Comment on “Demonstration of net gain at 1550nm in an erbium-doped polymer single mode rib waveguide” [Appl. Phys. Lett. 89, 141124 (2006)]

2007 ◽  
Vol 91 (10) ◽  
pp. 106101
Author(s):  
De-Long Zhang
2004 ◽  
Vol 85 (22) ◽  
pp. 5137-5139 ◽  
Author(s):  
M. A. Reilly ◽  
C. Marinelli ◽  
C. N. Morgan ◽  
R. V. Penty ◽  
I. H. White ◽  
...  

Laser Physics ◽  
2021 ◽  
Vol 32 (1) ◽  
pp. 015101
Author(s):  
Gangxiao Yan ◽  
Weihua Zhang ◽  
Peng Li ◽  
Qiuhao Jiang ◽  
Meng Wu ◽  
...  

Abstract A switchable and tunable erbium-doped fiber laser with a linear cavity based on fiber Bragg gratings embedded in Sagnac rings is proposed and experimentally verified. Due to the stress birefringence effect and the polarized hole burning effect, which are introduced into the single-mode fiber in the polarization controllers (PCs) by the PCs, the designed laser can achieve seven kinds of laser-states output including three kinds of single-wavelength laser states, three kinds of dual-wavelength laser states and one kind of triple-wavelength laser state. The optical signal-to-noise ratios of the output wavelengths are all higher than 52 dB, and the wavelength shifts are all less than 0.04 nm. Furthermore, the temperature tuning of the wavelength range is also researched, which is about 1.2 nm. Due to advantages, such as low cost, simple structure, easy switching and multiple laser states, the designed laser has great application potential in laser radar, optical fiber sensing and so on.


2019 ◽  
Vol 94 (12) ◽  
pp. 125801
Author(s):  
Chien-Hung Yeh ◽  
Yao-Jen Chang ◽  
Wen-Piao Lin ◽  
Yue-Ru Xie ◽  
Chien-Ming Luo ◽  
...  
Keyword(s):  

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1439 ◽  
Author(s):  
Zhihe Guo ◽  
Haotian Wang ◽  
Chenming Zhao ◽  
Lin Chen ◽  
Sheng Liu ◽  
...  

We present the spectral modulation of an optofluidic microdisk device and investigate the mechanism and characteristics of the microdisk laser in aqueous media. The optofluidic microdisk device combines a solid-state dye-doped polymer microdisk with a microfluidic channel device, whose optical field can interact with the aqueous media. Interesting phenomena, such as mode splitting and single-mode lasing in the laser spectrum, can be observed in two coupled microdisks under the pump laser. We modulated the spectra by changing the gap of the two coupled microdisks, the refractive indices of the aqueous media, and the position of a pump light, namely, selective pumping schemes. This optofluidic microlaser provides a method to modulate the laser spectra precisely and flexibly, which will help to further understand spectral properties of coupled microcavity laser systems and develop potential applications in photobiology and photomedicine.


1989 ◽  
Vol 7 (4) ◽  
pp. 651-656 ◽  
Author(s):  
C.R. Giles ◽  
E. Desurvire ◽  
J.R. Talman ◽  
J.R. Simpson ◽  
P.C. Becker

2018 ◽  
Vol 8 (7) ◽  
pp. 1135 ◽  
Author(s):  
Anum Khattak ◽  
Gerard Tatel ◽  
Li Wei

We demonstrated a compact tunable and switchable single/dual-wavelength erbium-doped fiber laser. The fiber laser can be tuned and switched from single-wavelength to dual-wavelength oscillation by using our recently proposed tunable comb filter. The comb filter consists of a section of multimode fiber (MMF) coiled into a polarization controller and two sections of single mode fibers (SMFs) to form a SMF/MMF/SMF structure, serving as a simple tunable all-fiber Mach-Zehnder interferometer. Due to the insertion of the MMF-based polarization controller (PC), an additional phase shift is introduced from the difference of the birefringence intensity in different dominant modes, which can be used to tune the fiber laser. In the experiment, by properly adjusting the PC, a tuning range of 9.3 nm can be achieved for the single-wavelength operation. Moreover, dual-wavelength operation with different free-spectral-ranges can be obtained. The tunable and switchable fiber lasers are of great importance for their applications in optical testing, optical fiber sensing, and signal processing.


1985 ◽  
Vol 57 (3) ◽  
pp. 727-731 ◽  
Author(s):  
J. A. Shimer ◽  
W. R. Holbrook ◽  
C. L. Reynolds ◽  
C. W. Thompson ◽  
N. A. Olsson ◽  
...  

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