Optical performance monitoring in 16CH WDM system, using FFP-TF

FFP-TF를 활용한 OPM의 16CH WDM시스템 광 성능 모니터링

  • 이동선 (광운대학교 정보제어공학과 시스템 연구실)
  • Published : 2003.08.01

Abstract

The OPM(optical performance monitoring module) is needed in order to monitor optical performance. the most importance of OPM is to measure the wavelength of optical signal. In the past time, it was very difficult to get the wavelength value because they used pilot tone. Since then, using AWG(arrayed waveguide grating) and AOTF(acousto optic tuneable filter), the wavelength and the transmission qualify for multi channel signal have been monitored. In this paper, we chose the fiber fabry-perot wavelength variable filter which be evaluated for optical resolution ability to excellent, so that FBG(fiber bragg grating) was used for setting reference wavelength because chose a wavelength variable filter.

광성능을 모니터하기 위해 필요한 것이 OPM(optical performance monitoring module)이다. OPM에서 가장 중요한 것은 광 신호의 파장을 측정하는 것이다. 기존에는 pilot tone을 사용하였으므로 파장값을 얻기가 어려웠지만, 그후 AWG(arrayed waveguide grating), AOTF (acousto optic tuneable filter) 등을 사용하여 다채널 신호에 대한 파장과 전송 품질을 모니터하게 되었다. 본 논문에서는 일반적으로 광 분해능이 우수하다고 평가되는 FFP-TF(fiber fabry perot tuneable filter)를 채택하였으며, FFP-TF를 사용하기 때문에 필요한 기준파장의 설정을 위하여 광섬유격자(FBG : fiber bragg grating)를 사용하였다.

Keywords

References

  1. IEEE J.Lightwave Tech. v.14 Performance of Multi wavelength Simultaneous Monitoring Circuit Employing AWG Mitsuhiro Teshima;Masafumi Koga;Ken-Ich Sato
  2. Proc,IEEE Global telecommun.conf(GLOBECOM'93) Optical path cross-connect systems photonic transport networks S.Okamoto;K.Sato
  3. J.Lighwave Tecnol. v.14 Design and performance of an optical path cross-connect system based on wave length path conecpt M.Koga;Y.Hamazumi;A.W.Watanabe;S.O.Kamoto;H.ObaIa;K.Sato;M.Okuno;S.Su Zuki
  4. Proc. IEEE Global telecommun conf.(GLOBECOM'90) Broadband information distribution networks employing optical frequency division multiplexing technologies H.Toba;K.Oda;K.Nakanishi;N.shibata;K.Nosu
  5. IEEE J. select. areas commun. v.12 Networks performance and integrity enhancement with optical path layer technologies K.Sato;S.Okamoto;H.Hadama
  6. J.lighwave technol v.13 Transmission characteristics of arrayed waveguide N × N wavelength multiplexer H.Takahashi;K.Oda;H.Toba;Y.Inoue