Raman Scattering and the Continous Wave Silicon
نویسندگان
چکیده
Introduction Scattering of optical radiation by materials is a topic that has received much attention over the past 100 years. One particular type, Raman scattering, was first observed by C.V. Raman in 1928, and since then this inelastic scattering process has found many uses in basic and applied science. Raman scattering can be used to make spectroscopic measurements, or exploited to build Raman amplifiers and Raman lasers. The paper will discuss the theoretical aspects of Raman scattering and stimulated Raman scattering (SRS) and will focus on a specific application of SRS in which silicon is used as a gain medium for the silicon Raman laser.
منابع مشابه
Investigation of Scalar Modulation Instability in the Presence of Raman Scattering in Photonic Crystal Fibers
In this paper, by including Raman scattering in the coupled-mode equations, the scalar modulation instability in photonic crystal fibers is investigated. The evolution of the pump, Stokes and anti-Stokes waves along the fiber as well as the conversion efficiency for two cases, with and without Raman effect, are studied. The effect of anti-Stokes seed and the pump depletion on the evolution of S...
متن کاملMid-IR Silicon Raman Lasers
Silicon is arguably the best Raman medium for the mid-wave infrared spectrum. This new technology can expand the application space of silicon photonics beyond data communication and into biochemical sensing, laser medicine, and LIDAR.
متن کاملNet continuous wave optical gain in a low loss silicon-on-insulator waveguide by stimulated Raman scattering.
We observe for the first time net continuous wave optical gain in a low loss silicon-on-insulator waveguide based on stimulated Raman scattering. We show that nonlinear optical loss due to two-photon absorption induced free carrier absorption can be significantly reduced by introducing a reverse biased p-i-n diode in the waveguide. For a 4.8 cm long waveguide with an effective core area of ~1.6...
متن کاملMulti-Mode Mid-IR Silicon Raman Amplifiers
This paper discusses the prospects of silicon as a Mid-wave Infra-red Raman crystal. As a specific example of novel devices that can be realized, we introduce the concept of multi-mode silicon Raman amplifiers and their application in infrared image pre-amplification. The same technology also has application in incoherent beam combining.
متن کاملCoupled-mode theory for stimulated Raman scattering in high-Q/V(m) silicon photonic band gap defect cavity lasers.
We demonstrate the dynamics of stimulated Raman scattering in designed high-Q/V(m) silicon photonic band gap nanocavities through the coupled-mode theory framework towards optically-pumped silicon lasing. The interplay of other chi((3)) effects such as two-photon absorption and optical Kerr, related free-carrier dynamics, thermal effects, as well as linear losses such as cavity radiation and li...
متن کامل