Role of modulation frequency in a hybrid Q-switched Nd:LuVO4laser with an acousto-optic modulator and a Cr4+:YAG saturable absorber

Ting Wei Chen; Ken Chia Chang; Jia Chi Chen; Ja Hon Lin; Ming Dar Wei

doi:10.1364/AO.53.003459

Role of modulation frequency in a hybrid Q-switched Nd:LuVO₄laser with an acousto-optic modulator and a Cr⁴⁺:YAG saturable absorber

Ting Wei Chen, Ken Chia Chang, Jia Chi Chen, Ja Hon Lin, Ming Dar Wei

Department of Photonics

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

15 Citations (Scopus)

Abstract

This study presents a hybrid Q-switched Nd:LuVO₄laser with an acousto-optic modulator (AOM) and a Cr⁴⁺:YAG saturable absorber. The importance of the modulation frequency of the AOM in this dual-loss modulation system is examined with two distinct observations: (1) the periodic-ramp pulse characteristics with the modulation frequency, and (2) the existence of the intrinsic modulation frequency for minimizing the pulsewidth. The shortest pulsewidth and the highest peak power were 10.6 ns and 13.9 kW, respectively, at a pump power of 10 W. Compared with the passively Q-switched laser, which has a pulsewidth of 18.3 ns, the ratio of pulse compression reaches 42%. Finally, numerical simulations based on the rate equations are used to verify the experimental results.

Original language	English
Pages (from-to)	3459-3464
Number of pages	6
Journal	Applied optics
Issue number	16
DOIs	https://doi.org/10.1364/AO.53.003459
Publication status	Published - 2014 Jun 1

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.53.003459

Cite this

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title = "Role of modulation frequency in a hybrid Q-switched Nd:LuVO4laser with an acousto-optic modulator and a Cr4+:YAG saturable absorber",

abstract = "This study presents a hybrid Q-switched Nd:LuVO4laser with an acousto-optic modulator (AOM) and a Cr4+:YAG saturable absorber. The importance of the modulation frequency of the AOM in this dual-loss modulation system is examined with two distinct observations: (1) the periodic-ramp pulse characteristics with the modulation frequency, and (2) the existence of the intrinsic modulation frequency for minimizing the pulsewidth. The shortest pulsewidth and the highest peak power were 10.6 ns and 13.9 kW, respectively, at a pump power of 10 W. Compared with the passively Q-switched laser, which has a pulsewidth of 18.3 ns, the ratio of pulse compression reaches 42%. Finally, numerical simulations based on the rate equations are used to verify the experimental results.",

author = "Chen, {Ting Wei} and Chang, {Ken Chia} and Chen, {Jia Chi} and Lin, {Ja Hon} and Wei, {Ming Dar}",

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AU - Chen, Ting Wei

AU - Chang, Ken Chia

AU - Chen, Jia Chi

AU - Lin, Ja Hon

AU - Wei, Ming Dar

PY - 2014/6/1

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AB - This study presents a hybrid Q-switched Nd:LuVO4laser with an acousto-optic modulator (AOM) and a Cr4+:YAG saturable absorber. The importance of the modulation frequency of the AOM in this dual-loss modulation system is examined with two distinct observations: (1) the periodic-ramp pulse characteristics with the modulation frequency, and (2) the existence of the intrinsic modulation frequency for minimizing the pulsewidth. The shortest pulsewidth and the highest peak power were 10.6 ns and 13.9 kW, respectively, at a pump power of 10 W. Compared with the passively Q-switched laser, which has a pulsewidth of 18.3 ns, the ratio of pulse compression reaches 42%. Finally, numerical simulations based on the rate equations are used to verify the experimental results.

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Role of modulation frequency in a hybrid Q-switched Nd:LuVO₄laser with an acousto-optic modulator and a Cr⁴⁺:YAG saturable absorber

Abstract

All Science Journal Classification (ASJC) codes

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