TRANSMITTER PHOTONIC INTEGRATED CIRCUIT (TXPIC) CHIP WITH ENHANCED POWER AND YIELD WITHOUT ON-CHIP AMPLIFICATION

摘要

A monolithic photonic integrated circuit (PIC) chip comprises an array of modulated sources providing a plurality of channel signals of different wavelengths and an optical combiner coupled to receive the channel signals a nd produce a combined output of the channel signals. The arrays of modulated sources are formed as ridge waveguides to enhance the output power from the respective modulated sources so that the average output power from the sourc es is approximately 2 to 4 times higher than in the case of comparable arrays o f modulated sources formed as buried waveguides.