| Full text | |
| Author(s): |
Total Authors: 4
|
| Affiliation: | [1] University of Campinas. School of Electrical and Computer Engineering - Brasil
[2] University of Campinas. School of Electrical and Computer Engineering - Brasil
[3] University of Campinas. School of Technology - Brasil
[4] University of Campinas. School of Electrical and Computer Engineering - Brasil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | J. Microw. Optoelectron. Electromagn. Appl.; v. 22, n. 4, p. 410-426, 2024-02-05. |
| Abstract | |
Abstract Low frequency noise (LFN) of highly coherent laser (linewidth below 10 kHz) is analyzed using an unbalanced Mach- Zehnder interferometer (UMZI) with adjustable long arm span. Furthermore, the Laser Relative Excess Noise (LREN) is introduced here to set a comparison of the laser coherence in relation to its emission power. The LREN is obtained using the addition of laser high and low frequency noises that appear in excess to the ideal power spectral density (PSD) Lorentzian distribution. Using this approach, it is possible to compare the tested laser in relation to an ideal laser with the same linewidth. (AU) | |
| FAPESP's process: | 21/06569-1 - High-speed strategic internet technologies |
| Grantee: | Evandro Conforti |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/08362-2 - Non-linear ultra-fast technologies for coherent optical systems |
| Grantee: | Mareli Rodigheri |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 21/11380-5 - CPTEn - São Paulo Center for the Study of Energy Transition |
| Grantee: | Luiz Carlos Pereira da Silva |
| Support Opportunities: | Research Grants - Science Centers for Development |
| FAPESP's process: | 22/11596-0 - Scientific EMU: acquisition of transmission and characterization equipment for ultra-high-speed data links |
| Grantee: | Darli Augusto de Arruda Mello |
| Support Opportunities: | Research Infrastructure Program - Scientific |