Options
Effect of the Carrier-Envelope-Offset Dynamics on the Stabilization of a Diode-Pumped Solid-State Frequency Comb
In
Optics Letters, 2012/37/21/4428-4430
Résumé
We investigate the dynamics of the carrier-envelope-offset (CEO) frequency, ƒ <sub>CEO</sub>, controlled by a pump current on the self-referencing of an optical frequency comb generated from a diode-pumped solid-state laser at 1.56 μm. We observe a reversal point in the tuning of ƒ <sub>CEO</sub> with the pump current. Between the low- and high-frequency region in the dynamic response of ƒ <sub>CEO</sub> to pump current modulation, we observe a significant phase shift of ≈180 deg in the transfer function. As a result, it is impossible to stabilize ƒ <sub>CEO</sub> at a pump current above the reversal point, although the free-running CEO beat at this point has a higher signal-to-noise ratio than underneath the reversal point at which the locking is straightforward. Our results indicate that a high signal-to-noise ratio and a low-noise CEO beat are not sufficient indicators for the feasibility of comb self-referencing in cases for which CEO dynamics play a dominant role.
Identifiants
Type de publication
journal article
Dossier(s) à télécharger
