Novel Multiple-frequency Q-switched Fiber Laser by using chirped fiber Bragg grating Fabry-Perot etalon

被引：0
|
作者：
Cheng, X. P. [1 ]
Shum, P. [1 ]
Tse, C. H. [1 ]
Wu, R. F. [2 ]
Tan, W. C.
机构：
[1] Nanyang Technol Univ, Network Technol Res Ctr, 50 Nanyang Dr, Singapore 637553, Singapore
[2] DSO Natl Labs, Singapore 118230, Singapore
来源：
FIBER LASERS V: TECHNOLOGY, SYSTEMS, AND APPLICATIONS | 2008年 / 6873卷
关键词：
fiber lasers; fiber Bragg grating; Q-switched lasers; PZT ceramics;
D O I：
10.1117/12.762435
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose a novel approach to increase the repetition rate of all-fiber Q-switched laser. This proposed ring cavity fiber laser consists of a fiber Bragg grating (FBG) functions as the wavelength discriminator and a chirped FBG Fabry-Perot (FP) etalon serve as the transmission filter inside the ring cavity. The Q-switching operation is achieved by periodically tuning of the FP etalon and hence modulating the loss of the cavity. A numerical model is developed to simulate this type fiber ring laser with consideration of FBGs' spectra. Our simulation shows that the repetition rate of the Q-switched pulse can be increased by multiple times that depend on the tuning range and the bandwidth of the chirped FBG FP etalon. Experimentally we achieved 14 kHz Q-switched pulses under 3.5 kHz PZT modulation frequency.
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页数：10
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