SiFotonics launches silicon-based fully integrated chip CR4Q01 to facilitate 100G coherent communications
SiFotonics Technologies, one of the world's leading silicon photonics technology companies, recently launched for the first time a silicon-based fully integrated chip entirely based on CMOS technology The 100G coherent receiver (Integrated coherent receiver, ICR) chip CR4Q01 is targeted at the 100G DP-QPSK coherent communication market for backbone networks and metropolitan area networks.
CR4Q01 not only reaches the level of traditional coherent receivers based on discrete devices such as PLC in terms of performance, but is also the smallest similar device in the industry. First, the packaging is simple and consistent, and the overall design fully complies with the metropolitan area network coherent receiver protocol formulated by OIF in March 2015.
CR4Q01 is only 2.5×5.65mm2 in size. It integrates all fiber waveguide couplers, polarization rotation beam splitters, and two 90? Mixers and eight 32G Ge/Si waveguide photodetector arrays and other devices.
Among them, the direct coupling loss between the waveguide coupler and the single-mode optical fiber is <2dB at each end, the polarization-dependent loss is less than 0.5dB, it can cover O/C/L and other bands, and has excellent coupling tolerance; The polarization rotation beam splitter (used to split the two polarization components of the incident optical signal into two independent waveguides) can simultaneously realize the polarization rotation of the TM mode to the TE mode, and the additional loss introduced is less than 0.5dB, and in the C-band The internal polarization extinction ratios are all higher than 22dB; the 32G waveguide Ge/Si photodetector has the characteristics of high responsivity, low capacitance, and high common mode rejection ratio of each channel.
CR4Q01 is completely based on silicon-based CMOS technology, which can ensure the high yield, consistency and reliability required for mass production.
SiFotonics is also developing the next-generation coherent receiver integrated chip CR4QS1 that matches the transimpedance amplifier with SPI function. Its size is only 2.5×2.2mm2. It is expected that samples will be provided in Q2 next year, which will become the highest integration level in the industry. The tallest and smallest 100G ICR chip.
“On such a small chip, so many optical and electrical functional units can be integrated, the performance meets the requirements, and the popularity among customers is somewhat beyond our expectations,” SiFotonics CEO Dr. Pan Dong said: "Silicon photonics is no longer a dream in textbooks, it has arrived.
Such a highly integrated 100G silicon photonic chip allows us to clearly see the application prospects of silicon photonics technology. From backbone networks, metropolitan area networks and data centers, to future 8K high-definition TVs
We are lucky to be the promoter of turning this technology into products
”< /p>
About SiFotonics: < /p>
SiFotonics Technologies is committed to becoming the pioneer and leader of silicon photonic devices and integration technology, providing customers with the next generation of high-speed photoelectric conversion solutions.
Since Since 2006, the company has been committed to the research and platform construction of silicon photonics technology, and has cooperated with CMOS Foundry to develop an exclusive silicon photonics production line.
SiFotonics has realized silicon germanium photodetectors (Ge/Si). PIN), germanium silicon avalanche photodetector (Ge/Si APD) and other products have been mass-produced, and 2.5G/10G/25GPIN/APD chips and their arrays have been fully launched into the market, covering the wavelength range of 850nm~1577nm.
We have also completed silicon photonics integration. technology related process debugging, and Successfully trial-produced the high-performance 100G coherent receiver chip CR4Q01.
Soon, SiFotonics will launch a 100G integrated transceiver chip for data center applications.
p>
