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Study Of Thermal Stability Performance Of Fabry-perot Etalon

Posted on:2015-09-20Degree:MasterType:Thesis
Country:ChinaCandidate:Q Y YanFull Text:PDF
GTID:2298330452459745Subject:Optical Engineering
Abstract/Summary:PDF Full Text Request
Optical Fabry-Perot etalon is mainly used in the channel choosing of optical fibercommunication, wavelength lock and monitor. It includes interleaver, dispersioncompensation device, wavelength locker, tunable laser and so on. With the rapiddevelopment of modern optical communication technology, there are higherrequirements for the capacity and speed of communication, which requires the devicesthat were used in the optical communication network should have higher stability. Thetemperature stability of normal Etalon’s wavelength is around5pm/degree undertemperature control and it can’t be stable through a long time. The temperaturestability is not so good. So the etalon which have higher stability without the device oftemperature control and could be stable through a long period of time will fit therequirements of higher speed communication better and it has wide application andmarket.The main direction of this article is the research of optical Fabry-Perot etalonand how to optimize the performance of temperature drift. The first part gives us abrief introduction of the development and current application of Optical Fabry-Perotetalon as well as the development status at home and abroad and the main problemsfacing today, discussed the interferencebasic principle of the parallel plate’sMultiple-beam fringe and the key specification of the Optical Fabry-Perot etalon,analyzing the transmission characteristics theoretically of Fabry’s interference. Andfor the Optical Fabry-Perot etalon’s temperature drift, which are analyzed andcalculated, the primary research of the material’s refractive index and the thickness ofthe plate, calculating the drift of central wave-length of an etalon when thetemperature changed70deg. For the solid etalon, we researched the angle between theincidence beam and the C axis of the crystal, and using the LiSAF material, design thedirectional angle and the coating parameter, and manufactured the angle of38.2°solid etalon, testing the solid etalon’s center wavelength, the temperature drift is only0.2875pm/deg, the stability is improved dramatically. For the air space etalon, Iintroduced how to improve the performance of temperature drift of different structuresof Optical Fabry-Perot etalons through designation of etalons, production of real parts,methods of testing and analysis of the date of experiments which fits the theoreticalcalculation well. The temperature drift is only0.0675pm/deg, it’s improvedobservably.
Keywords/Search Tags:Fabry-Port Etalon, Temperature Drift, Interference, Stability
PDF Full Text Request
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