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Equivalent circuit model of the semiconductor laser and the optical detector

Author: ChenMiao
Tutor: ChenFuShen
School: University of Electronic Science and Technology
Course: Optical Engineering
Keywords: Semiconductor laser Photodetector Rate equation Equivalent circuit model Chip carrier
CLC: TN248.4
Type: Master's thesis
Year: 2011
Downloads: 108
Quote: 0
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Abstract


Optoelectronic integrated circuits (OEIC) has become a key technology for the field of optical fiber communication , and to establish an accurate , simple circuit model of optoelectronic devices is the OEIC important start . Semiconductor lasers and photodetectors as the core of the optical fiber communication system devices , the equivalent circuit model and research is particularly important . This article discussed the working principle and basic structure of the device from the physical basis of the semiconductor laser and photodetector . The basis of the rate equation to describe the optical and electrical properties of the semiconductor laser , which contains the equivalent circuit model of the electrical circuit , optical circuit and phase loop . Similarly, the rate equations of the active region of the PIN photodiodes was established based on the equivalent circuit model of the semiconductor light detector . PSpice to the equivalent circuit model , the use of circuit simulation software simulation, the circuit model can be correctly reflected the device input and output characteristic , the frequency response characteristics and pulse modulation characteristics . The carrier is the important parts of the laser chip testing and packaging , the electrode structure of the surface of the carrier have an important impact on the high-frequency characteristics of the laser . The size and spacing of the electrodes determines the parasitic parameters of the size , design , and the chip matching electrode structure is capable of improving the frequency response of the device . This article uses HFSS simulation and analysis software on the laser chip carrier electrode structure . Generally the carrier of an electrode structure Firstly, simulation , and then a new carrier electrode structures were simulated and compared , and the electrode size and spacing , it is optimized.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser > Semiconductor lasers
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