The generation of a lower threshold multiwavelength fiber laser in the L-band region assisted by a Sagnac loop mirror

Siti Narimah Aziz, Norhana Arsad, Ahmad Ashrif A Bakar, P. Susthitha Menon N V Visvanathan, Sayidatul Nadia Elias, Sahbudin Shaari

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A low threshold multiwavelength laser generated with the assistance of a Sagnac loop mirror is proposed. Two simple ring cavity designs are studied, namely a standard design ring cavity (design A) and a ring cavity with a Sagnac loop mirror (design B). Design B, which integrates a Sagnac loop mirror together with a polarization controller, exhibits the most optimum performance, generating seven lasing modes. Using only a 40 mW pump power from the erbium-doped fiber amplifier (EDFA), design B is the preferred ring cavity design, as it successfully produces seven lasing modes simultaneously within a 0.42 nm channel spacing in the L-band region. The ring cavity is characterized by investigating the lasing threshold through the tuning output power of the EDFA, the percentages of extracted power and cavity loss.

Original languageEnglish
Article number045107
Pages (from-to)1-4
Number of pages4
JournalLaser Physics
Volume25
Issue number4
DOIs
Publication statusPublished - 1 Apr 2015

Fingerprint

ultrahigh frequencies
Fiber lasers
fiber lasers
Mirrors
mirrors
cavities
thresholds
rings
lasing
Erbium doped fiber amplifiers
erbium
amplifier design
fibers
power loss
controllers
amplifiers
tuning
spacing
pumps
Tuning

Keywords

  • Interference
  • Multiwavelength fiber laser
  • Sagnac loop mirror

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Industrial and Manufacturing Engineering

Cite this

The generation of a lower threshold multiwavelength fiber laser in the L-band region assisted by a Sagnac loop mirror. / Aziz, Siti Narimah; Arsad, Norhana; A Bakar, Ahmad Ashrif; N V Visvanathan, P. Susthitha Menon; Elias, Sayidatul Nadia; Shaari, Sahbudin.

In: Laser Physics, Vol. 25, No. 4, 045107, 01.04.2015, p. 1-4.

Research output: Contribution to journalArticle

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AB - A low threshold multiwavelength laser generated with the assistance of a Sagnac loop mirror is proposed. Two simple ring cavity designs are studied, namely a standard design ring cavity (design A) and a ring cavity with a Sagnac loop mirror (design B). Design B, which integrates a Sagnac loop mirror together with a polarization controller, exhibits the most optimum performance, generating seven lasing modes. Using only a 40 mW pump power from the erbium-doped fiber amplifier (EDFA), design B is the preferred ring cavity design, as it successfully produces seven lasing modes simultaneously within a 0.42 nm channel spacing in the L-band region. The ring cavity is characterized by investigating the lasing threshold through the tuning output power of the EDFA, the percentages of extracted power and cavity loss.

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