MEH-PPV organic material as saturable absorber for Q-switching and mode-locking applications

被引：7

作者：

Samsamnun, F. S. M. ^{[1
]}

Zulkipli, N. F. ^{[1
]}

Majid, W. H. A. ^{[2
]}

Khudus, M. I. M. A. ^{[2
]}

Shuhaimi, A. ^{[2
]}

Rosol, A. H. A. ^{[1
]}

Arof, H. ^{[1
]}

Yasin, M. ^{[3
]}

Harun, S. W. ^{[1
]}

机构：

[1] Univ Malaya, Dept Elect Engn, Photon Engn Lab, Kuala Lumpur 50603, Malaysia

[2] Univ Malaya, Fac Sci, Low Dimens Mat Res Ctr, Dept Phys, Kuala Lumpur, Malaysia

[3] Airlangga Univ, Fac Sci & Technol, Dept Phys, Surabaya, Indonesia

来源：

JOURNAL OF MODERN OPTICS | 2020年 / 67卷 / 08期

关键词：

Q-switching; mode-locking; organic semiconductor saturable absorber; fiber laser; FIBER LASER; TRANSISTORS; FILM;

D O I：

10.1080/09500340.2020.1769762

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Q-switched and mode-locked pulse generation in Erbium-doped fiber lasers (EDFLs) are demonstrated using Poly [2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) organic semiconductor material as a saturable absorber (SA) for the first time. The MEH-PPV was prepared in the form of a thin film having a modulation depth of 12% and saturation intensity of 40 MW/cm(2). The SA was placed in a laser cavity to produce a stable Q-switched operating at 1564.0 nm. The maximum repetition rate of 78.62 kHz, minimum pulse width of 3.54 mu s and maximum pulse energy of 59.45 nJ were attained at 125.2 mW pump power. On the other hand, by incorporating an additional 100 m long single mode fiber, the mode locked EDFL self-started as the pump power was raised above 125.2 mW. The soliton pulse was obtained due to the enhancement of the nonlinearity in the cavity. The mode-locked laser operated at 1568.5 nm with a fixed repetition rate of 1.859 MHz and pulse width of 2.97 ps.

引用

页码：746 / 753

页数：8

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