Band-pass filter with flat time delay response based on fiber grating Sagnac loop

Shu, Xuewen, Sugden, Kate, Zhao, Donghui, Zhang, Lin and Bennion, Ian (2002). Band-pass filter with flat time delay response based on fiber grating Sagnac loop. IN: Optical Fiber Communication Conference and Exhibit. OFC 2002. IEEE.


We have developed the analytic expressions for the phase response and time delay of FBGSL of arbitrary grating structure and found that the results from the modelling are in excellent agreement with that of the experimentally measured real devices. The theoretical and experimental investigation clearly reveals that FBGSLs utilizing uniform and linearly chirped gratings exhibit a near-constant time delay in the passbands. Such multi-channel bandpass filters should be highly attractive to WDM applications as they are operating in transmission regime and offering near-zero dispersion.

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Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
Event Title: Optical Fiber Communication Conference and Exhibit
Event Type: Other
Event Dates: 2002-03-17 - 2002-03-22
Uncontrolled Keywords: band pass filters,bragg gratings,chirp,chirp modulation,delays,delay effects,fiber gratings,optical fiber devices,optical fiber dispersion,passband,phase measurement,pagnac,fibre dispersion,optical fibre filters,optical modulation,wavelength division multiplexing,FBGSL,WDM applications,analytic expressions,arbitrary grating structure,fiber grating Sagnac loop,linearly chirped gratings,modelling,multi-channel bandpass filters,near zero dispersion,near-constant passband time delay,phase response,time delay,transmission regime,uniform chirped gratings,Computer Science(all),Engineering(all)
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Published Date: 2002
Authors: Shu, Xuewen
Sugden, Kate ( 0000-0001-6323-1082)
Zhao, Donghui
Zhang, Lin ( 0000-0002-1691-5577)
Bennion, Ian

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