Frequency modulation response due to the intensity modulation of fiber-grating Fabry–Perot lasers

Hisham, Hisham; Mahdiraji, Ghafour Amouzad; Abas, Ahmad Fauzi; Mahdi, Mohd Adzir; Adikan, Faisal Rafiq Mahamd

doi:10.1080/09500340.2014.920536

Cited by 6 publications

(7 citation statements)

References 56 publications

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“…Finally, gain compression factor (  ) represent one of the important parameters that affect the SDL dynamic responses [4,7,8]. Figures 11 and 12 are shows the DFB transient and phase plane responses for different values of ε at I bias = 0.…”

Section: Resultsmentioning

confidence: 99%

“…Having the ability to perform high-speed modification, semiconductor laser diodes (SLDs) become an excellent choice for wavelength division multiplexing (WDM) systems. However, the effect of the temperature on the laser wavelength represents the main challenge that is facing the closer WDM channels spacing [4]. This point has been overcome with the development of DWDM systems.…”

Section: Introductionmentioning

confidence: 99%

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Controlling the Q-Point in Distributed Feedback Lasers Using a Numerical Optimization Methodology

Hisham

2019

ETJ

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In this paper, a new methodology for controlling the Q-point in the distributed feedback (DFB) lasers is proposed. The method based on reducing the DFB transient period (TP) by optimizing laser’s model parameters numerically. The analysis has taken into account investigated the effects of the laser injection current (Iinj), the dc-bias level (Ibias), the temperature (T) variation, and the gain compression factor (ε). Results showed that by optimizing the value of Iinj, Ibias, T and ε; the Q-point could be controlled effectively. Where increasing the current ratio (i.e., Iinj/Ith) leads to reduce the TP value. In addition, by increasing Iinj and/or Ibias, the relaxation oscillation period (TRO) and the laser delay time (TDelay) are reduced significantly. From the other hand, the temperature varying may push the DFB laser to operate in an improper region through increasing the TP value; which may lead it to operate in the off-mode. Moreover, as ε is increased, the sinusoidal oscillations are dramatically damped results in a reduction in the TRO value and larger period of stabilized.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Controlling the Q-Point in Distributed Feedback Lasers Using a Numerical Optimization Methodology

Hisham

2019

ETJ

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“…Fluorescent sensors are widely used for medical applications, chemical and physical sensing [18]. In Bragg optical sensor, a grating causes light to behave in a certain way dependent on the periodicity of the grating [2,3,4,6].…”

Section: Frequency Modulation Fiber Optic Sensorsmentioning

confidence: 99%

“…The huge and rapid development in optic fiber technology led to significantly changed in the telecommunications industry. The ability to carry several Gbits of information at the speed of light stimulated to increase the search in fiber optics [2][3][4][5][6][7]. The continuous improvements and low costs of optical components have led to similar emergence of new product areas.…”

Section: Introductionmentioning

confidence: 99%

Optical Fiber Sensing Technology: Basics, Classifications and Applications

Hisham¹

2018

AJRS

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In this paper, the current state of art of optical fiber sensing technology is reviewed. The basics of operating principle are discussed in detailed and the various types of optical fiber sensors are classified. The performances, the limitations and a description of the technology used to fabricate the optical fiber sensors have presented. Also, the development of this technology and the expected application areas are briefly outlined.

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“…Reality, many studies have been made to transfer the VCSELs applications from the short to longwavelength data transmission. However, due to their short active region; they have the disadvantage of high temperature sensitivity [4][5].…”

Section: Introductionmentioning

confidence: 99%

Delay Time Reduction in VCSELs by Optimizing Laser Parameters

Hisham¹

2016

IJEEE

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An extensive analysis on reducing the turn-on time delay (t on) in vertical cavity surface emitting lasers (VCSELs) has conducted successfully by considering all the recombination rate coefficients R(N) Besides the R(N) coefficients, the impact of other laser parameters such as, injection current (I inj), laser cavity volume (V),mirror reflectivity (R), and operating temperature (T) also have investigated. Unlike pervious studies, the temperature dependence (TD) of t on is calculated according to TD of laser parameters instead of well-known Pankove relationship. Results showed that, t on can be reduced by increasing the I inj and/or the N i. Meanwhile, the t on increases by increasing the R(N) coefficients. Also, results showed that the t on can be reduced by increasing the R-level or by optimizing laser cavity volume.

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Frequency modulation response due to the intensity modulation of fiber-grating Fabry–Perot lasers

Cited by 6 publications

References 56 publications

Controlling the Q-Point in Distributed Feedback Lasers Using a Numerical Optimization Methodology

Controlling the Q-Point in Distributed Feedback Lasers Using a Numerical Optimization Methodology

Optical Fiber Sensing Technology: Basics, Classifications and Applications

Delay Time Reduction in VCSELs by Optimizing Laser Parameters

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