Diode-pumped Yb:KYW femtosecond laser frequency comb with stabilized carrier-envelope offset frequency
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- 作者：S. A. Meyer ; J. A. Squier and S. A. Diddams
- 关键词：PACS. 42.65.Re Ultrafast processes ; optical pulse generation and pulse compression ; 42.55.Xi Diode ; pumped lasers
- 刊名：The European Physical Journal D - Atomic, Molecular and Optical Physics
- 出版年：2008
- 出版时间：June, 2008
- 年：2008
- 卷：48
- 期：1
- 页码：19-26
- 全文大小：601.7 KB
文摘
We describe the detection and stabilization of the carrier envelope offset (CEO) frequency of a diode-pumped Yb:KYW (ytterbium-doped potassium yttrium tungstate) femtosecond oscillator that is spectrally centered at 1033 nm. The system consists of a diode-pumped, passively mode-locked femtosecond laser that produces 290 fs pulses at a repetition rate of 160 MHz. These pulses are first amplified, spectrally broadened and temporally compressed to 80 fs, and then launched into microstructured fiber to produce an octave-spanning spectrum. An f-2f nonlinear interferometer is employed with the broadened spectrum to detect and stabilize the CEO frequency through feedback to the pump laser current. These results demonstrate that such a Yb-doped tungstate laser can provide an efficient, compact, high-repetition-rate optical frequency comb with coverage from 650–1450 nm.