Eye-diagram and Q factor evaluation of fiber ring laser in lightwave transmission

Yu, Yi‐Lin; Liaw, Shien‐Kuei; Lee, Yin-Wen

doi:10.1016/j.yofte.2016.06.002

Cited by 14 publications

(7 citation statements)

References 15 publications

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“…In the experiment, the broad wavelength tunability can be reached in a 80 nm tuning bandwidth from 1521.0 to 1601.0 nm, as seen in figure 2. In simple terms, the available gain bandwidth of the EDF affects the wavelength tunability of the fiber-based laser [1,16]. However, the proposed EDF laser can cover the available bandwidth both in the C-and L-bands, possibly due to the appropriate length of the EDF-based SA and main ring for spreading the gain to longer wavelengths.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Utilizing C-band erbium fiber and saturable absorber for broadband and continuous wavelength tunability laser with single-mode oscillation

et al. 2020

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In the paper, we report and exhibit a C-band erbium-doped fiber (EDF) based gain medium laser together with a 5 m unpumped EDF saturable absorber (SA) to attain broadly wavelength-selectable range and single-longitudinal-mode operation. Here, the whole tunability range of 1521.0 to 1601.0 nm (C plus L bands) can be accomplished by the designed EDF laser scheme. The output power and optical signal-to-noise ratio of the EDF laser are detected between −10.9 and 2.3 dBm and 33.1 and 45.1 dB/0.06 nm, respectively. In addition, the achievable SLM operation range runs from 1521.0 to 1581.0 nm due to the absorption limit of the EDF SA. The detected output stability and Lorentzian linewidth are also experimentally considered and significantly discussed.

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Section: Experiments and Resultsmentioning

confidence: 99%

Utilizing C-band erbium fiber and saturable absorber for broadband and continuous wavelength tunability laser with single-mode oscillation

et al. 2020

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“…Input power (dBm), length of optical fiber (km), and coefficient of attenuation (dB/km) were entered. Where each Q-Factor (dB) and was calculated an eye diagram [9][10]. There are several types of FBGs, such as chirped FBGs that provide different wavelengths (frequencies) so that they are very suitable for use as dispersal compensation elements for one wavelength of several waves.…”

Section: Introductionmentioning

confidence: 99%

Dispersion compensation of optical systems utilizing fiber Bragg grating at 15 Gbits/s

Ali

Mutashar

Hammadi

2021

IJEECS

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Nowadays the technological advancement of the information transmission is developing very rapidly and it becomes necessary to achieve a high speed in the transmission of data as well as higher data rate. Developments in optical communication systems address these needs. However, despite all the features and advantages of optical communication systems, the dispersion is still the main challenges. In this paper and to this end, fiber Bragg grating (FBG) is used in order to overcome the dispersion issue in the wavelength division multiplexing (WDM) transmission system. The WDM transmission system is simulated using the advanced tools of Optisystem 13. The simulation program was used at a speed of 15 Gbits/s with 50Km optical fiber length based on the different input design parameters such as input signal power, optical fiber length and attenuation coefficient. In addition, the output performance parameters are discussed in terms of quality factor (Q-factor) and eye diagram. Moreover, a comparison between the proposed design and previous related works is presented.

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“…Practically, the homogeneous broadening and spatial-hole-burning effect of EDF and a long loop cavity in EDF-based laser leads to unstable multi-longitudinal-mode (MLM) oscillation [5]. To obtain the stable continuous-wave (CW) tunability and single-longitudinal-mode (SLM) in EDF based laser, there are several related researches have been proposed to suppress the densely MLM noises, such as using compound-ring configuration [6], [7], employing Rayleigh backscattering in tapered fiber [8], applying EDF-based saturation absorber (SA) [9], designing optical self-injection technique [10], [11], utilizing Sagnac-ring architecture [12], [13] and employing Mach-Zehnder interferometer [14]. Moreover, to achieve CW wavelength-tunability, fiber Bragg grating [15], tunable…”

Section: Introductionmentioning

confidence: 99%

A Selectable Single-Mode Erbium Laser With Power-Flattened Output Employing Dual-Sagnac-Ring

et al. 2019

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To achieve wavelength-selectable and stable erbium-doped fiber (EDF) laser, a dual-Sagnacring configuration is designed to reach single-longitudinal-mode (SLM) oscillation and power-flattened output simultaneously. The presented and experimentally demonstrated EDF laser can also obtain the output power of 7.5 to 11.8 dBm in the continuous-wave (CW) tunability of 1523.0 to 1571.0 nm. Here, the power variation of lasing wavelength can be below than 1.0 dB over a wide working range of 1525.0-1565.0 nm for power-flattened output. Moreover, the 3-dB spectrum linewidth of presented EDF-based laser is measured in the range of 16.4-22.2 kHz via the Lorentzian fitting.

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Eye-diagram and Q factor evaluation of fiber ring laser in lightwave transmission

Cited by 14 publications

References 15 publications

Utilizing C-band erbium fiber and saturable absorber for broadband and continuous wavelength tunability laser with single-mode oscillation

Utilizing C-band erbium fiber and saturable absorber for broadband and continuous wavelength tunability laser with single-mode oscillation

Dispersion compensation of optical systems utilizing fiber Bragg grating at 15 Gbits/s

A Selectable Single-Mode Erbium Laser With Power-Flattened Output Employing Dual-Sagnac-Ring

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