Continuous wave, low-noise parametric amplification in monolithic silicon-nitride waveguides
Parametric amplifiers, relying on a nonlinear material to create amplification, are promising as they can amplify light without generating excess noise. Here, we will discuss our recent demonstration of continuous wave parametric amplification, in both phase-insensitive and phase-sensitive mode, based on the 3rd order nonlinearity in a monolithic, compact, spiral-shaped silicon-nitride waveguide. We observe an on-chip gain of up to about 10 dB with a noise figure of 1.2 dB, i.e., well below the conventional amplifier quantum-limited noise figure of 3 dB. Our results show the potential for realizing continuous-wave parametric amplification that can enable applications in optical communications, signal processing and quantum optics across a wide range of frequencies.
Chalmers Univ. of Technology (Sweden)
Peter Andrekson is a professor of Photonics and director of the center of excellence FORCE at Chalmers. After receiving his PhD from Chalmers in 1988, he spent three years with Bell Laboratories in the USA. He was Director of Research at Cenix Inc. and with Lehigh University in Allentown, USA, during 2000-2004. He co-founded Picosolve Inc. in 2004, since 2009 part of EXFO (Canada). He has authored over five-hundred publications in the area of optical communications. He served on the Board of Governors for the IEEE Photonics Society and on several program committees, including program chair of the European Conference on Optical Communication in 2017. He held an ERC advanced grant (2012-2017) on phase-sensitive optical amplifiers and is currently a distinguished professor by the Swedish Research Council (VR). Andrekson is a Fellow of the OSA and of the IEEE, and a member of the Royal Swedish Academy of Engineering Sciences.