号： H01S5/02415 ,  G02B6/4202 ,  G02B6/4248 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/02438

摘要： A known electro-optic has a semiconductor laser, a temperature sensor for controlling an electrically operated cooler, and an optical fiber end portion anchored close to the laser to receive light from it. Usually the fiber is anchored by a mass of cured epoxy. This invention proposes anchoring the fiber in a mass of fusible alloy which is melted and solidified using a Peltier effect device which is driven with one polarity current to function as a heater and with a reverse polarity current to function as a cooler. Once the package is complete and the laser is operating, the temperature sensor together with the Peltier effect device functioning as a cooler are used to cool the laser.

摘要翻译： 已知的电光器件具有半导体激光器，用于控制电动冷却器的温度传感器和靠近激光器锚固的光纤端部，以从其接收光。 通常，纤维被固化的环氧树脂固定。 本发明提出将纤维固定在熔融和固化的大量熔融和固化中，该珀耳帖效应装置用一极性电流驱动，起到加热器和反极性电流的作用，作为冷却器。 一旦封装完成并且激光器正在运行，则温度传感器与用作冷却器的珀尔帖效应器件一起用于冷却激光器。

公开(公告)号：US4389557A

公开(公告)日：1983-06-21

申请号：US293112

申请日：1981-08-17

申请人： Tibor F. Devenyi ,  Tibor F. I. Kovats ,  Christopher M. Look

发明人： Tibor F. Devenyi ,  Tibor F. I. Kovats ,  Christopher M. Look

IPC分类号： H01L21/60 ,  H01L33/64 ,  H01S5/024 ,  H01L21/58

CPC分类号： H01L33/645 ,  H01L24/26 ,  H01L24/83 ,  H01S5/02415 ,  H01L2224/8319 ,  H01L2224/83801 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01049 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/12036 ,  H01L2924/12042 ,  H01L2924/12043 ,  H01L2924/19043 ,  H01S5/0014 ,  H01S5/02272 ,  H01S5/02423 ,  H01S5/042

摘要： In a method and apparatus for bonding a semiconductor laser chip to a heatsink and testing the bond obtained, temperature in the bonding operation is regulated by passing a small fixed current through the forward biased laser and monitoring corresponding change in voltage caused by alteration of the laser pn junction temperature. Current is passed to the laser through a floating contact consisting of a conducting vacuum pick-up pressed against the laser top surface. Bond integrity is subsequently tested at low temperature by passing a dc current greater than a threshold current through the laser and measuring the resulting light output and then passing a pulsed current with identical peak current level and again measuring light output. The difference in light output is a function of the bond thermal resistance.

摘要翻译： 在将半导体激光芯片接合到散热器并测试所得到的结合的方法和装置中，通过使小的固定电流通过正向偏置的激光器并监测由激光器的变化引起的电压的相应变化来调节接合操作中的温度 pn结温度。 电流通过浮动触点传递到激光器，该浮动触点由压在激光顶表面上的导电真空拾取器组成。 随后在低温下通过使大于阈值电流的直流电流通过激光器并测量所得到的光输出，然后通过具有相同峰值电流电平的脉冲电流并再次测量光输出，来测试接合完整性。 光输出的差异是粘结热阻的函数。

公开(公告)号：US4720163A

公开(公告)日：1988-01-19

申请号：US752983

申请日：1985-07-08

申请人： John C. Goodwin ,  Tibor F. Devenyi

发明人： John C. Goodwin ,  Tibor F. Devenyi

IPC分类号： G02B6/42 ,  G05D3/14 ,  G02B6/36

CPC分类号： G05D3/14 ,  G02B6/4227 ,  G02B6/4226

摘要： To position a light output device such as a laser diode relative to a light device such as a waveguide so as to obtain maximum coupling of light, the waveguide end facing the laser is vibrated by mechanical means to modulate the coupled light. Light is detected from a remote end of the fiber and a corresponding electrical signal is generated. Positional information contained in the oscillatory component of the signal is decoded and applied to a positioning device which then reduces misalignment between the waveguide and laser. The positioning device continuously seeks the maximum coupling position. The technique finds particular application in positioning a waveguide in a laser package prior to and during anchoring.

摘要翻译： 为了使诸如激光二极管的光输出装置相对于诸如波导的光器件定位，以获得最大的光耦合，面对激光器的波导端通过机械装置振动以调制耦合的光。 从光纤的远端检测到光，并产生相应的电信号。 包含在信号的振荡分量中的位置信息被解码并施加到定位装置，然后减小波导和激光器之间的不对准。 定位装置连续寻求最大联轴节位置。 该技术在锚定之前和期间将激光器封装中的波导定位在特定应用中。

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。

公开(公告)号：US4483541A

公开(公告)日：1984-11-20

申请号：US597040

申请日：1984-04-05

申请人： Tibor F. Devenyi ,  Iwona Turlik

发明人： Tibor F. Devenyi ,  Iwona Turlik

IPC分类号： C23C14/56 ,  C23C16/44 ,  F16J15/16 ,  F16J15/40

CPC分类号： C23C16/4409 ,  C23C14/56 ,  C23C16/4401 ,  F16J15/164 ,  F16J15/40

摘要： During production of laser diodes, crystals on which the laser diodes are formed are subjected to two high temperature processes: diffusion and alloying. These steps are performed in a quartz process tube in an oxygen free atmosphere. At some stage in the process the crystal must be moved from a cool zone to a hot zone within the tube and this is done by means of a push rod which extends through an aperture in the diffusion tube. The conventional arrangement for sealing around the push rod acts to clamp the push rod in position. Thus, temporarily, while the push rod is being moved the seal must be partly released and its sealing action is inferior. To maintain the process atomsphere free of reactive gas there is proposed by the invention a mechanism for flooding the sealing area between the push rod and the process tube with an inert gas while the sealing means is temporarily released.

摘要翻译： 在制造激光二极管期间，其上形成激光二极管的晶体经受两个高温处理：扩散和合金化。 这些步骤在无氧气氛的石英工艺管中进行。 在该过程的某个阶段，晶体必须从冷区移动到管内的热区，并且这通过延伸穿过扩散管中的孔的推杆来完成。 围绕推杆密封的常规布置用于将推杆夹紧就位。 因此，临时地，当推杆被移动时，密封件必须被部分地释放并且其密封作用较差。 为了保持原子没有反应性气体的原子，本发明提出了一种用于在密封装置被暂时释放时用惰性气体淹没推杆和处理管之间的密封区域的机构。