A 250 Mbps transmitter with a resonant cavity light emitting diode for plastic optical fiber communication
- 海洋环境－会议论文 
For obtaining high performance and low cost, a hybrid integrated transmitter is presented for plastic optical fiber (POF) communication including a 250 Mbps driver with temperature compensation of modulation current and a bonded 650 nm resonant cavity light emitting diode (RCLED) because of their incompatible material. The driver consists of an input buffer, a pre-drive amplifier, a main driver, a temperature compensation circuit to minimize the variation in extinction ratio, and a reference voltage circuit in 0.5 μm BCD (Bipolar, CMOS, and DMOS) technology. The simulation results show that it can provide modulation current of 33 mA, -3 dB bandwidth of 176.4 MHz and the operating speed of 250 Mbps at 5 V. By using the temperature compensation circuit, the modulation current of the driver has increases from 33 mA at 15 C to 57 mA at 78 C. The 650 nm RCLED occupying an area of 200 μm × 200 μm is bonded to this provided driver with bonding pads. The transmitter produces the maximal optical power of -1.5 dBm. ? 2014 Springer Science+Business Media New York.