Frequency switching multiwavelength Brillouin Raman fibre laser based on feedback power adjustment technique

被引：7

作者：

Ahmad, Harith ^{[1
,2
,3
]}

Al-Alimi, Abdulmoghni Wazae ^{[1
]}

Kadir, Muhammad Zamzuri bin Abdul ^{[4
]}

Bayang, Leonard ^{[1
]}

Ismail, Mohammad Faizal ^{[1
]}

Thambiratnam, Kavintheran ^{[1
]}

机构：

[1] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia

[2] Univ Malaya, Dept Phys, Kuala Lumpur 50603, Malaysia

[3] Airlangga Univ, Fac Sci & Technol, Dept Phys, Surabaya 60115, Indonesia

[4] Int Islamic Univ Malaysia, Ctr Adv Optoelect Res CAPTOR, Phys Dept, Kulliyyah Sci, Kuantan, Malaysia

来源：

JOURNAL OF MODERN OPTICS | 2020年 / 67卷 / 11期

关键词：

Fiber laser; multi-wavelength Brillouin-Raman fibre laser; Raman amplifier; Reflector; reflectivity; ERBIUM-DOPED FIBER; RAYLEIGH-SCATTERING; STIMULATED BRILLOUIN; RING LASER; GENERATION;

D O I：

10.1080/09500340.2020.1792567

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A simple switchable multiwavelength Brillouin-Raman fibre laser (BRFL) was demonstrated. The laser was arranged in a half-open cavity configuration including a physical mirror device with an adjustable reflectivity at one side of the laser cavity. The impact of the feedback power adjustment on frequency switching was carried out by comparing the peak power difference between odd- and even-order Stokes lines. Up to 468 flat-amplitude lines with a 10 GHz frequency spacing and average optical signal to noise ratio (OSNR) of 33 dB were observed with mirror reflectivity values of similar to 15% up to 60% at a 1534 nm Brillouin pump power of 7 dBm and 0.9 W Raman pump power of 0.9 W. - Under the same pumping conditions, setting the mirror reflectivity at its OFF state (where reflectivity is nearly 0%) allows for up to 242 lines with 20 GHz spacing to be realized, with ONSR values of similar to 35 dB.

引用

页码：951 / 957

页数：7

共 31 条

[1] Multi-wavelength Praseodymium fiber laser using stimulated Brillouin scattering [J].