Инд. авторы:	Abdullina S.R., Vlasov A.A., Lobach I.A., Belai O.V., Shapiro D.A., Babin S.A.
Заглавие:	Single-frequency Yb-doped fiber laser with distributed feedback based on a random FBG
Библ. ссылка:	Abdullina S.R., Vlasov A.A., Lobach I.A., Belai O.V., Shapiro D.A., Babin S.A. Single-frequency Yb-doped fiber laser with distributed feedback based on a random FBG // Laser Physics Letters. - 2016. - Vol.13. - Iss. 7. - Art.075104. - ISSN 1612-2011. - EISSN 1612-202X.
Внешние системы:	DOI: 10.1088/1612-2011/13/7/075104; SCOPUS: 2-s2.0-84977650852; WoS: 000378845600004;
Реферат:	eng: Single-frequency operation of a 1.03 mu m fiber laser with random distributed feedback (RDFB) is demonstrated. The laser cavity is based on a 4 cm long fiber Bragg grating (FBG) consisting of 10 homogeneous subgratings with random phase and amplitude of refractive index modulation inscribed in a polarization maintaining (PM) Yb-doped fiber. Such RDFB laser generates single longitudinal mode with output power up to 25 mW, which is 3.5 times higher than that for a DFB laser based on regular pi-shifted FBG of the same length in the same fiber. The single-frequency linewidth is measured to be <100 kHz in both cases. The observed difference of the DFB and RDFB lasers is confirmed by numerical simulation showing different longitudinal distribution of intra-cavity radiation in these cases, analogous to those in the experiment.
Ключевые слова:	DFB LASERS; CODOPED FIBER; random; NOISE; fiber Bragg grating; fiber laser; distributed feedback; EFFICIENCY;
Издано:	2016
Физ. характеристика:	075104