A variable coefficient microwave photonic filter based on multi-wavelength fiber laser and Mach-Zehnder interferometer

Abstract

A microwave photonic filter (MPF) with variable coefficient is proposed and demonstrated, which is constructed by a multi-wavelength fiber laser and Mach-Zehnder interferometer (MZI). Through changing the slope characteristics of Mach-Zehnder interference spectrum adjusted by optical variable delay line (OVDL), the conversion from phase modulation (PM) to intensity modulation (IM) is realized. The multi-wavelength fiber laser with Lyot-Sagnac optical filter has variable wavelength spacing. So the designed filter has a variable number of taps and tap weights. As a result, the tunable range of passband center frequency is 2.6 GHz. The reconfigurability of MPF can be also realized by adjusting the output of fiber laser.

Keywords

Fiber Laser / Single Mode Fiber / Radio Frequency Signal / Wavelength Spacing / IEEE Photonic Technology Letter

References

[1] WeiZ-h, WangR, FangT, PuT, SunG-d, ZhengJ-l. Journal of Optoelectronics ·Laser, 2013, 24: 1086

[2] ZhangC, YanL-s, PanW, LuoB, ZouX-h, JiangH-y, LuB, ZhouT. Journal of Optoelectronics·Laser, 2013, 24: 1662

[3] LiL, ThomasX H. Huang and Robert Minasian, IEEE Photonics Technology Letters, 2014, 26: 82

[4] FengX, LuC, TamH Y, WaiP K A. IEEE Photonics Technology Letters, 2007, 19: 1334

[5] FengX, TamH-y, WaiP K A. Optics Express, 2006, 14: 8205

[6] ZhouJ, FuS, LuanF, WongJ H, AdityaS, ShumP P, LeeK E K. Journal of Lightwave Technology, 2011, 29: 3381

[7] Abreu-AfonsoJ, DíezA, CruzJ L, AndrésM V. IEEE Photonics Technology Letters, 2012, 24: 2129

[8] JiangY, ShumP P, ZuP, ZhouJ, BaiG, XuJ, ZhouZ, LiH, WangS. IEEE Photonics Journal, 2013, 5: 5500509

[9] HuangT X H, YiX, MinasianR A. Optics Express, 2011, 19: 6231

[10] WangJ, ZengF, YaoJ. IEEE Photonics Technology Letter, 2005, 17: 2176

[11] ZengF, YaoJ. Journal of Lightwave Technology, 2005, 23: 1721

[12] HanY-G, KimG, LeeJ H, KimS H, LeeS B. IEEE Photonics Technology Letters, 2005, 17: 989

Just Accepted

This article has successfully passed peer review and final editorial review, and will soon enter typesetting, proofreading and other publishing processes. The currently displayed version is the accepted final manuscript. The officially published version will be updated with format, DOI and citation information upon launch. We recommend that you pay attention to subsequent journal notifications and preferentially cite the officially published version. Thank you for your support and cooperation.