Optoscribe has launched a monolithic glass chip for low-loss coupling to silicon photonics (SiPh) grating couplers.
The OptoCplrLT chip is designed to overcome fibre-to-SiPh photonic integrated circuit (PIC) coupling challenges to enable high volume automated assembly and help drive down costs. Created using the company’s high-speed laser writing technique, OptoCplrLT features low-loss light turning curved mirrors, which are formed in the glass, to direct the light to or from SiPh grating couplers. This prevents the need for bend-tolerant fibre solutions.
To help address footprint challenges, the chip has a low-profile interface of less than 1.5mm in height, which allows compact interface layouts that alleviate packaging constraints. It is also compatible with industry-standard materials and processes; for example, the glass chip has a coefficient of thermal expansion matched to the silicon chip, helping to maximise performance.
