论文信息 - Ultralow-threshold Kerr-lens mode-locked Ti:Al(2)O(3) laser.

Ultralow-threshold Kerr-lens mode-locked Ti:Al(2)O(3) laser.

An ultralow-threshold Kerr-lens mode-locked Ti:Al(2)O(3) laser achieved by use of an extended cavity design is demonstrated. Mode-locking thresholds as low as 156 mW are achieved. Pulses with durations as short as 14 fs and bandwidths of >100 nm with output powers of ~15 mW at 50-MHz repetition rates are generated by only 200 mW of pump power. Reducing the pump power requirements to a factor of 10x less than required by most conventional Kerr-lens mode-locked lasers permits inexpensive, low-power pump lasers to be used. This will facilitate the development of low-cost, high-performance femtosecond Ti:Al(2)O(3) laser technology.

[1] D. E. Spence,et al. 60-fsec pulse generation from a self-mode-locked Ti:sapphire laser. , 1991, Optics letters.

[2] K Read,et al. Low-threshold operation of an ultrashort-pulse mode-locked Ti:sapphire laser. , 1996, Optics letters.

[3] L Gallmann,et al. Semiconductor saturable-absorber mirror assisted Kerr-lens mode-locked Ti:sapphire laser producing pulses in the two-cycle regime. , 1999, Optics letters.

[4] B E Bouma,et al. Low-repetition-rate high-peak-power Kerr-lens mode-locked TiAl(2)O(3) laser with a multiple-pass cavity. , 1999, Optics letters.

[5] M M Murnane,et al. Sub-10-fs operation of Kerr-lens mode-locked lasers. , 1996, Optics letters.

[6] I. Christov,et al. Pulse evolution in a broad-bandwidth Ti:sapphire laser. , 1994, Optics letters.

[7] Joseph W. Haus,et al. OSA Trends in Optics and Photonics Series , 2003 .

[8] M M Murnane,et al. Generation of 11-fs pulses from a self-mode-locked Ti:sapphire laser. , 1993, Optics letters.