Design of a Monolithic Low-Threshold Narrow-Linewidth CW Mid-IR Silicon Raman Laser

Abstract

We present the design and anticipated performance of an optically pumped monolithic all-silicon mid-IR (MIR) Raman laser. For the proposed 3.15 um cw laser design pumped at a 2.71 um pump wavelength, we estimate a threshold pump power of < 10 mW and an estimated output laser linewidth of <50 MHz. This design may pave the road toward demonstration of the first mid-IR silicon Raman laser.