Share Email Print

Proceedings Paper

GHz repetition-rate femtosecond sources with desired repetition-rate and wavelength
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this talk, we will review our recent works about the GHz-repetition-rate (GRR) femtosecond lasers. These works make GRR femtosecond lasers more flexible in the manipulation of pulse repetition-rate and the operating wavelength. We first demonstrate a phase insensitive way to multiply the repetition-rate of a passive mode-locked laser in femtosecond regime. By inserting an intracavity flat surface with low reflectivity, we multiplied the repetition-rate of a femtosecond Cr:forsterite laser by ten times. It provides a simple and stable way to modify MHz-repetition-rate femtosecond lasers into GRR lasers. To achieve desired wavelength, which can't be directly generated by a gain medium, nonlinear conversion is required. But for GRR femtosecond lasers, the efficiency of single-pass conversion is low due to its low pulse energy. In order to increase the yield, we adopt the method of resonant-enhanced external cavity. With a resonant cavity matched to a 2-GHz repetition-rate Ti:sapphire laser, we demonstrated a high power femtosecond blue source at 2-GHz repetition-rate.

Paper Details

Date Published: 15 February 2006
PDF: 10 pages
Proc. SPIE 6118, Ultrafast Phenomena in Semiconductors and Nanostructure Materials X, 61180A (15 February 2006); doi: 10.1117/12.644048
Show Author Affiliations
Tzu-Ming Liu, National Taiwan Univ. (Taiwan)
Cheng-Ta Yu, National Taiwan Univ. (Taiwan)
Chi-Kuang Sun, National Taiwan Univ. (Taiwan)
Franz X. Kärtner, Massachusetts Institute of Technology (United States)
James G. Fujimoto, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 6118:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials X
Kong-Thon Tsen; Jin-Joo Song; Hongxing Jiang, Editor(s)

© SPIE. Terms of Use
Back to Top