Enhanced phase stability in passive analog photonic links with coherent Rayleigh noise reduction

Characterization of Lasers for Use in Analog Photonic Links

A Phase Noise Reduction Technique in LC Cross-coupled Oscillators with Adjusting Transistors Operating Regions

In this paper, an intuitive analysis of a phase noise reduction technique is done, and then a modified structure is proposed to achieve higher phase noise reduction than the original one. This method reduces the impact of noise sources on the phase noise by decreasing closed-loop gain in zero-crossings points and moving this high closed-loop gain to the non-zero-crossings points. This reduction...

A Novel Modulation Scheme for Noise Reduction in Analog Fiber Optic Links

A novel balanced modulation and detection scheme for analog fiber optic links is proposed to overcome the limitations in signal-to-noise ratio (SNR) and dynamic range (DR) . In this scheme, the modulating signal is split into positive and negative halves and applied to a pair of laser diodes. Both arms of the link will convey a half-wave rectified version of the signal. At the receiving end the...

Analog noise reduction in enzymatic logic gates.

In this work, we demonstrate both experimentally and theoretically that the analog noise generation by a single enzymatic logic gate can be dramatically reduced to yield gate operation with virtually no input noise amplification. We demonstrate that when a cosubstrate with a much smaller affinity than the primary substrate is used, a negligible increase in the noise output from the logic gate i...

Equalization Enhanced Phase Noise in Coherent Optical Systems with Digital Pre- and Post-Processing

Aditya Kakkar 1,*, Jaime Rodrigo Navarro 2, Richard Schatz 1, Xiaodan Pang 2, Oskars Ozolins 2, Hadrien Louchet 3, Gunnar Jacobsen 2 and Sergei Popov 1 1 Optics and Photonics Division, Royal Institute of Technology (KTH), Stockholm 164 40, Sweden; [email protected] (R.S.); [email protected] (S.P.) 2 Acreo Swedish ICT AB, Stockholm 164 40, Sweden; [email protected] (J.R.N.); xiaodan.pang@...