Investigation of Multiwavelength Performance based on different SOAs

Author(s):  
N. Muridan ◽  
◽  
A. A. Awang Lah ◽  
N. Yusoff ◽  
F. Abdullah ◽  
...  

We investigated multiwavelength fiber laser (MWFL) performance using different types of semiconductor optical amplifiers (SOAs) utilizing Lyot filter as comb filter. The lasing performances of linear SOA (LSOA), nonlinear SOA (NLSOA) and booster optical amplifier (BOA) at different current settings were observed. Among the three SOAs, LSOA has the best lasing performance due to the lowest peak power difference with the highest number of lasing lines, a high ER value of 42 dB and considerable high peak power of -14.1 dBm at 550 mA. The multiwavelength laser is stable within 60 minutes at power fluctuation of less than 0.2 dB. The output spectra at 550 mA for all the SOAs are 70 nm to 80 nm wavelength difference from the ASE spectra.

2012 ◽  
Vol 20 (13) ◽  
pp. 14308 ◽  
Author(s):  
Y. Ding ◽  
R. Aviles-Espinosa ◽  
M. A. Cataluna ◽  
D. Nikitichev ◽  
M. Ruiz ◽  
...  

Author(s):  
A. H. Sulaiman ◽  
N. Md. Yusoff ◽  
N. A. Cholan ◽  
M. A. Mahdi

<span>We experimentally demonstrate a multiwavelength fiber laser (MWFL) based on bidirectional Lyot filter. A semiconductor optical amplifier (SOA) is used as the gain medium, while its combination with polarization controllers (PCs) and polarization beam combiner (PBC) induces intensity dependent loss (IDL) mechanism. The IDL mechanism acts as an intensity equalizer to flatten the multiwavelength spectrum, which can be obtained at a certain polarization state. Using different ratio of optical splitter has affected to multiwavelength flatness degradation. Subsequently, when we removed a polarizer in the setup, the extinction ratio (ER) is decreased. Ultimately, with two segments of polarization maintaining fiber (PMF), two channel spacings can be achieved due to splicing shift of 0° and 90°.</span>


2008 ◽  
Author(s):  
Yang Gao ◽  
Xing-hai Zhao ◽  
Wei Su ◽  
Yong-sheng Cheng ◽  
Mei-jian Xu ◽  
...  

2008 ◽  
Vol 91 (3-4) ◽  
pp. 429-432 ◽  
Author(s):  
Y.P. Huang ◽  
K.W. Su ◽  
A. Li ◽  
Y.F. Chen ◽  
K.F. Huang

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