Generation and amplification of femtosecond pulses in Tm:fiber

R. Andrew Sims; Pankaj Kadwani; Lawrence Shah; Martin Richardson

doi:10.1117/12.886422

3 June 2011 Generation and amplification of femtosecond pulses in Tm:fiber

R. Andrew Sims, Pankaj Kadwani, Lawrence Shah, Martin Richardson

Proceedings Volume 8039, Laser Technology for Defense and Security VII; 80390K (2011) https://doi.org/10.1117/12.886422
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

We describe the generation and amplification of femtosecond pulses at 2-μm wavelength in thulium doped fiber. The mode-locked oscillator is a ring cavity based on single-mode Tm:fiber producing stable soliton pulses at 70 MHz repetition rate with 40 pJ pulse energy, centered at ~1.97 μm wavelength with ~8 nm (FWHM) spectral width. These pulses seed a Tm:fiber based Raman amplifier, which increases the energy up to 9 nJ. The spectrum is broadened up to 40 nm (FWHM) and the center wavelength can be shifted from ~1.97- 2.15 μm. The Raman solitons are inherently time-bandwidth limited with pulse durations <150 fs.

Citation Download Citation

R. Andrew Sims, Pankaj Kadwani, Lawrence Shah, and Martin Richardson "Generation and amplification of femtosecond pulses in Tm:fiber", Proc. SPIE 8039, Laser Technology for Defense and Security VII, 80390K (3 June 2011); https://doi.org/10.1117/12.886422

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