Accession Number:



Intensity Noise and Bandwidth Analysis of Nanolasers Via Optical Injection

Descriptive Note:

Journal Article - Open Access

Corporate Author:

University of California San Diego United States

Report Date:


Pagination or Media Count:



A measurement method that can be used to extract the relative intensity noise of a nanolaser is introduced and analyzed. The method is based on optical injection of emission from a nanolaser serving as a master oscillator, transferring its intensity fluctuations to a low-noise semiconductor laser serving as a slave oscillator. Using the stochastic rate equation formalism, we demonstrate that the total relative intensity noise of the system is a weighted super position of the relative intensity noise of individual lasers. We further discuss the analytical relations that can be used to extract the relative intensity noise spectrum of a nanolaser. Finally, we use mutual correlation as a mathematical tool to quantify the degree of resemblance between the injected and extracted intensity fluctuations, theoretically confirming that the spectra are at least 97 correlated within the 3-dB bandwidth when an injection strength is chosen properly.

Subject Categories:

  • Lasers and Masers
  • Optics

Distribution Statement: