CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

High-power continuous-wave operation of a fiber optical parametric oscillator in L and U bands

Rohit Malik (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; M. E. Marhic
Optical Fiber Technology (1068-5200). Vol. 20 (2014), 6, p. 694-701.
[Artikel, refereegranskad vetenskaplig]

Fiber optical parametric oscillators (OPOs), based on a highly-efficient four-wave mixing process in a chi((3)) medium, are reviewed. Their capability to provide very large tuning ranges with high output power is discussed. A novel architecture for CW fiber OPOs is presented, which has allowed us to significantly extend the performance of these devices. To do so we used: (i) a highly-nonlinear fiber (HNLF) as the parametric gain medium; (ii) a narrowband tunable intracavity filter; (iii) a high output coupling fraction from the feedback loop (up to 3 dB). With these features, we have been able to obtain excellent performance in terms of output power and tuning range, even with a reduced pump power. With only about 2 W of pump power, we have obtained the following performances: (i) tuning range of 254 nm; (ii) output power in excess of 1 W at some wavelengths; (iii) external conversion efficiency in excess of 60% at some wavelengths; (iv) linewidth as low as 8 GHz. This architecture of fiber OPO can be used for providing narrow linewidth tunable high-power CW radiation over hundreds of nanometers. Such sources could find applications in remote sensing, optical communication, nonlinear optics, etc.

Nyckelord: Nonlinear optics; Four wave mixing; Fiber parametric amplifiers; Fiber parametric oscillators

Denna post skapades 2014-12-22.
CPL Pubid: 208885


Läs direkt!

Länk till annan sajt (kan kräva inloggning)