Bandwidth enhanced multi-wavelength source from an SBS-assisted fiber ring laser using four-wave mixing in a highly nonlinear bismuth oxide fiber

2006 ◽  
Author(s):  
Mable P. Fok ◽  
Chester Shu
Keyword(s):  
Bismuth Oxide ◽  
Ring Laser ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Oxide Fiber ◽  
Highly Nonlinear ◽  
Multi Wavelength

Spectral broadening due to intra-cavity four-wave mixing at low pump powers in erbium-doped fiber ring laser

2014 ◽  
Vol 28 (12) ◽  
pp. 1442008 ◽  
Author(s):  
Suchita ◽  
Soham Sarbadhikari ◽  
R. Vijaya
Keyword(s):  
Wavelength Range ◽  
Ring Laser ◽  
Ring Cavity ◽  
Optical Nonlinearity ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Highly Nonlinear ◽  
Erbium Doped

In this paper, we present the experimental results of multi-pump-induced four-wave mixing (FWM) in erbium-doped fiber ring laser (EDFRL) in the wavelength range of 1560–1600 nm. The required multiple pumps are generated within the ring cavity by an appropriate choice of the wavelength range of operation with a suitable length of erbium-doped fiber. By introducing the optical nonlinearity with specialty fibers such as the highly nonlinear fiber (HNLF) and dispersion shifted fiber (DSF), FWM processes occurring in the laser are studied at low powers of the pump laser at 980 nm. The prevalent FWM theory is improved to interpret the two-pump and four-pump-induced side band generation in the first- and second-orders, after including the effect of phase mismatch at the wavelengths used in the experiments.

scholarly journals Investigation of a tunable and switchable multi-wavelength bidirectional Brillouin-erbium fiber ring laser

2021 ◽  
Vol 51 (3) ◽  
Author(s):  
F. Wang ◽  
R.Y. Yuan
Keyword(s):  
Ring Laser ◽  
Rayleigh Scattering ◽  
Ring Cavity ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Rayleigh Backscattering ◽  
Highly Nonlinear ◽  
Multi Wavelength ◽  
Even Order ◽  
Stokes Generation

A multi-wavelength bidirectional Brillouin-erbium fiber ring laser with switchable Brillouin frequency spacing (BFS) is proposed and experimentally demonstrated. In the presented Brillouin-erbium ring laser, including an optical amplifier and a highly nonlinear fiber, and without any optical isolator, due to Rayleigh scattering, stimulated Brillouin scattering, and cascaded four-wave mixing initiated successively by the Brillouin pump (BP) light, the odd- and even-order Stokes lines are generated and circulate in the opposite direction in the ring cavity. The BP light and Stokes-induced Rayleigh backscattering light also simultaneously circulate in the ring cavity. Only by adjusting BP power, the gain competition between Brillouin based Stokes and cavity modes’ oscillation can be controlled, the laser output can be conveniently switched between single BFS and odd- or even-order double BFS. In addition, under the certain BP power conditions, the proposed multi-wavelength Brillouin-erbium fiber laser also can realize switchable odd- or even-order Stokes generation and Stokes generation with single BFS, with an increasing wavelength number in turn, only by simply adjusting pump power of the erbium-doped fiber amplifier. Stability and wavelength tunability of the proposed multi-wavelength bidirectional Brillouin-erbium fiber ring laser are also investigated, respectively.

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