Investigation of Q-Switched and Mode-Locked Pulses From a Yb3+-Doped Germano-Zirconia Silica Glass Based Fiber Laser

Wei-Cheng Chang; Yu-Sheng Lin; Yin-Wen Lee; Chien-Hsing Chen; Ja-Hon Lin; Pinninty Harshavardhan Reddy; Shyamal Das; Anirban Dhar; Mukul Chandra Paul

doi:10.1109/JPHOT.2017.2718020

IEEE Photonics Journal (Jan 2017)

Investigation of Q-Switched and Mode-Locked Pulses From a Yb3+-Doped Germano-Zirconia Silica Glass Based Fiber Laser

Wei-Cheng Chang,
Yu-Sheng Lin,
Yin-Wen Lee,
Chien-Hsing Chen,
Ja-Hon Lin,
Pinninty Harshavardhan Reddy,
Shyamal Das,
Anirban Dhar,
Mukul Chandra Paul

Affiliations

Wei-Cheng Chang: Department of Electro-Optical Engineering, and Institute of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Yu-Sheng Lin: Department of Electro-Optical Engineering, and Institute of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Yin-Wen Lee: Department of Electro-Optical Engineering, and Institute of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Chien-Hsing Chen: Department of Electro-Optical Engineering, and Institute of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Ja-Hon Lin: Department of Electro-Optical Engineering, and Institute of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Pinninty Harshavardhan Reddy: Department of Electro-Optical Engineering, and Institute of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Shyamal Das: CSIR-Central Glass and Ceramic Research Institute, Kolkata, India
Anirban Dhar: CSIR-Central Glass and Ceramic Research Institute, Kolkata, India
Mukul Chandra Paul: CSIR-Central Glass and Ceramic Research Institute, Kolkata, India

DOI: https://doi.org/10.1109/JPHOT.2017.2718020
Journal volume & issue: Vol. 9, no. 4
pp. 1 – 8

Abstract

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The Q-switched and mode-locked (QML) pulses of an all normal dispersion Yb3+-doped fiber laser (YDFL) using the nonlinear polarization rotation technique with symmetric and asymmetric Q-switched envelopes were investigated. For QML pulses with a symmetric shape, the width of envelope decreases as the pump power increases, achieving a shortest duration of ~1.4 μs. An alternate QML state of the YDFL exhibited an asymmetric envelope with a broad spectrum bandwidth, and whose short duration mode-locked pulses could be used as a light source for the cascaded Raman scattering generation through the injection of these high intensity QML pulses into an amplifier, using Yb3+-doped germano-zirconia silica (YD-GZS) glass based fiber as the gain fiber. In addition, the generation of a relatively broad spectrum near the IR range and the observation of some emission bands in the visible and UV range have been demonstrated at high pump power.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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