论文部分内容阅读
一、引言 InGaAsP/InP-DH-LED现已用于长波长光纤通信系统。由于在1.3μm波长附近石英光纤具有较低的损耗,并处于零色散点附近,在传输距离上远比短波长GaAlAs/GaAs-DH-LED远,甚至可与短波长激光器相比。使用结果表明,长波长LED具有寿命长、稳定可靠、驱动简单、温度性能好等优点。因此它已成为目前长波长光纤通信实用化过程中首先被采用的光源器件,随着光纤通信实用化的进一步发展,对器件的传输距离和响应速度也提出了更高的要求,需要长波长LED既有高辐射性能又有快响应速度。Osamu等人提出了一种单片集成
I. Introduction InGaAsP / InP-DH-LED is now used for long-wavelength optical fiber communication systems. Quartz fibers have much lower losses near the 1.3 μm wavelength and are near the zero dispersion point, far in transmission distance than short wavelength GaAlAs / GaAs-DH-LEDs, and even comparable to short wavelength lasers. The use of results show that long-wavelength LED has a long life, stable and reliable, simple driving, temperature performance and so on. Therefore, it has become the first used light source device in the practical application of long-wavelength optical fiber communication. With the further development of practical application of optical fiber communication, the transmission distance and response speed of the device are also put forward higher requirements, which require long wavelength LED Both high radiation performance and fast response speed. Osamu et al. Propose a monolithic integration