Raman-assisted ultralong ring fiber lasers in the femtosecond range

Inés Cáceres Pablo; Francesca Gallazzi; Concepción Pulido de Torre; Pedro Corredera Guillén; Juan Diego Ania-Castañón

doi:10.1117/12.2608875

4 March 2022 Raman-assisted ultralong ring fiber lasers in the femtosecond range

Inés Cáceres Pablo, Francesca Gallazzi, Concepción Pulido de Torre, Pedro Corredera Guillén, Juan Diego Ania-Castañón

Proceedings Volume PC11981, Fiber Lasers XIX: Technology and Systems; PC119810P (2022) https://doi.org/10.1117/12.2608875
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

Stable generation of ultrashort, high-energy pulses in the femtosecond range through passive harmonic mode locking is achieved in ultralong EDFA-based ring fiber oscillators using polarization-insensitive InN-based SESAMs and up to 25 km of standard communications fiber assisted by distributed Raman amplification. This demonstrates a new family of ultrafast fiber oscillators naturally operating at low repetition rates. The lasers can achieve fundamental mode locking for lengths below 10 km. By using TS-DFT the average laser spectrum is shown to correspond to that of individual pulses, confirming high-energy pulse generation without the need for external amplification and compression stages.

Conference Presentation

Citation Download Citation

Inés Cáceres Pablo, Francesca Gallazzi, Concepción Pulido de Torre, Pedro Corredera Guillén, and Juan Diego Ania-Castañón "Raman-assisted ultralong ring fiber lasers in the femtosecond range", Proc. SPIE PC11981, Fiber Lasers XIX: Technology and Systems, PC119810P (4 March 2022); https://doi.org/10.1117/12.2608875

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