Abstract
We propose a single, integrated fiber-optic device that possesses both passive Q-switching and active mode-locking functions. The structure of the integrated fiber-optic device consists of a bulk-structured Bi2Te3 topological insulator (TI) layer sandwiched between the surface of a piezoelectric transducer and the flat side of a side-polished fiber. The Bi2Te3 TI is used as a saturable absorption material to induce Q-switching while the piezoelectric transducer is used to produce an acousto-optical modulation function for mode-locking. The integrated fiber-optic device is used within an erbium fiber ring cavity to readily produce stable Q-switched mode-locked pulses at 1559 nm. Control of the modulation index of the acousto-optic modulation part together with the pump power was also shown to be able to change the laser operating regimes among CW, Q-switching, Q-switched mode-locking, and mode locking.
| Original language | English |
|---|---|
| Article number | 7843661 |
| Pages (from-to) | 2175-2182 |
| Number of pages | 8 |
| Journal | Journal of Lightwave Technology |
| Volume | 35 |
| Issue number | 11 |
| DOIs | |
| State | Published - 1 Jun 2017 |
Keywords
- Optical fiber devices
- Optical fiber lasers
- Optical materials