Femtosecond fibre laser stabilisation to an optical frequency standard using a KTP electro-optic crystal
Abstract
A miniature intracavity KTP-based electro-optic phase modulator has been developed which can be used for effective stabilisation of an optical frequency comb of a femtosecond erbiumdoped fibre laser to an optical frequency standard. The use of such an electro-optic modulator (EOM) has made it possible to extend the working frequency band of a phase-locked loop system for laser stabilisation to several hundred kilohertz. We demonstrate that the KTP-based EOM is sufficiently sensitive even at a small optical length, which allows it to be readily integrated into cavities of femtosecond fibre lasers with high mode frequency spacings (over 100 MHz).
- Publication:
-
Quantum Electronics
- Pub Date:
- May 2015
- DOI:
- 10.1070/QE2015v045n05ABEH015768
- Bibcode:
- 2015QuEle..45..486N