Burst-mode pulse generation from a bismuth-doped germanosilicate fiber laser through self Q-switched mode-locking

被引：12

作者：

Jung, M. ^{[1
]}

Lee, J. ^{[1
]}

Melkumov, M. ^{[2
]}

Khopin, V. F. ^{[3
]}

Dianov, E. M. ^{[2
]}

Lee, J. H. ^{[1
]}

机构：

[1] Univ Seoul, Sch Elect & Comp Engn, Seoul 130743, South Korea

[2] Russian Acad Sci, Fiber Opt Res Ctr, Moscow 119333, Russia

[3] RAS, Inst Chem High Pur Subst, Nizhnii Novgorod 603600, Russia

来源：

LASER PHYSICS LETTERS | 2014年 / 11卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

fiber lasers; Q-switching; mode-looking; bismuth-doped fiber; germanosilicate fiber; EXCITED-STATE ABSORPTION; CAVITY MODULATION;

D O I：

10.1088/1612-2011/11/12/125102

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A bismuth-doped germanosilicate fiber laser was experimentally demonstrated to engage in self-Q-switched mode-locking at a wavelength of 1470 nm. Mode-locked pulse bursts were generated from a ring cavity without using a saturable absorber when the cavity length was properly adjusted. At a cavity length of 65 m, repetition rates of similar to 31.5 kHz and similar to 3.088 MHz and temporal widths of similar to 4.7 mu s and similar to 1.2 ns were measured for the Q-switching envelopes and mode-locked pulses under the Q-switching envelopes, respectively. The laser operating regime was observed to change from Q-switching to Q-switched mode-locking as cavity length increases by adding a segment of anomalously dispersive fiber. The output pulse characteristics such as pulse width and repetition rate of the Q-switching envelopes and mode-locked pulses were also investigated with respect to the cavity length.

引用

页数：5

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