Design of an erbium-doped fiber laser based on ring cavity

2009 ◽  
Author(s):  
Huawei Pang ◽  
Hua Lian ◽  
Ruimei Zhao ◽  
Tianshan Liu ◽  
Boning Hu ◽  
...  
Keyword(s):  
Author(s):  
Shaymaa Riyadh Tahhan ◽  
Ahmad Atieh ◽  
Mudhafar Hussein Ali ◽  
Mehedi Hasan ◽  
Abdulla Khudhiar Abass ◽  
...  
Keyword(s):  

Author(s):  
Nur Hidayah Muhamad Apandi ◽  
Siti Nur Fatin Zuikafly ◽  
Nabilah Kasim ◽  
Mohd Ambri Mohamed ◽  
Sulaiman Wadi Harun ◽  
...  

In this paper, a passively Q-switched Erbium doped fiber laser (EDFL) by residing Graphene nanoplatelets (GnPs) embedded in polyvinyl alcohol (PVA) based saturable absorber (SA) is demonstrated. To aid the dispersion of GNPs, a surfactant is used and then it is mixed with polyvinyl alcohol (PVA) as host polymer to develop GnPs-PVA film based passive SA. The GnPs-PVA based film then integrated in laser cavity in ring cavity configuration for pulse laser generation. The experimental works show that the proposed passive SA operates at input pump power range from 77 mW to 128 mW with a tunable repetition rate from 78.4 kHz to 114.8 kHz and a shortest pulse width of 3.69 µs. The laser produces maximum instantaneous output peak power and pulse energy of 7.3 mW and 30.46 nJ, respectively and accompanied by signal to noise ratio (SNR) of 64 dB.


2014 ◽  
Vol 23 (01) ◽  
pp. 1450009 ◽  
Author(s):  
N. Kasim ◽  
C. L. Anyi ◽  
H. Haris ◽  
F. Ahmad ◽  
N. M. Ali ◽  
...  

The performance of a stable passive Q-switched Erbium Ytterbium co-doped fiber laser (EYFL) operating at 1532.5 nm is demonstrated using a multi-layer graphene film based saturable absorber. The graphene is synthesized by electrochemical exfoliation of graphite at room temperature in 1% sodium dodecyl sulphate (SDS) aqueous solution. Graphene flakes obtained from the process are mixed with polyethylene oxide (PEO) as the host polymer to produce free standing composite thin film which acts as a passive Q-switcher in the EYFL ring cavity. At 980 nm pump power of 44 mW, the EYFL generates optical pulse train with a repetition rate of 12.33 kHz and pulse width of 9.36 μs. The highest energy of 5.8 nJ and the lowest pulse width of 2.68 μs are achieved at the maximum pump power of 78 mW. Further increase in the pump power is expected to further improve both the pulse energy and pulse width.


Optik ◽  
2019 ◽  
Vol 176 ◽  
pp. 528-534 ◽  
Author(s):  
Wei He ◽  
Lianqing Zhu ◽  
Fanyong Meng ◽  
Yanming Song ◽  
Mingli Dong

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