A 1.4 Gb/s 12-channel parallel laser diode driver IC for optical interconnections
The authors present a 12-channel parallel laser diode (LD) driver with 16.8 Gb/s throughput. The driver IC creates skew-free output and provides temperature compensation of the optical power of the LD. The IC also suppresses ringing oscillation and crosstalk. The die is 2.5x3.5 mm/sup 2/ using a 15 GHz f/sub /spl tau// Si bipolar process. The power supply voltage is 5 V and the power consumption is 4.2 W including the PECL level input signal consumption of 1.1 W and the output signal consumption of 2.0 W at 3l mApp + 2 mA bias.
A 500 Mb/s, 20-channel CMOS laser diode array driver for a parallel optical bus
For the ever-increasing demand of communication bandwidth for clustered computer interconnections, parallel optical bus technology provides a small, lightweight, flexible and low-cost alternative to the existing technology. A 20-channel, 500 Mb/s/channel CMOS laser diode (LD) driver drives a vertical cavity surface emitting laser (VCSEL) array in a parallel optical bus transmitter. It has a 500 Mb/s low voltage differential signal (LVDS) input interface with wide input common mode range. Total data throughput is 10 Gb/s. It uses a standard 3.3 V power supply with 1.6 W of power dissipation, with user features such as on-chip data scrambling and built-in link self-test.
Photonic highway: broad-band ring subscriber loops using optical signal processing
The introduction of optical signal processing technology into transmission systems and basic experiments with optical drop/insert using bistable laser diodes are discussed. With broadband integrated services digital network (B-ISDN) architecture and technology now under study, optical signal processing (OSP) is being considered to increase network capacity and flexibility. B-ISDN will require over 40 Gb/s in the feeder loop that connects the central office and remote terminals having drop/insert function. Remote terminals will process large amounts of high-speed data. An OSP-based broadband subscriber loop photonic highway that uses a ring architecture linking photonic access nodes (PANs) that directly process optical signals is proposed. Each PAN has an optical drop/insert function and can synchronize optical frame signals using a proposed optical sampling memory. Optical drop/insert experiments confirmed the feasibility of the proposed method. >