Dual frequency laser with two continuously and widely tunable frequencies for optical referencing of GHz to THz beatnotes

作者：Danion Gwennael^*; Hamel Cyril; Frein Ludovic; Bondu Francois; Loas Goulchen; Alouini Mehdi

来源：Optics Express, 2014, 22(15): 17673-17678.

DOI：10.1364/OE.22.017673

A dual-frequency 1.55 mu m laser for CW low noise microwave, millimeter and sub millimeter wave synthesis is demonstrated, where frequency stabilization is possible on each wavelength independently. The solid state Er:Yb laser output power is 7 mW. The amplitude noise is -150 dBc/Hz at 1 MHz offset frequency. In free running regime, the frequency noise is 3.10(5)/f Hz/sqrt(Hz) (800 Hz on a 1 mu s timescale), better than commercial fibered or semi-conductor sources at this wavelength.

• 出版日期2014-7-28