Femtosecond pulse generation from a titanium-doped sapphire laser using nonlinear external cavity feedback

Abstract

A continuous-wave, argon-ion-pumped, titanium-doped sapphire laser has been constructed. Pulses of 80-psec duration obtained through active mode locking have been compressed to less than 800 fsec using nonlinear external cavity feedback.

Laser, chirped pulse amplification, ultrafast optics, and Nobel Prize in Physics

“…美 国 施 瓦 茨 电 光 公 司 的 Moulton [21] 和联邦德国汉堡大学的Albers等人 [22] 同时公布 了一种新激光介质--钛宝石(Ti : Al 2 O 3 , 掺钛三氧化二 铝). 3年后, 英国伦敦帝国学院的French等人 [23] 首先对钛 宝石实现了腔外主动锁模. 1991年, 苏格兰圣安德鲁斯大 学的Spence等人 [24] Figure 2 (Color online) Chirped pulse amplification.…”

Development of a Modelocked Ti:Al2O3 Laser

“…[51 and I.C. [6] and used approximately 10 cm of single-mode (@830 nm) fused-silica fiber manufactured by the Andrew Corp. Fiber coupling was with Melles Griot diode laser lenses arranged to provide 20x imaging of the fiber output facet onto the high-reflector terminating the addditive resonator.…”

Simulation of Kerr Lens Modelocking Behavior in Sagittal Plane

“…The combination of the Kerr lens-aperture acts as a fast saturable absorber and a fast passive gain modulation is obtained. At the beginning of the Kerr modelocking developments, intensity fluctuations in laser startup were not sufficient to induces strong and steady Kerr lens modelocking [9][10] so acousto-optic modulation, additive pulse modelocking, impulsive starting or other methods [11][12][13][14][15][16][17][18][19][20][21] was required before the Kerr lens effect modelocking. Self-starting Kerr lens modelocking was obtained by use of highly nonlinear Kerr effect gain medium.…”