Coolerless and floating wavelength grid photonic integrated circuits (pics) for wdm transmission networks

Abstract From the Canadian patent

A coolerless photonic integrated circuit (PIC) such as a semiconductor , electro-absorption modulator/laser (EML) or a coolerless optical transmitter photonic integrated circuit (TxPIC), may be operated over a wide temperature range at temperatures higher then room temperature without the need for ambient cooling or hermetic packaging. Since there is large scale integration of N optical transmission signal WDM channels on a TxPIC chip a new DWDM , system approach with novel sensing schemes and adaptive algorithms provides intelligent control of the PIC to optimize its performance and to allow optical transmitter and receiver modules in DWDM systems to operate uncooled. Moreover, the …