Tunable Microwave Generation Using a Phase-Shifted Chirped Fiber Bragg Grating

被引：27

作者：

Lin, Bo ^{[1
]}

Jiang, Meng ^{[2
]}

Tjin, Swee Chuan ^{[1
]}

Shum, Ping ^{[2
]}

机构：

[1] Nanyang Technol Univ, Photon Res Ctr, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Network Technol Res Ctr, Singapore 637553, Singapore

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2011年 / 23卷 / 18期

关键词：

Chirped; dual-wavelength fiber laser; fiber Bragg grating (FBG); phase-shifted; tunable microwave; SIMPLE LINEAR CAVITY; PHOTONIC GENERATION; RING LASER; FILTER; SIGNALS;

D O I：

10.1109/LPT.2011.2160253

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 present a dual-wavelength single-longitudinal-mode erbium-doped fiber ring laser, incorporating a chirped fiber Bragg grating (CFBG) with a permanent pi phase shift and a temporary pi phase shift to form two passbands in the stopband of the grating. A thermal head induces the temporary phase shift which can move along the length of the CFBG to tune the position of the phase shift. This enables the wavelength spacing between the two passbands to be tunable thus allowing the microwave output frequency to be tunable when the two output lasing lines are heterodyned at the photodetector. Using this technique, microwave frequencies ranging from 6.88 to 36.64 GHz were obtained.

引用

页码：1292 / 1294

页数：3

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