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Optics Letters

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  • Vol. 23, Iss. 20 — Oct. 15, 1998
  • pp: 1588–1590

Wavelength-tunable high-power picosecond pulses from a fiber-pumped diode-seeded high-gain parametric amplifier

P. E. Britton, N. G. R. Broderick, D. J. Richardson, P. G. R. Smith, G. W. Ross, and D. C. Hanna  »View Author Affiliations


Optics Letters, Vol. 23, Issue 20, pp. 1588-1590 (1998)
http://dx.doi.org/10.1364/OL.23.001588


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Abstract

We describe a high-gain optical parametric amplifier (OPA) and optical parametric generator (OPG) system pumped by a fiber chirped-pulse amplification source based on novel large-mode-area fiber components. 45-nJ OPG thresholds and 34% pump–signal conversion efficiencies are obtained for ~4-ps pulses. OPA gains in excess of 75 dB and pump–signal conversion efficiencies of ~39% (external) are demonstrated. Furthermore, we show that injection seeding of such high-gain parametric devices by use of a low-power continuous-wave beam results in high-power (>18-kW) picosecond pulses with a time–bandwidth produce of ~0.65, some ten times less than from a free-running OPG. Using such an approach, we obtain 2.7-ps 50-nJ pulses at 1.310 μm .

© 1998 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(320.5390) Ultrafast optics : Picosecond phenomena

Citation
P. E. Britton, N. G. R. Broderick, D. J. Richardson, P. G. R. Smith, G. W. Ross, and D. C. Hanna, "Wavelength-tunable high-power picosecond pulses from a fiber-pumped diode-seeded high-gain parametric amplifier," Opt. Lett. 23, 1588-1590 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-20-1588


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