Two-mode fiber modal coupler.
作者： R. C. Youngquist , J. L. Brooks , H. J. Shaw
DOI: 10.1364/OL.9.000177
关键词:
摘要: When a single-mode fiber is used at wavelength below the cutoff wavelength, guides second-order modes, which travel different phase velocities from fundamental mode. Periodically stressing this two-mode once per beat length can cause coherent coupling between modes. Such modal coupler has been developed and described here. Coupling to one of modes achieved, leaving less than -40-dB residual power in Two couplers have mounted on single strand construct Mach-Zehnder interferometer with better 30-dB on/off ratio. The polarization sensitive be as an in-line polarizer. A 36-dB extinction ratio polarizations observed.
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harvard.edu参考文章(6)
Yukata Katsuyama, Single-mode propagation in 2-mode region of optical fibre by using mode filter Electronics Letters. ,vol. 15, pp. 442- 444 ,(1979) , 10.1049/EL:19790317
R. C. Youngquist, J. L. Brooks, H. J. Shaw, Birefringent-fiber polarization coupler. Optics Letters. ,vol. 8, pp. 656- 658 ,(1983) , 10.1364/OL.8.000656
H.C. Lefevre, Single-mode fibre fractional wave devices and polarisation controllers Electronics Letters. ,vol. 16, pp. 778- 780 ,(1980) , 10.1049/EL:19800552
R. C. Alferness, L. L. Buhl, Waveguide electro‐optic polarization transformer Applied Physics Letters. ,vol. 38, pp. 655- 657 ,(1981) , 10.1063/1.92494
D. Gloge, Weakly guiding fibers. Applied Optics. ,vol. 10, pp. 2252- 2258 ,(1971) , 10.1364/AO.10.002252
S. E. Miller, On Solutions for Two Waves with Periodic Coupling Bell System Technical Journal. ,vol. 47, pp. 1801- 1822 ,(1968) , 10.1002/J.1538-7305.1968.TB00103.X