Phase dynamics of a timing extraction system based on an optically injection-locked self-oscillating bipolar heterojunction phototransistor

• Published in: Journal of lightwave technology Vol. 20; no. 11; pp. 1924 - 1932
• Main Authors: Lasri, J., Eisenstein, G.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-11-2002; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Circuit properties; Clocks; Data mining; Dynamical systems; Dynamics; Electric, optical and optoelectronic circuits; Electronics; Exact sciences and technology; Extraction; Heterojunctions; Indium gallium arsenide; Indium phosphide; Injection-locked oscillators; Integrated optoelectronics. Optoelectronic circuits; Jitter; Mathematical models; Optical and optoelectronic circuits; Optical noise; Oscillators; Phototransistors; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Superharmonics; Time measurements; Timing; Transistors; Phase noise; GHz range; Waveform; Timing jitter; timing recovery; System response; Data transmission; Phototransistor; Injection locking; Experimental study; Modeling; Optical system; Frequency characteristic; Timing circuits; Experimental result; Heterojunction bipolar transistor; Integrated optoelectronics; Timing properties; Feature extraction; Selfoscillation; Heterojunction bipolar transistors; Transfer function; Variable frequency oscillators; Injection locked oscillators
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.2002.806362

We describe the phase dynamics of a timing extraction system based on direct optical injection locking of a multifrequency oscillator employing an InGaAs/InP heterojunction bipolar phototransistor. We present a general model for the locking range, jitter transfer function, and output phase noise. The model is confirmed by a series of locking experiments. We consider first fundamental timing extraction, that is, a 10-GHz oscillator extracting the clock from a 10-Gbit/s data stream. Second, we address superharmonic timing extraction where 40-Gbit/s data lock the fourth harmonic of the 10-GHz oscillator. In the superharmonic timing extraction case, a clock is extracted at 40 GHz as well as its subharmonics at 10, 20, and 30 GHz.