Waveguides ribbed

L. Vivien, S. Laval, B. Dumont, S. Lardenois, A. Koster, and E. Kassan, "Polarization independent single mode rib waveguides on silicon-on-insulator for telecommunications wavelengths," Opt. Commun. 210, 43-49 (2002). 

Tai, C.-Y., Unal, B., Wilkinson, IS., Ghanem, M.A., and Bartlett, P.N., 2004, Optical coupling between a self-assembled microsphere grating and a rib waveguide, Appl. Phys. Lett,84(18) 3513-3515. 

An example of the vectorial field distribution of the quasi-TEoo mode of a rib waveguide with a comparatively large refractive index profile is shown in Fig. 6. 

Figure 6. Vertical (left) and horizontal (right) magnetic field components of the quasi-TEoo mode of the rih waveguide. Refractive indexes of the substrate, the guiding layer and the superstate are 1.9, 2.2 and 1.0, respectively, the rib width and height are 1 pm and 0.5 pm, respectively, the wavelength is 1.3 pm.

W. Pascher, Modelling of rib waveguide bends for sensor applications, Opt. Quantum Electron. 33, 433-449 (2001). 

P. C. Kendall, et ah, Theory for calculating approximate values for the propagation constants of an optical rib waveguide by weighting the refractive indices, lEE Proceedings A 134, 699-702 (1987). 

C. J. Smartt, et ah, Exact polarised rib waveguide analysis. Electronics Letters 30, 1127-1128 (1994). 

On the other hand, deposition-based waveguides usually have a squarelike geometry in a strip, a strip-loaded or a rib configuration (Fig. 6). They are fabricated by depositing several layers onto a planar substrate by means of microelectronic processes, covering and etching them until the final geometry is obtained. 

The basic structure is composed by a rib ARROW waveguide (as the input waveguide), an open region, where the bulk optode is deposited (as the... 

Fig. 6 Different types of channel waveguides - from left to right, ion-exchange, channel, ribbed, ARROW...

Fig. 5.8. (a) MZI configuration (b) Structure of a MZI biosensor device based on TIE waveguides. Note the dimensions of the rib channel (4 nm) for monomode and high sensitivity waveguides. 

Fig. 20a,b. Far field mode pattern the upper spot with a long stripe line is the slab-mode pattern and the lower one is the rib of waveguiding propagation mode (a), and output intensity modulation as a function of applied DC voltage (b)... 

Figure 20. (A) Cross-section refractive index profile for typical rib waveguide, (B) output optical field (632 nm).distribution radiate from the end of rib channel waveguide, (C) optical far field distribution for rib channel waveguide calculated in RSOFT software.

Robertson, M. J., Ritchie, S., and Dayan, R, Semiconductor waveguides analysis of optical propagation in single rib structures and directional couplers, lEE Proc., 132(Pt. J), 336 (1985). 

Madden S. J. and Vu K. T, Very low loss reactively ion etched Tellurium Dioxide planar rib waveguides for linear and non-linear optics. Opt. Express, 17,17645-17651 (2009). 

Vu K. and Madden S., Tellurium dioxide Erbium doped planar rib waveguide amplifiers with net gain and 2.8dB/cm internal gain. Opt Express, 18,19192-19200 (2010). 

The most common film is Si02-Ti02 composite [209,210]. Karasinski et al. have used these films to obtain strip waveguides and rib channel waveguides [211,212]. 

Karasinski, P., Tyszkiewicz, C., Rogozinski, R Jagiarz, J., and Maziu, J. (2011) Optica) rib waveguides based on soi-gel derived silica-titania films. Thin Solid Films, 519, 5544-5551. 

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