Fluoride semiconductor saturable-absorber mirror for ultrashort pulse generation

被引：8
|
作者：
Schön, S [1 ]
Haiml, M [1 ]
Gallmann, L [1 ]
Keller, U [1 ]
机构：
[1] Swiss Fed Inst Technol, Hoenggerberg HPT, Swiss Fed Inst Technol, ETH,Inst Quantum Elect,Dept Phys, CH-8093 Zurich, Switzerland
来源：
OPTICS LETTERS | 2002年 / 27卷 / 20期
关键词：
D O I：
10.1364/OL.27.001845
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate what is to our knowledge the first ultrabroadband monolithically grown AlGaAs/CaF2 semiconductor saturable-absorber mirror (SESAM) that covers nearly the entire gain spectrum of a Ti:sapphire laser. A large high-reflectivity bandwidth of more than 300 nm is provided by a device consisting of only six material layers. This fluoride SESAM had a modulation depth of 2.2%, a fast recovery time constant of less than 150 fs, and a slow recovery time constant of 1.2 ps. Using this SESAM inside a Ti:sapphire laser produced self-starting sub-10-femtosecond pulses. (C) 2002 Optical Society of America.
引用
收藏
页码：1845 / 1847
页数：3
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