應用於溫度分布調整器達成可調式光波長塞取多工器及低色散濾波器之研究

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應用於溫度分布調整器達成可調式光波長塞取多工器及低色散濾波器之研究

Tunable Optical Add-Drop Multiplexer and Low Dispersion filter with Temperature Distribution Adjustment

陳彥憲 , Masters　　Advisor：黃振發　　

英文

光波長塞取多工器；相位型光纖光柵； OADM ； phase-shift FBG

Abstract │ Reference (27) │ Altmetrics

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The use of a Wavelength-division multiplexing (WDM) based communication system allows for better utilization of the spectral bandwidth resources available to the system. The Optical Add-Drop Multiplexer (OADM) is very important component in the system and the main function is the selective wavelength. In OADMs configuration, it is usually design to add and drop fixed wavelength channels. However, we will propose a new simplified and low-cost configuration based on tunable OADM with thermal controller. In addition, the low dispersion filter is also obtained by the temperature distribution.
When the transmission capacity in the system want to be increased, the transmission bandwidth must drop for 0.8 nm to 0.4 nm or more narrow such as Dense Wavelength-division multiplexing (DWDM). Then, the passband of a phase-shift FBG can be smaller than 10 pm. The phase-shift FBG will become an important component because it has applied to the distributed feedback (DFB) fiber lasers, tunable loss filters and so on. The study has proposed a synthesis technique for the reconstruction of the multiple parameters using a genetic algorithm and two thermally modulated intensity spectra.

Reference ( 27 ) 〈TOP〉

[1] H. Lee and G. P. Agrawal, "Purely Phase-Sampled Fiber Bragg Gratings for Broad-Band Dispersion and Dispersion Slope Compensation," IEEE Photon. Technol. Lett., vol. 15, no. 8, pp. 1091-1093, Aug. 2003.
連結：
[2] C. Marra, A. Nirmalathas, D. Novak, C. Lim, L. Reekie, J. A. Besley, C. Weeks, and N. Baker, "Wavelength-Interleaved OADMs Incorporating Optimized Multiple Phase-Shifted FBGs for Fiber-Radio Systems," J. Lightwave Technol., vol. 21, no. 1, pp. 32-39, Jan. 2003.
連結：
[3] H. Lee and G. P. Agrawal, "Add-Drop Multiplexers and Interleavers with Broad-Band Chromatic Dipersion Compensation Based on Purely Phase-Sample Fiber Gratings," IEEE Photon. Technol. Lett., vol. 16, no.2, Feb. 2004.
連結：
[4] L. Eldada, R. Blomquist, M. Maxfield, D. Pant, G. Boudoughian, C. Poga, R. A. Norwood, "Thermooptic Planar Bragg Gratings OAMD’s with Braod Tuning Range," IEEE. Photon. Technol. Lett., vol. 11, no. 4, Apr. 1999.
連結：
[5] J. Skaar, and O. H. Waagaard, "99.9% Reflectivity Dispersion-less Square-Filter Fiber Bragg Gratings for High Speed DWDM Networks," in Proc. Optical Fiber Communication Conf., Baltimore, MD, vol. 4, pp.230-232, March 2000.
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