%0 Journal Article %1 6767594 %A Arnaud, J.A %D 1974 %J Bell System Technical Journal, The %K bending %N 7 %P 1379-1394 %R 10.1002/j.1538-7305.1974.tb02795.x %T Transverse coupling in fiber optics part III: Bending losses %U http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6767594&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel7%2F6731005%2F6767587%2F06767594.pdf%3Farnumber%3D6767594 %V 53 %X A general method is proposed to evaluate the radiation loss of bent open waveguides. This method consists in evaluating the coupling between the waveguide mode and the whispering-gallery modes that can be associated with the surrounding medium. The expression obtained for a reactive surface coincides with a previous result by Miller and Talanov.¹ We investigate in detail the radiation loss of the fundamental (HE<inf>11</inf>) mode of a dielectric rod coupled to a slab. This arrangement, described in Part II of this article series,² provides a useful mode-selection technique. The radiation loss is given by a simple closed-form expression. We find that for a wavelength of 1 &#x00B5;m and a rod radius of 5 &#x00B5;m in physical contact with the slab, the bending loss is less than 1 dB/km if the radius of curvature, in the plane of the slab, exceeds 22 mm.

@article{6767594, abstract = {A general method is proposed to evaluate the radiation loss of bent open waveguides. This method consists in evaluating the coupling between the waveguide mode and the whispering-gallery modes that can be associated with the surrounding medium. The expression obtained for a reactive surface coincides with a previous result by Miller and Talanov.¹ We investigate in detail the radiation loss of the fundamental (HE<inf>11</inf>) mode of a dielectric rod coupled to a slab. This arrangement, described in Part II of this article series,² provides a useful mode-selection technique. The radiation loss is given by a simple closed-form expression. We find that for a wavelength of 1 &#x00B5;m and a rod radius of 5 &#x00B5;m in physical contact with the slab, the bending loss is less than 1 dB/km if the radius of curvature, in the plane of the slab, exceeds 22 mm.}, added-at = {2014-07-17T12:58:19.000+0200}, author = {Arnaud, J.A}, biburl = {https://www.bibsonomy.org/bibtex/2f91902512f9e8eca03f8baea34d7da82/emmamryan}, description = {IEEE Xplore Abstract - Transverse coupling in fiber optics part III: Bending losses}, doi = {10.1002/j.1538-7305.1974.tb02795.x}, interhash = {2b6174fbc7aeda82eca1a6ac9099b7c2}, intrahash = {f91902512f9e8eca03f8baea34d7da82}, issn = {0005-8580}, journal = {Bell System Technical Journal, The}, keywords = {bending}, month = {Sept}, number = 7, pages = {1379-1394}, timestamp = {2014-07-17T12:58:19.000+0200}, title = {Transverse coupling in fiber optics part III: Bending losses}, url = {http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6767594&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel7%2F6731005%2F6767587%2F06767594.pdf%3Farnumber%3D6767594}, volume = 53, year = 1974 }