This paper summarizes experiments using a modelocked laser to produce a fast-rising, low-jitter electrical signal for clocking CMOS circuits. A simple integrating optical-to-electrical conversion scheme using two photodiodes is used to minimize jitter, area and electrical power consumption. This scheme is called receiver-less because there is no receiver to introduce unwanted skew, jitter and e...

In this paper we examine theoretically the performance of an optical receiver based on an Hg0.77Cd0.23Te photoconductive detector for its possible application at 9.6 μm free space optical communication system at moderate bit rates. A rigorous noise model of the receiver has been developed for this purpose by incorporating all significant sources of noise. Our analysis reveals that the photocond...

This paper describes a coherent optical receiver, ELO. 1 ELO where drifts of the carrier phase and state of polarization are L E (2) estimated with digital signal processing. The complex amplitude LO,y 2 J jLO of the signal is entirely restored with such receiver. where ELO is the constant amplitude of LO. The 90' optical hybrids in Fig.1 generate electric fields E1. .8 at double balanced

In this paper we investigate the noise and crosstalk characteristics of all optical router based on SMZ switch using a numerical model. Two effects, the relative intensity noise (RIN) and channel crosstalk (CXT) that degrade the bit error rate (BER) performance of the router are investigated. Numerical simulation results show that for BER of 10, the sensitivity of the receiver with all-optical ...

Optical transimpedance receivers implemented in CMOS VLSI technologies are modeled and optimized for freespace optoelectronic interconnections. Sensitivity, bandwidth, power dissipation, and circuit area are analyzed for receivers using three different submicron CMOS processes. A comparison with the circuit noise limited optical power indicates that, for digital computing applications, the rece...

An optical receiver for 40 Gbit=s communication systems with 8274 V=W conversion gain and 950 mVp–p limiting differential output is reported. A back-to-back sensitivity of 9.4 dBm at a bit error rate of 10 12 was observed for a 2 1 pseudorandom binary sequence. The receiver incorporates an InP based pin diode, a transimpedance amplifier and a limiting amplifier. This is the largest conversion g...