Article

Stable and uniform dual-wavelength erbium-doped fiber laser based on fiber Bragg gratings and photonic crystal fiber

Institute for Infocomm Research, Tumasik, 00, Singapore
Optics Express (Impact Factor: 3.49). 02/2005; 13(1):142-7. DOI: 10.1364/OPEX.13.000142
Source: PubMed

ABSTRACT

Based on fiber Bragg gratings (FBGs) and high nonlinear photonic crystal fiber (HN-PCF), a novel dual-wavelength erbium-doped fiber (EDF) laser is proposed and demonstrated. Experimental results show that, owing to the contributions of two degenerate four-wave mixings in the HN-PCF, the proposed fiber laser is quite stable and two output signals are uniform at room temperature. With adjustment of the attenuator, our fiber laser can selectively realize one wavelength lasing. (C) 2005 Optical Society of America.

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    • "The channel spacing is 0.184 nm, which is defined by the MKR. By using fourwave mixing (FWM) process [27]–[29], the mode competition of erbium-doped fiber could be effectively suppressed. Taking advantage of spectral filtering effect, we could flexibly tune the lasing location of multiwavelength operation by simply rotating the PC. "
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    ABSTRACT: We proposed and demonstrated a stable multiwavelength erbium-doped fiber laser by using a microfiber knot resonator (MKR)-based comb filter. By properly rotating the polarization controller, up to 11 lasing lines in a 3-dB bandwidth with 0.184-nm channel spacing were obtained. In addition, the lasing locations can be flexibly tuned by virtue of spectral filtering effect induced by the polarization-dependent isolator and the intracavity birefringence. The results demonstrated that the MKR could be employed as a high performance comb filter to realize a compact multiwavelength fiber laser.
    Full-text · Article · Jul 2014 · IEEE Photonics Technology Letters
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    • "Although there will be slight wavelength shifts for each experiments , achieving the lasing spacing of around 3 pm can be reproduced with certain effort. The DWFL also achieves a high signal to noise ratio (SNR) of more than 60 dB, similar to that as reported in [13]. The high SNR is basically contributed by two main factors; the first is the function of the TBPF in the ring cavity. "
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    ABSTRACT: By controlling the polarization state of a simple ring erbium-doped fiber laser with photonics crystal fiber, polarization controller (PC) and tunable band-pass filter, this paper demonstrates stable operation of narrow spacing dual-wavelength fiber laser (DWFL). The flexibility of the tunable band-pass filter and PC allows the spacing tuning of the DWFL from 80 pm up to 600 pm. Such tuning ability offers flexibility in the application of DWFL, particularly in tunable microwave generation and radio over fiber. Throughout the experiment, the DWFL shows high power stability within 0.6 dB and wavelength shift of less than 10 pm. In addition to that, it also produces a narrow linewidth optical output of 3 pm with a high signal to noise ratio of more than 60 dB.
    Full-text · Article · Dec 2013 · IEEE Photonics Journal
    • "Multiwavelength erbium-doped ring fiber lasers were developed: by using a highly nonlinear PCF in combination with a fiber loop mirror[52]; or through three FBGs and a highly nonlinear PCF, reaching stability and uniformity based on four- wave-mixing[53]; or by employing a multimode FBG and a highly nonlinear PCF to induce four-wave-mixing effect[54]; or making use of a side-leakage PCF based filter incorporated into the ring cavity[55]; or based on four-wave-mixing in a length of high nonlinear PCF and a sampled fiber grating[56]; or even by exploiting a erbiumdoped PCF and inducing nonlinear polarization rotation[57]. A dual-wavelength erbium-doped ring fiber laser was developed based on FBGs and a highly PCF[58]. A fourwavelength erbium-doped fiber laser was accomplished through four-wave-mixing using a highly nonlinear PCF and two FBGs[59]. "
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    ABSTRACT: A review on all-fiber lasers based on photonic crystal fibers is presented. Photonic crystal fibers present improved features beyond what conventional optical fibers can offer. Due to their geometric versatility, photonic crystal fibers can present special properties and abilities which can lead to enhanced lasing structures. A brief description of photonic crystal fibers and fiber laser’s properties is presented. All-fiber laser structures developed using photonic crystal fibers are described and divided in two groups, depending on the cavity topology: ring cavity fiber lasers and linear cavity fiber lasers. All-fiber lasers applications in the photonic crystal fiber related sensing field are described
    No preview · Article · Nov 2013 · Nanophotonics
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