A pulse in which the wavelength changes during the duration of the pulse. In a diode laser, chirp arises from direct modulation of the laser, because the refractive index changes with the electron ...

Chirped pulse amplification in optical lasers is a revolutionary technique, which allows the generation of extremely powerful femtosecond pulses in the infrared and visible spectral ranges. Such ...

A low chirp pulse may sweep from 28 to 60 kHz, compared to the fixed 50 kHz of traditional sounder; a high pulse may sweep from 130 to 210 kHz, compared to a traditional sounder’s 200 kHz pulse. The ...

Chirped-pulse amplification is one of those extremely clever tricks that's easier to say in words than to do in the lab, so it's impressive that Mourou and Strickland were able to make it work.

Femtosecond, Chirped Laser Pulse Trains Could Reduce Decoherence Date: November 12, 2008 Source: Stevens Institute of Technology Summary: A physics professor is proposing to use femtosecond ...

Chirp measurements depend on determinations of pulse position, timing, cardinal points, and carrier frequency offset. The frequency offset and the pulse start and stop times are very critical to ...

Strickland and Mourou solved the problem with chirped pulse amplification for lasers in the 1980s. The process begins with a short laser pulse.

Both effects lead to rapid pulse degradation for pulse widths approaching 10 fs, and a strong pulse-width sensitivity to cavity and prism alignment. In 1994 Krausz and Szipöcs found a solution to ...

Instead of using a laser pulse with a fixed wavelength, the team proposes the use of a chirped pulse with a wavelength that changes continuously. Mackenroth, Gonoskov and Marklund have shown that by ...

Chirped pulse driven cavity soliton dynamics. Higher Education Press . Journal Frontiers of Optoelectronics Funder Open Project Program of Wuhan National Laboratory for Optoelectronics, Natural ...

NPR's Ailsa Chang speaks to scientist Donna Strickland, who won the Nobel Prize for physics. She is the first woman to do so since 1963.