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MW peak power diffraction limited monolithic Yb-doped tapered fiber amplifier
- Source :
- SPIE Proceedings.
- Publication Year :
- 2017
- Publisher :
- SPIE, 2017.
-
Abstract
- Chirped pulse monolithic fiber amplifier based on a newly developed tapered polarization maintaining Yb-doped fiber has been developed and optimized. A novel amplification regime in a relatively long (220 cm) tapered fiber of improved design, which has been theoretically predicted, allowed us to achieve an ultimate high peak power. In this regime, the signal propagates most of the fiber without amplification and growths very rapidly only in the last 80 cm of the tapered fiber, which has a mode field area of approximately 1000 μm2 near the output. We have demonstrated amplification of 20 ps chirped pulses centered at 1056-nm with spectral width of 20 nm to 0.7 MW peak power directly from the tapered fiber amplifier. The pulses had a diffraction limited quality (M2 ~ 1.124) and could be compressed down to 350 fs with 50% efficiency. In addition, amplification of narrow-band 9 ps pulses centered at 1064 nm to a peak power of 1.8 MW directly from the tapered fiber amplifier was demonstrated.
- Subjects :
- Diffraction
Ytterbium
Mode volume
Materials science
business.industry
chemistry.chemical_element
Polarization-maintaining optical fiber
02 engineering and technology
Polarization (waves)
01 natural sciences
Graded-index fiber
010309 optics
020210 optoelectronics & photonics
Optics
chemistry
0103 physical sciences
Spectral width
0202 electrical engineering, electronic engineering, information engineering
Dispersion-shifted fiber
business
Subjects
Details
- ISSN :
- 0277786X
- Database :
- OpenAIRE
- Journal :
- SPIE Proceedings
- Accession number :
- edsair.doi...........c1b36ab26c3e7b5e0de842abcb650586