在1.5微米波段使用聚甲基丙烯酸甲酯、聚苯乙烯与单壁碳纳米管的聚合物饱和吸收体材料及其在飞秒激光器中的应用

Polymer saturable absorber materials in the 1.5 microm band using poly-methyl-methacrylate and polystyrene with single-wall carbon nanotubes and their application to a femtosecond laser.

作者信息

Nakazawa Masataka, Nakahara Seiji, Hirooka Toshihiko, Yoshida Masato, Kaino Toshikuni, Komatsu Kyoji

机构信息

Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.

出版信息

Opt Lett. 2006 Apr 1;31(7):915-7. doi: 10.1364/ol.31.000915.

DOI:10.1364/ol.31.000915

PMID:16599210

Abstract

We report saturable absorber materials in the 1.5 microm band that consist of poly-methyl-methacrylate (PMMA) and polystyrene (PS) polymers with single-wall carbon nanotubes (SWNTs). A very uniform dispersion of SWNT in PMMA and PS polymers has been realized by using chlorobenzene or tetrahydrofuran as a dispersion solvent. These materials, which are as thick as 1 mm, are easily optically polished on both surfaces. This was difficult to achieve with previous thin-film materials. By incorporating PMMA/SWNT as a saturable absorber, a 171 fs pulse is successfully generated in a passively mode-locked fiber laser.

摘要

我们报道了在1.5微米波段的可饱和吸收体材料，其由聚甲基丙烯酸甲酯（PMMA）、聚苯乙烯（PS）聚合物与单壁碳纳米管（SWNT）组成。通过使用氯苯或四氢呋喃作为分散溶剂，实现了SWNT在PMMA和PS聚合物中的非常均匀的分散。这些厚度达1毫米的材料在两个表面都易于进行光学抛光。这对于先前的薄膜材料来说是难以实现的。通过将PMMA/SWNT用作可饱和吸收体，在被动锁模光纤激光器中成功产生了171飞秒脉冲。