Compression of ultrashort pulses using second harmonic generation in chirped PPLN

M.A. Arbore; M. M. Fejer; A. Galvanauskas; M. E. Fermann; D. J. Harter

doi:10.1117/12.580604

8 July 1998 Compression of ultrashort pulses using second harmonic generation in chirped PPLN

M.A. Arbore, M. M. Fejer, A. Galvanauskas, M. E. Fermann, D. J. Harter

Proceedings Volume 3269, Commercial Applications of Ultrafast Lasers; (1998) https://doi.org/10.1117/12.580604
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Ultrashort-pulse lasers are, in many ways, the ideal light source for diverse applications. A particularly appealing ultrashort-pulse laser technology is diode-pumped erbium-fiber13. Fiber-based systems easily offer milliwatt-level femtosecond pulses with electrical-to-optical conversion efficiencies of several percent, while laboratory demonstrations have pushed these limits to watt-level4 average powers and pJ pulse energies5; electrical-to-optical conversion efficiencies in the 10's of percent range should be possible. However, despite their appeal, these and other ultrashort-pulse laser systems offer only limited selections of output wavelengths. Nonlinear optical frequency conversion is often used to extend the useful wavelength range of available laser sources. However, in many cases, inadequate properties of conventional nonlinear materials have prevented the application of frequency conversion to low power sources such as diode-pumped fiber lasers. Recent advances in nonlinear materials, particularly that of the quasi-phasematching (QPM) technique, have enabled the generation of an increasing range of wavelengths with improved efficiencies and with lower power laser sources. Most of the previous work on QPM frequency conversion has focused on continuous-wave (OW) or nanosecond-pulse lasers, while the work described in this summary focuses on the ultrashortpulse regime.

Citation Download Citation

M.A. Arbore, M. M. Fejer, A. Galvanauskas, M. E. Fermann, and D. J. Harter "Compression of ultrashort pulses using second harmonic generation in chirped PPLN", Proc. SPIE 3269, Commercial Applications of Ultrafast Lasers, (8 July 1998); https://doi.org/10.1117/12.580604

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KEYWORDS

Frequency conversion

Harmonic generation

Ultrafast phenomena

Laser applications

Laser sources

Continuous wave operation

Femtosecond phenomena

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