Multiwavelength Fiber Laser Based Lyot-Sagnac and Nonlinear Amplifying Loop Mirror in the Presence of Faraday Mirror

24 Pages Posted: 20 Dec 2021

See all articles by Amira Zakiah Malek

Amira Zakiah Malek

Universiti Malaysia Perlis (UniMAP) - Faculty of Electronic Engineering Technology

N. A. Ahmad Hambali

Universiti Malaysia Perlis (UniMAP) - Faculty of Electronic Engineering Technology

Mohammad Halim. Abdul Wahid

Universiti Malaysia Perlis (UniMAP) - Faculty of Electronic Engineering Technology

Norshamsuri Ali

Universiti Malaysia Perlis (UniMAP) - Faculty of Electronic Engineering Technology

Nelidya Md. Yusoff

UTM Kuala Lumpur - Faculty of Technology and Informatics

Abstract

We demonstrate a multiwavelength fiber laser based Lyot-Sagnac and nonlinear amplifying loop mirror in the presence of Faraday mirror. Several polarization-maintaining fiber lengths at a selected injection current of semiconductor optical amplifiers are utilized in all measurements. The basic structure of this laser system comprises of dual-nonlinear loop mirror. The PMF is positioned in the Lyot-Sagnac loop mirror that serves as a comb filter. The effect of PMF lengths on the lasing performance concludes lengthier PMF causes narrower wavelength spacing. It is recorded for PMFs at 15 m, 18 m, and 25 m to have wavelength spacings of 0.4 nm, 0.35 nm, and 0.24 nm, respectively. The increment in SOA currents triggered a strong intensity-dependent loss mechanism that influences the intensity of light propagating through the multiwavelength fiber laser system. The gain increases as the SOA currents are increased and thus resulting in a greater number of lasing lines. The maximum lasing lines of 598 are generated with 25 m of PMF length and an injection current of 250 mA. The strong lasing lines without noticeable peak power and OSNR fluctuation have also been monitored at room temperature. Within a 60-minute time frame, the lowest OSNR stability of less than 0.51 dB is recorded using 25 m of PMF.

Keywords: Multiwavelength fiber laser, Lyot-Sagnac loop mirror, nonlinear amplifying loop mirror, Faraday mirror, lasing lines

Suggested Citation

Malek, Amira Zakiah and Ahmad Hambali, N. A. and Abdul Wahid, Mohammad Halim. and Ali, Norshamsuri and Md. Yusoff, Nelidya, Multiwavelength Fiber Laser Based Lyot-Sagnac and Nonlinear Amplifying Loop Mirror in the Presence of Faraday Mirror. Available at SSRN: https://ssrn.com/abstract=3990082 or http://dx.doi.org/10.2139/ssrn.3990082

Amira Zakiah Malek

Universiti Malaysia Perlis (UniMAP) - Faculty of Electronic Engineering Technology ( email )

Perlis
Malaysia

N. A. Ahmad Hambali (Contact Author)

Universiti Malaysia Perlis (UniMAP) - Faculty of Electronic Engineering Technology ( email )

Perlis
Malaysia

Mohammad Halim. Abdul Wahid

Universiti Malaysia Perlis (UniMAP) - Faculty of Electronic Engineering Technology ( email )

Perlis
Malaysia

Norshamsuri Ali

Universiti Malaysia Perlis (UniMAP) - Faculty of Electronic Engineering Technology ( email )

Perlis
Malaysia

Nelidya Md. Yusoff

UTM Kuala Lumpur - Faculty of Technology and Informatics ( email )

Malaysia

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