A flat microwave photonic filter based on M-Z modulator and fiber Bragg grating

Abstract

A new multiple-taps and flat microwave photonic filter, which is composed of fiber Bragg grating, M-Z modulator and erbium-doped fiber, is put forward. The flat band-pass or flat band-stop response can be realized by adjusting the coupler’s factor and the reflectivity of the fiber Bragg grating or the gain of the erbium-doped fiber. The free spectral range of the filter can be tuned by controlling the length of the erbium-doped fiber. The potential and feasibility of the proposed filtering structures have been demonstrated by simulation.

Keywords

Coupler / Fiber Bragg Grating / Wavelength Division Multiplexer / Free Spectral Range / Electronics Letter

References

[1] CapmanyJ., NovakD.. Nature Photonics, 2007, 1: 319

[2] CapmanyJ., PastorD., OrtegaB.. Electronics Letters, 1999, 35: 640

[3] JinyueL., HaoC., XianminZ.. The Theoertical and Experimental Study on Photonic Microwave filter (graduate paper), 2006, Hangzhou, Zhejiang University

[4] ChiH., ZhangX., et al.. Journal of Optoelectronics·Laser, 2006, 17: 17

[5] zhangW., WilliamsJ. A. R.. Electronics Letters, 1999, 35: 1010

[6] B. A. L. Gwandu. W. zhang, and J. A. R. Williams. Microwave Photonics, (2002), 113.

[7] D. B. Hunter, and R. A. Minasian., OFC’97, 1997, 340.

[8] GongY., NingG., DongH., et al.. ECOC, 2005, 3: 631

[9] TaylorJ. D., ChenL. R., et al.. IEEE Photonics Technology Letters, 2007, 19: 510

[10] W. Zhang, J. A. R. Williams, et al., I. Zhang, CLEO’ 2000, 330.