Widely Tunable Opto-Electronic Oscillator Based on a Dual-Frequency Laser

Autor:	Loic Morvan, Olivier Llopis, Daniel Dolfi, Jeremy Maxin, Bastien Steinhausser, Gregoire Pillet
Rok vydání:	2013
Předmět:	Distributed feedback laser Materials science Optical fiber business.industry Physics::Optics dBc Laser Opto-electronic oscillator Atomic and Molecular Physics and Optics law.invention Optics law Phase noise Optoelectronics Laser power scaling business Spectral purity
Zdroj:	Journal of Lightwave Technology. 31:2919-2925
ISSN:	1558-2213 0733-8724
DOI:	10.1109/jlt.2013.2274897
Popis:	We report on an opto-electronic oscillator (OEO) widely tunable from 2.5 to 5.5 GHz. It is based on an Er,Yb:glass Dual-Frequency Laser operating at 1.53 μm which naturally provides an electrically-tunable beatnote. Inserted in an optical frequency-locked loop including a long fiber delay line, the laser beatnote reaches a spectral purity comparable to the one obtained with classical fixed frequency OEOs. As the oscillator scheme does not require an RF filter, the tunability is simply achieved by tuning the laser beatnote frequency. A fine optimization of the loop has allowed reaching a -27 dBc/Hz (respectively -108 dBc/Hz) phase noise power spectral density at 10 Hz (respectively 10 kHz) of the carrier with only 100 m optical fiber, this performance being independent of the frequency.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7e2371322627907eb20be2ac64e10790 https://doi.org/10.1109/jlt.2013.2274897 Zobrazit plný text záznamu