Multichannel comb filter based on linearly chirped fiber Bragg grating and DC phase shift

• Autorzy: Sun G. , Wang R. , Pu Tao , Wang Hongbo , Wei Zhihu
• Języki publikacji: EN

Abstrakty

EN

A novel approach to implement high channel-count comb filters based on a DC phase shift is proposed. Various channel spacings can be achieved by a single chirped phase mask and a submicrometer-precision translation stage. Simulation and experiment show that arbitrary phase shifts introduced by DC refractive index modulation can be achieved. An multichannel comb filter with channel spacing of 100 GHz, 50 GHz and 40 GHz is implemented with the same phase mask. A comparison between the proposed DC phase shift and traditional discrete phase shift is made.

Słowa kluczowe

EN

optical communications; fiber Bragg grating (FBG); comb filter; DC refractive index modulation; phase shift

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2011
• Tom: Vol. 41, nr 4
• Strony: 791--797
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Sun G.

autor

Wang R.

autor

Pu Tao

autor

Wang Hongbo

autor

Wei Zhihu

Bibliografia

• [1] LI H.P., LI M., SHENG Y.L., ROTHENBERG J.E., Advances in the design and fabrication of high-channel--count fiber Bragg gratings, Journal of Lightwave Technology 25(9), 2007, pp. 2739–2750.
• [2] LIU X.M., Tunable ultranarrow dual-channel filter based on sampled FBGs, Journal of Lightwave Technology 26(13), 2008, pp. 1885–1890.
• [3] BURYAK A.V., KOLOSSOVSKI K.Y., STEPANOV D.YU., Optimization of refractive index sampling for multichannel fiber Bragg gratings, IEEE Journal of Quantum Electronics 39(1), 2003, pp. 91–98.
• [4] NASU Y., YAMASHITA S., Densification of sampled fiber Bragg gratings using multiple-phase-shift (MPS) technique, Journal of Lightwave Technology 23(4), 2005, pp. 1808–1817.
• [5] MAGNÉ J., AZAÑA J., LAROCHELLE S., CHEN L.R., Simple technique for eliminating the interchannel phase fluctuations in spectral Talbot-based periodic comb filters, Photonics Technology Letters 18(18), 2006, pp. 1958–1960.
• [6] ZOU X.H., PAN W., LUO B., QIN Z.M., WANG M.Y., ZHANG W.L., Periodically chirped sampled fiber Bragg gratings for multichannel comb filters, Photonics Technology Letters 18(12), 2006, pp. 1371–1373.
• [7] CHEN X.-F., FAN C.-C., LUO Y., XIE S.-Z., HU S., Novel flat multichannel filter based on strongly chirped sampled fiber Bragg grating, Photonics Technology Letters 12(11), 2000, pp. 1501–1503.
• [8] CHEN X., MAO J., LI X., LIN Z., XIE S., FAN C., High-channel-count comb filter with a simple structure, OFC 2004, Los Angeles, CA, Paper TuD2.
• [9] CHINHUA WANG, AZANA J., CHEN L.R., Efficient technique for increasing the channel density in multiwavelength sampled fiber Bragg grating filters, Photonics Technology Letters 16(8), 2004, pp. 1867–1869.
• [10] YITANG DAI, XIANGFEI CHEN, XIMING XU, CHONGCHENG FAN, SHIZHONG XIE, High channel-count comb filter based on chirped sampled fiber Bragg grating and phase shift, Photonics Technology Letters 17(5), 2005, pp. 1040–1042.