Dual-frequency distributed feedback fibre laser for microwave signals generation

Autor:	Jeremy Maxin, Stephanie Molin, Alain Mugnier, Daniel Dolfi, Gregoire Pillet, Loic Morvan, David Pureur
Rok vydání:	2011
Předmět:	Materials science business.industry dBc Laser law.invention Optics law Fiber laser Phase noise Dual frequency Frequency offset Radio frequency Electrical and Electronic Engineering business Microwave
Zdroj:	Electronics Letters. 47:816-818
ISSN:	1350-911X 0013-5194
DOI:	10.1049/el.2011.1196
Popis:	Presented is a new dual-frequency laser based on an erbium-doped distributed feedback fibre laser operating on two orthogonally polarised eigenstates around 1.55 μm, exhibiting a frequency offset in the micro-wave domain. The beatnote in the free running regime between these two optical waves allows the generation of an RF signal around 1 GHz with a RIN lower than - 115 dB/Hz over the frequency range 50 kHz to 10 MHz and a phase noise of -67 dBc/Hz at 10 kHz of the RF carrier. Up to 600 MHz tunability of the beatnote is obtained by mechanical stress applied to the cavity.
Databáze:	OpenAIRE
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