Stable narrow spacing dual-wavelength Q-switched graphene oxide embedded in a photonic crystal fiber

被引:18
作者
Ahmad, H. [1 ]
Soltanian, M. R. K. [1 ]
Alimadad, M. [1 ]
Harun, S. W. [1 ]
机构
[1] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia
关键词
fiber laser; photonics crystal fibre; graphene oxide; dual-wavelength; ERBIUM-DOPED FIBER; SINGLE-LONGITUDINAL-MODE; SATURABLE ABSORBER; RING LASER; GENERATION;
D O I
10.1088/1054-660X/24/10/105101
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
An ultra-stable dual-wavelength saturable absorber based on a cladding-embedded commercial graphene oxide (GO) solution by capillary action in a solid core photonic crystal fiber (PCF) is demonstrated for the first time. The saturation absorption property is achieved through evanescent coupling between the guided light and the cladding-filled graphene layers. Stable spacing dual-wavelength fiber lasing is attained by controlling the polarization state of a simple 0.9 m long ring of highly doped Leikki Er80-8/125 erbium-doped fiber as the primary gain medium with PCF, polarization controller and tunable bandpass filter. Embedded GO is used to generate the desired pulsed output, and the laser is capable of generating pulses having a repetition rate of 24 kHz with an average output power and pulse energy of 0.167 mW and 8.98 nJ, respectively, at the maximum pump power of 220 mW.
引用
收藏
页数:5
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