This paper describes a 150-Mb/s monolithic optical receiver for plastic optical fiber link using a standard CMOS technology. The receiver integrates a photodiode using an N-well/P-substrate junction, a pre amplifier, a post amplifier, and an output driver. The size, PN-junction type, and the number of metal fingers of the photodiode are optimized to meet the link requirements. The N-well/P-substrate photodiode has a 200-μm by 200-μm optical window, 0.1-A/W responsivity, 7.6-pF junction capacitance and 113-MHz bandwidth. The monolithic receiver can successfully convert 150-Mb/s optical signal into digital data through up to 30-m plastic optical fiber link with -10.4 dBm of optical sensitivity. The receiver occupies 0.56-mm<sup>2</sup> area including electrostatic discharge protection diodes and bonding pads. To reduce unnecessary power consumption when the light is not over threshold or not modulating, a simple light detector and a signal detector are introduced. In active mode, the receiver core consumes 5.8-mA DC currents at 150-Mb/s data rate from a single 3.3 V supply, while consumes only 120 μW in the sleep mode.
© 2012 Optical Society of Korea
(040.5160) Detectors : Photodetectors
(040.6040) Detectors : Silicon
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(200.4650) Optics in computing : Optical interconnects
Original Manuscript: January 19, 2012
Revised Manuscript: February 7, 2012
Manuscript Accepted: February 7, 2012
Published: March 25, 2012
Kang-Yeob Park, Won-Seok Oh, Kyung-Sun Ham, and Woo-Young Choi, "A 150-Mb/s CMOS Monolithic Optical Receiver for Plastic Optical Fiber Link," J. Opt. Soc. Korea 16, 1-5 (2012)
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