A 250 Mbps Transmitter with a Resonant Cavity Light Emitting Diode for Plastic Optical Fiber Communication
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.
KeywordsOptical Power Modulation Current Temperature Compensation Coaxial Cable External Resistor
The authors are indebted to the anonymous referee for their valuable comments on the previous manuscript. This work was supported partially by Natural Science Foundation of Fujian Province, China (No: 2011J01361).
- 1.Torsten W, Thomas M, Vincent H, Pat D, Geoff D, Dave B, Brian M, Michael OG, Tim C, Markus M, Volker G, John DL (2008) Gigabits in the home with plugless plastic optical fiber (POF) interconnects. In: Proceedings of IEEE 2nd electronics system-integration technology conference, pp 1263–1266. doi: 10.1109/ESTC.2008.4684535
- 5.Bockstaele R, Coosemans T, Sys C, Vanwassenhove L, Van Hove A, Dhoedt B, Moerman I, Van Daele P, Baets R, Annen R, Melchior H, Hall J, Heremans P, Brunfaut M, Van Campenhout J (1999) Realisation and characterisation of 8x8 resonant cavity LED arrays mounted onto CMOS drivers for POF-based interchip interconnections. IEEE J Sel Top Quantum Electron 5(2):224–235CrossRefGoogle Scholar
- 6.Bockstaele R, Annen R, Taillaert D, Moeyersoon B, Brunfaut M, Van Campenhout J, Hall J, Melchior H, Baets R (2000) Design and realisation of high-speed transmitter arrays based on CMOS integrated drivers and resonant cavity LEDs, IEEE 13th LEOS, pp 173–174Google Scholar
- 7.Li JF, Yan HP, Cheng X, Huang YQ (2011) Design of a POF receiver with integrated photodiode in 0.5 μm BCD process, IEEE ASID, pp 194–197. doi: 10.1109/ASID.2011.5967450