Active control of long-period fiber-grating-based filters made in erbium-doped optical fibers

2007 ◽  
Vol 32 (7) ◽  
pp. 757 ◽  
Author(s):  
R. Slavík ◽  
M. Kulishov
2018 ◽  
Vol 16 (10) ◽  
pp. 100604 ◽  
Author(s):  
Jianfei Xing Jianfei Xing ◽  
Jianxiang Wen Jianxiang Wen ◽  
Jie Wang Jie Wang ◽  
Fufei Pang Fufei Pang ◽  
Zhenyi Chen Zhenyi Chen ◽  
...  

2003 ◽  
Author(s):  
EunSeo Choi ◽  
Young-Jae Kim ◽  
Myoung Jin Kim ◽  
Changsu Lee ◽  
Byeong Ha Lee

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2342
Author(s):  
Koken Fukushima ◽  
Manuel Guterres Soares ◽  
Atsushi Wada ◽  
Satoshi Tanaka ◽  
Fumihiko Ito

A novel tunable Erbium-doped fiber ring laser (EDFRL) with a cascaded-chirped long-period fiber grating (C-CLPG) as a wavelength selection filter is proposed from the viewpoint of the sensor use, in which a variable optical attenuator (VOA) is employed as an intracavity loss modulator to change the oscillation wavelength region so that the resultant tuning wavelength range is widened. In the demonstrative experiment for temperature measurements, oscillation over the wavelength range of 12.85 nm (1557.62~1570.47 nm), which is more than three times range of the previously presented laser and is equivalent to 64 °C in terms of temperature change, was achieved, while a single-wavelength oscillation was maintained. In addition, a practical technique for realizing a temperature measurement by combining with the VOA control is also discussed.


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