NEWBURY PARK, Calif. -- GTRAN, Inc. announced today that it has significantly expanded its 40G chipset offering in the marketplace. It has successfully developed a 4:1 MUX/CMU, a 1:4 DMUX/CDR, and a widely tunable VCO for the OC-768 SONET applications. These chips represent, at such high data rates, the first monolithic integration of a multiplexer (MUX) and a clock-multiplying-unit (CMU); a demultiplexer (DMUX) and a clock-data-recovery (CDR) circuit. As is the case for OC-192, such highly integrated IC's provide low-power, high-performance, small-size overall system solutions that are essential for implementation of commercially viable OC-768 systems and sub-systems. Earlier this year, GTRAN shipped 40Gb/s transimpedance amplifiers (TIA) and limiting amplifiers (LA), being the first to provide 40Gb/s products for SONET applications. These IC's compliment the 40G chipset solution. Implemented utilizing GTRAN's recently released 200GHz Indium Phosphide based wafer fabrication process, these IC's demonstrated that the process is consistent with the circuit requirements in terms of yield, performance, and power dissipation."Success of these chips once again demonstrates GTRAN's commitment to addressing the OC-768 market needs and our expertise in ultra-high speed opto- electronic IC designs," said Dr Frank Lee, Chief Executive Officer of GTRAN Inc. "we are now one step closer to attaining the fully integrated OC-768 transponder solution"Gtran Inc.