Exploring the Emergence of the Self-Q-Switching in Diode-Pumped Yb:KGW Monolithic Lasers

Tzu Lin Huang; Hsin Chih Liang; Kuan-Wei Su; Yung-Fu Chen

doi:10.1109/JSTQE.2018.2801480

Exploring the Emergence of the Self-Q-Switching in Diode-Pumped Yb:KGW Monolithic Lasers

Tzu Lin Huang, Hsin Chih Liang, Kuan-Wei Su, Yung-Fu Chen^*

^*Corresponding author for this work

Department of Electrophysics

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We perform through experiments to explore the key factors for the emergence of a self-Q-switching phenomenon in diode-pumped Yb:KGW lasers. In addition to the output transmission, it is found that the mode-to-pump size ratio is a critical factor leading to the self-Q-switching. The region of the cavity mode volume without overlapping the pump volume plays a role of modulation loss to result in self-Q-switching. With an output transmission of 4% and a mode-to-pump size ratio of approximately 1.2, simultaneous self-Q-switching and self-mode-locking with the repetition rate of 23.1 GHz were experimentally observed. At an incident pump power of 9.2 W, the maximum pulse energy was estimated to be 1.4 μJ at the repetition rate of 880 kHz with an average output of 1.27 W.

Original language	English
Article number	1601106
Number of pages	6
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	24
Issue number	5
DOIs	https://doi.org/10.1109/JSTQE.2018.2801480
State	Published - 1 Sep 2018

Keywords

diode-pumped
mode locking
Q-switching
ytterbium laser
SOLID-STATE LASERS
REPETITION-RATE
MODE
OPTIMIZATION
OPERATION
DESIGN
YB3+

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title = "Exploring the Emergence of the Self-Q-Switching in Diode-Pumped Yb:KGW Monolithic Lasers",

abstract = "We perform through experiments to explore the key factors for the emergence of a self-Q-switching phenomenon in diode-pumped Yb:KGW lasers. In addition to the output transmission, it is found that the mode-to-pump size ratio is a critical factor leading to the self-Q-switching. The region of the cavity mode volume without overlapping the pump volume plays a role of modulation loss to result in self-Q-switching. With an output transmission of 4% and a mode-to-pump size ratio of approximately 1.2, simultaneous self-Q-switching and self-mode-locking with the repetition rate of 23.1 GHz were experimentally observed. At an incident pump power of 9.2 W, the maximum pulse energy was estimated to be 1.4 μJ at the repetition rate of 880 kHz with an average output of 1.27 W.",

keywords = "diode-pumped, mode locking, Q-switching, ytterbium laser, SOLID-STATE LASERS, REPETITION-RATE, MODE, OPTIMIZATION, OPERATION, DESIGN, YB3+",

author = "Huang, {Tzu Lin} and Liang, {Hsin Chih} and Kuan-Wei Su and Yung-Fu Chen",

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AU - Liang, Hsin Chih

AU - Su, Kuan-Wei

AU - Chen, Yung-Fu

PY - 2018/9/1

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N2 - We perform through experiments to explore the key factors for the emergence of a self-Q-switching phenomenon in diode-pumped Yb:KGW lasers. In addition to the output transmission, it is found that the mode-to-pump size ratio is a critical factor leading to the self-Q-switching. The region of the cavity mode volume without overlapping the pump volume plays a role of modulation loss to result in self-Q-switching. With an output transmission of 4% and a mode-to-pump size ratio of approximately 1.2, simultaneous self-Q-switching and self-mode-locking with the repetition rate of 23.1 GHz were experimentally observed. At an incident pump power of 9.2 W, the maximum pulse energy was estimated to be 1.4 μJ at the repetition rate of 880 kHz with an average output of 1.27 W.

AB - We perform through experiments to explore the key factors for the emergence of a self-Q-switching phenomenon in diode-pumped Yb:KGW lasers. In addition to the output transmission, it is found that the mode-to-pump size ratio is a critical factor leading to the self-Q-switching. The region of the cavity mode volume without overlapping the pump volume plays a role of modulation loss to result in self-Q-switching. With an output transmission of 4% and a mode-to-pump size ratio of approximately 1.2, simultaneous self-Q-switching and self-mode-locking with the repetition rate of 23.1 GHz were experimentally observed. At an incident pump power of 9.2 W, the maximum pulse energy was estimated to be 1.4 μJ at the repetition rate of 880 kHz with an average output of 1.27 W.

KW - diode-pumped

KW - mode locking

KW - Q-switching

KW - ytterbium laser

KW - SOLID-STATE LASERS

KW - REPETITION-RATE

KW - MODE

KW - OPTIMIZATION

KW - OPERATION

KW - DESIGN

KW - YB3+

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SN - 0792-1233

VL - 24

JO - IEEE Journal of Selected Topics in Quantum Electronics

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ER -

Exploring the Emergence of the Self-Q-Switching in Diode-Pumped Yb:KGW Monolithic Lasers

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Keywords

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