Widely tunable opto-electronic oscillator based on a dual frequency laser

J. Maxin; K. Saleh; G. Pillet; L. Morvan; O. Llopis; D. Dolfi

doi:10.1117/12.2002527

27 March 2013 Widely tunable opto-electronic oscillator based on a dual frequency laser

J. Maxin, K. Saleh, G. Pillet, L. Morvan, O. Llopis, D. Dolfi

Proceedings Volume 8624, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI; 86240M (2013) https://doi.org/10.1117/12.2002527
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

We present the stabilization of the beatnote of an Er,Yb:glass Dual Frequency Laser at 1.53 μm with optical fiber delay lines. Instead of standard optoelectronics oscillators, this architecture does not need RF filter and offers a wide tunability from 2.5 to 5.5 GHz. Thank to a fine analysis of the laser RIN to phase noise conversion in the photodiodes, the expected RF-amplifiers noise limit is reached with a phase noise power spectral density of -25 dBc/Hz at 10 Hz (respectively -110 dBc/Hz at 10 kHz) from the carrier over the whole tuning range. Implementation of a double fiber coil architecture improves the oscillator spectral purity: the phase noise reaches a level of -35 dBc/Hz at 10 Hz (respectively -112 dBc/Hz respectively 10 kHz) from the carrier.

Citation Download Citation

J. Maxin, K. Saleh, G. Pillet, L. Morvan, O. Llopis, and D. Dolfi "Widely tunable opto-electronic oscillator based on a dual frequency laser", Proc. SPIE 8624, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI, 86240M (27 March 2013); https://doi.org/10.1117/12.2002527

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