Documents dont l'auteur est "Najafi, S. Iraj"

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Nombre de documents: 89

A

Alavian, S., Touam, T., & Najafi, S. I. (2000). Analysis of integrated photonics devices by a new simplified propagation method. Journal of optical communications, 21(2), 60-65. Lien externe

Andrews, M. P., Saravanamuttu, K., & Najafi, S. I. (juillet 1998). Light induced densification and mechanisms in hybrid sol-gel glasses for photonic devices [Communication écrite]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. Lien externe

Andrews, M. P., & Najafi, S. I. (juillet 1997). Passive and active sol gel materials and devices [Communication écrite]. Sol-gel and polymer photonic devices Conference, San Diego, CA. Publié dans Critical reviews of optical science and technology, 68. Non disponible

Andrews, M. P., & Najafi, S. I. (juillet 1997). Passive and active sol-gel materials and devices [Communication écrite]. Sol-Gel and Polymer Photonic Devices: A Critical Review, San Diego, CA, USA. Lien externe

Andrews, M. P., Kanigan, T., & Najafi, S. I. Auto-embossed Bragg gratings from self-organizing polymers: chemical tuning of periodicity and photoinduced anisotropy [Communication écrite]. Functional Photonic and Fiber Devices. Lien externe

Auger, P. L., & Najafi, S. I. (1994). New method to design directional coupler dual wavelength multi/demultiplexer with bends at both extremities. Optics Communications, 111(1-2), 43-50. Lien externe

Auger, P. L., & Najafi, S. I. (1994). Potassium- and silver-double-ion-exchanged slab glass waveguides: characterization and modeling. Applied Optics, 33(16), 3333-3337. Lien externe

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Blanc, D., Pelissier, S., Najafi, S. I., & Andrews, M. P. (septembre 1999). Efficient surface gratings in hybrid sol-gel glasses [Communication écrite]. Optical devices for fiber communication. Conference, Boston, MA, USA. Lien externe

Blanc, D., Pelissier, S., Saravanamuttu, K., Najafi, S. I., & Andrews, M. P. (1999). Self-Processing of Surface-Relief Gratings in Photosensitive Hybrid Sol-Gel Glasses. Advanced Materials, 11(18), 1508-1511. Lien externe

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Coudray, P., Etienne, P., Porque, J., Moreau, Y., & Najafi, S. I. (janvier 1998). Integrated optical devices achieved by sol-gel process [Communication écrite]. Integrated Optic Devices II, San Jose CA, USA. Lien externe

Coudray, P., Etienne, P., Moreau, Y., Porque, J., & Najafi, S. I. (1997). Sol-gel channel waveguide on silicon: fast direct imprinting and low cost fabrication. Optics Communications, 143(4-6), 199-202. Lien externe

Coudray, P., Chisham, J., Andrews, M. P., & Najafi, S. I. (1997). Ultraviolet light imprinted sol-gel silica glass low-loss waveguides for use at 1.55 um. Optical Engineering, 36(4), 1234-1240. Lien externe

Chisham, J. E., Andrews, M. P., Li, C.-Y., Najafi, S. I., & Malek-Tabrizi, A. Gratings fabrication by ultraviolet light imprinting and embossing in a sol-gel silica glas [Communication écrite]. Functional Photonic and Fiber Devices. Lien externe

Coudray, P., Chisham, J., Malek-Tabrizi, A., Li, C.-Y., Andrews, M. P., Peyghambarian, N., & Najafi, S. I. (1996). Ultraviolet light imprinted sol-gel silica glass waveguide devices on silicon. Optics Communications, 128(1-3), 19-22. Lien externe

Coudray, P., Chisham, J. E., Malek-Tabrizi, A., Li, C.-Y., Andrews, M. P., & Najafi, S. I. (janvier 1996). UV-light-imprinted sol-gel silica glass waveguide 1x8 beam splitter on silicon [Communication écrite]. Functional Photonic and Fiber Devices, San Jose, CA, USA. Lien externe

Chen, J. Y., & Najafi, S. I. (1994). Adiabatic polymer-glass-waveguide all-optical-switch. Applied Optics, 33(16), 3375-3383. Lien externe

Chen, J. Y., & Najafi, S. I. (avril 1994). Y-branch polymer-glass-waveguide all-optical switch [Communication écrite]. Linear and Nonlinear Integrated Optics, Lindau, Germany. Lien externe

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Dalacu, D., Brown, A. C., Sapieha, J.-E., Martinu, L., Wertheimer, M. R., Najafi, S. I., & Andrews, M. A. (novembre 1998). Characterization of plasma-deposited Au/fluoropolymer nanocomposite films for nonlinear optical application [Communication écrite]. 1998 MRS Fall Meeting: Symposium on Plasma Deposition and Treatment of Polymers, Boston, MA. Publié dans Materials Research Society Symposium - Proceedings, 544. Lien externe

Du, X. M., Touam, T., Degachi, L., Guilbault, J. L., Andrews, M. P., & Najafi, S. I. (1998). Sol-Gel Waveguide Fabrication Parameters: an Experimental Investigation. Optical Engineering, 37(4), 1101-1104. Lien externe

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Farfad, M. A., Najafi, S. I., & Andrews, M. P. (2000). Solvent-assisted lithographic process using photosensitive sol-gel derived glass for depositing ridge waveguides on silicon. (Brevet no US6054253). Lien externe

Fardad, A., Andrews, M., Milova, G., Malek-Tabrizi, A., & Najafi, S. I. (1998). Fabrication of Ridge Waveguides: a New Solgel Route. Applied Optics, 37(12), 2429-2434. Lien externe

Fardad, M. A. (janvier 1998). SBN photonic devices [Communication écrite]. Integrated Optic Devices II, San Jose CA, USA. Lien externe

Fournier, P., Meshkinfam, P., Fardad, M. A., Andrews, M. P., & Najafi, S. I. (mai 1997). Potassium ion-exchanged Er-doped phosphate glass integrated optics amplifier [Communication écrite]. 1997 Conference on Lasers and Electro-Optics, CLEO, Baltimore, MD, USA. Lien externe

Fardad, M. A., Touam, T., Meshkinfam, P., Sara, R., Du, X. M., Andrews, M. P., & Najafi, S. I. (1997). UV-light imprinted Bragg grating in sol-gel ridge glass waveguide with almost 100% reflectivity. Electronics Letters, 33(12), 1069-1070. Lien externe

Fardad, M. A., Andrews, M. P., & Najafi, S. I. Novel sol-gel fabrication of integrated optical waveguides [Communication écrite]. Integrated Optics Devices : Potential for Commercialization. Lien externe

François, V., Ohtsuki, T., Peyghambarian, N., & Najafi, S. I. (février 1995). Fabrication and characterization of ion-exchanged neodymium-doped glass waveguide lasers [Communication écrite]. Functional Photonic Integrated Circuits, San Jose, CA, USA. Lien externe

François, V., Ohtsuki, T., Peyghambarian, N., & Najafi, S. I. (1995). Length optimization of single-mode rare-earth doped waveguides using saturated absorption. IEEE Photonics Technology Letters, 7(8), 872-874. Lien externe

François, V., Ohtsuki, T., Peyghambarian, N., & Najafi, S. I. (1995). Thermally silver ion exchanged integrated-optic lasers in neodymium-doped silicate glass. Optics Communications, 119(1-2), 104-108. Lien externe

François, V., Najafi, S. I., Ohtsuki, T., Peygambarian, N., Honkanen, S., Lafrenière, S., & Andrews, M. P. Progress toward realization of rare-earth-doped glass integrated-optics lasers [Communication écrite]. Nanofabrication Technologies and Device Integration. Lien externe

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Gurney, J. A., Vargas-Baca, I., Andrews, M. P., Brown, A. C., & Najafi, S. I. (juillet 1998). Azo-dye hybrid sol-gel glass composites for optoelectronics [Communication écrite]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. Lien externe

Guerreiro, P. T., Lee, S. G., Rodrigues, A. S., Hu, Y. Z., Wright, E. M., Najafi, S. I., Mackenzie, J., & Peyghambarian, N. (1996). Femtosecond pulse propagation near a two-photon transition in a semiconductor quantum-dot waveguide. Optics Letters, 21(9), 659-661. Lien externe

Guangwen, Z., Honkanen, S., Najafi, S. I., Tervonen, A., & Katila, P. (1994). Ion-exchanged glass waveguide Mach-Zehnder interferometers for wavelength multi/demultiplexing and the effect of thermal post-annealing on spectral transmission. Pure and Applied Optics, 3(5), 907-913. Lien externe

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Honkanen, S., Ohtsuki, T., Jiang, S., Najafi, S. I., & Peyghambarian, N. (février 1997). High Er concentration phosphate glasses for planar waveguide amplifiers [Communication écrite]. Rare-earth-doped devices. Conference, San Jose, CA, USA. Lien externe

Hatami-Hanza, H., & Najafi, S. I. (février 1997). Photon manipulation by means of passive integrated optic circuits [Communication écrite]. Integrated Optics Devices : Potential for Commercialization, San Jose, CA. Lien externe

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Ingenhoff, J., Lefebvre, P., Zhang, W. G., Li, C.-Y., Ross, L., & Najafi, S. I. (février 1995). Minimizing losses in silver ion-exchanged waveguides using a double ion-exchange process [Communication écrite]. Functional Photonic Integrated Circuits, San Jose, CA, USA. Lien externe

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Khazaei, H. R., Wang, W. J., Berolo, E., & Ghannouchi, F. M. (janvier 1998). High speed GaAs/AlGaAs traveling wave electro-optic modulators [Communication écrite]. Integrated Optic Devices II, San Jose CA, USA. Lien externe

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Li, C.-Y., Ingenhoff, J., Najafi, S. I., Chisham, J., MacLachlan, M., Andrews, M. P., Kao, Y.-H., Mackenzie, J. D., Ohtsuki, T., & Peyghambarian, N. (février 1995). Er-doped sol-gel glasses for integrated optics [Communication écrite]. Optoelectronic Integrated Circuit Materials, Physics, and Devices, San Jose, CA, USA. Lien externe

Li, C.-Y., Chisham, J., Andrews, M., Najafi, S. I., Mackenzie, J. D., & Peyghambarian, N. (1995). Sol-gel integrated optical coupler by ultraviolet light imprinting. Electronics Letters, 31(4), 271-272. Lien externe

Li, C.-Y., Kao, Y.-H., Hayashi, K., Takada, T., Mackenzie, J. D., Kang, K.-I., Lee, S.-G., Peyghambarian, N., Yamane, M., Zhang, G.-W., & Najafi, S. I. (juillet 1994). Improving CdS quantum dot materials by the sol-gel method [Communication écrite]. Sol-Gel Optics III, San Diego, CA, United states. Lien externe

Lamouche, G., & Najafi, S. I. (1990). Theoretical study of optical behavior of glass waveguides with grating. Proceedings of SPIE, 1 page. Lien externe

Lamouche, G., & Najafi, S. I. (avril 1989). Finite-Element Analysis Of Ion-Exchanged Channel Waveguides [Communication écrite]. International Congress on Optical Science and Engineering, Paris, France. Lien externe

M

Moujoud, A., Saddiki, Z., Touam, T., & Najafi, S. I. (2002). Measurement of the refractive-index variations with temperature of hybrid sol-gel glasses. Thin Solid Films, 422(1-2), 161-165. Lien externe

Mashayekhi, M., Touam, T., Wang, W., Berolo, E., & Najafi, S. I. (février 1997). Diode laser array to optical fiber multiplexing via glass waveguide [Communication écrite]. Integrated Optics Devices : Potential for Commercialization, San Jose, CA, USA. Lien externe

Meshkinfam, P., Fournier, P., Fardad, M. A., Andrews, M. P., & Najafi, S. I. (février 1997). Integrated optics Er:Yb amplifier with potassium ion-exchanged glass waveguides [Communication écrite]. Integrated Optics Devices : Potential for Commercialization, San Jose, CA, USA. Lien externe

Mashayekhi, M., Touam, T., Wang, W. J., Berolo, E., & Najafi, S. I. (1997). Semiconductor device to optical fiber coupling using low-loss glass taper waveguide. Optical Engineering, 36(12), 3476-3477. Lien externe

Milova, G., Najafi, S. I., Skirtach, A., Simkin, D., & Andrews, M. P. Erbium in photosensitive hybrid organoaluminosilicate sol-gel glasses [Communication écrite]. Integrated Optics Devices : Potential for Commercialization. Lien externe

Malek-Tabrizi, A., Najafi, S. I., & Martinu, L. (janvier 1996). Glass integrated optics symmetric and nonsymmetric Mach-Zehnder interferometer sensors [Communication écrite]. Functional Photonic and Fiber Devices, San Jose, CA, USA. Lien externe

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Najafi, S. I., Touam, T., & Shooshtari, A. (juin 1998). Beam propagation method for analysis of Er-doped integrated optics devices [Communication écrite]. 10th Innovative light emitting materials. Topical symposium & 9th CIMTECH-World ceramics congress and forum on new materials, Florence, Italy. Publié dans Advances in science and technology. Non disponible

Najafi, S. I. (janvier 1998). Glass integrated optics : 30 years of R & D [Communication écrite]. Integrated Optic Devices II, San Jose CA, USA. Lien externe

Najafi, S. I. (1998). Integrated Optics. Optical Engineering, 37(4), 1100-1100. Lien externe

Najafi, S. I., Touam, T., Sara, R., Andrews, M. P., & Fardad, M. A. (1998). Sol-Gel Glass Waveguide and Grating on Silicon. Journal of Lightwave Technology, 16(9), 1640-1646. Lien externe

Najafi, S. I. (février 1997). Overview of Nd- and Er-doped glass integrated optics amplifiers and lasers [Communication écrite]. Rare-earth-doped devices. Conference, San Jose, CA, USA. Lien externe

Najafi, S. I., Li, C.-Y., Chisham, J. E., Andrews, M. P., Coudray, P., Malek-Tabrizi, A., & Peyghambarian, N. (janvier 1996). Ultraviolet-light-imprinted sol-gel silica glass channel waveguides on silicon [Communication écrite]. Functional Photonic and Fiber Devices, San Jose, CA, USA. Lien externe

Najafi, S. I., Andrews, M. P., Fardad, M. A., Milova, G., Tahar, T., & Coudray, P. (octobre 1996). UV-light imprinted surface, ridge and buried sol-gel glass waveguides and devices on silicon [Communication écrite]. Fiber integrated optics. Conference, Berlin, DEU. Lien externe

Najafi, S. I., Li, C.-Y., Andrews, M. P., Chisham, J., Lefebvre, P., Mackenzie, J. D., & Peyghambarian, N. (février 1995). Integrated optics devices by ultraviolet light imprinting in sol-gel silica glass [Communication écrite]. Functional Photonic Integrated Circuits, San Jose, CA, USA. Lien externe

Najafi, S. I., & Fallahi, M. Circular grating surface emitting lasers [Communication écrite]. Nanofabrication Technologies and Device Integration. Lien externe

Najafi, S. I. (janvier 1994). Circular gratings and applications in integrated optics/optoelectronics [Communication écrite]. Nonlinear Optics for High-Speed Electronics and Optical Frequency Conversion, Los Angeles, CA, USA. Lien externe

Najafi, S. I., Gomez-Reino, C., & Fujii, Y. (1994). GRIN '92: gradient-index optical systems. Applied Optics, 33(16), 3331-3332. Lien externe

Najafi, S. I., Fallahi, M., Lefebvre, P., François, V., & Templeton, I. M. Integrated optical tap-power-divider [Communication écrite]. Nanofabrication Technologies and Device Integration. Lien externe

Najafi, S. I., Honkanen, S., & Tervonen, A. (juillet 1994). Recent progress in glass integrated optical circuits [Communication écrite]. Integrated Optics and Microstructures II, San Diego, CA, USA. Lien externe

Najafi, S. I. (janvier 1993). Attachment of optical fiber to integrated optical devices [Communication écrite]. Integrated Optics and Optoelectronics: A Critical Review, Los Angeles, CA. Lien externe

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Ohtsuki, T., Honkanen, S., Najafi, S. I., & Peyghambarian, N. (1997). Cooperative upconversion effects on the performance of er3+-doped phosphate glass waveguide amplifiers. Journal of the Optical Society of America. B, Optical Physics, 14(7), 1838-1845. Lien externe

Ohtsuki, T., Peyghambarian, N., Honkanen, S., & Najafi, S. I. (1995). Gain characteristics of a high concentration Er³⁺ doped phosphate glass waveguide. Journal of Applied Physics, 78(6), 3617-3621. Lien externe

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Pelissier, S., Blanc Pelessier, D., Najafi, S. I., & Andrews, M. P. (2001). Self-processing of diffractive optical components in hybrid sol-gel glasses. (Demande de brevet no WO2001031401). Lien externe

Pelissier, S., Blanc, D., Andrews, M. P., Najafi, S. I., Tishchenko, A. V., & Parriaux, O. (1999). Single-Step Uv Recording of Sinusoidal Surface Gratings in Hybrid Solgel Glasses. Applied Optics, 38(32), 6744-6748. Lien externe

Peyghambarian, N., Tajalli, H., Wright, E. M., Koch, S. W., Najafi, S. I., Hulin, D., & Mackenzie, J. D. (juillet 1994). Quantum dot glass integrated optical devices [Communication écrite]. Glass Integrated Optics and Optical Fiber Devices: A Critical Review, San Diego, CA, USA. Lien externe

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Rahmani, S., Touam, T., Andrews, M. P., & Najafi, S. I. (juillet 1998). Polyglass integrated photonic devices [Communication écrite]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. Lien externe

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Shooshtari, A., Touam, T., Safavi-Naeini, S., & Najafi, S. I. (2000). Beam propagation method for analysis of er-doped integrated optics devices. Optical Engineering, 39(3), 735-737. Lien externe

Shooshtari, A., Meshkinfam, P., Touam, T., Andrews, M. P., & Najafi, S. I. (1998). Ion-Exchanged Er/Yb Phosphate Glass Waveguide Amplifiers and Lasers. Optical Engineering, 37(4), 1188-1192. Lien externe

Saravanamuttu, K., Du, X. M., Najafi, S. I., & Andrews, M. P. (1998). Photoinduced Structural Relaxation and Densification in Sol- Gel-Derived Nanocomposite Thin Films: Implications for Integrated Optics Device Fabrication. Canadian Journal of Chemistry, 76(11), 1717-1729. Lien externe

Sara, R., Touam, T., Blanchetiere, C., Saddiki, Z., Saravanamuttu, K., Du, X. M., Chrostowski, J., Andrews, M. P., & Najafi, S. I. (juillet 1998). Photolithography fabrication of sol-gel ridge waveguides [Communication écrite]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. Lien externe

Sara, R., Touam, T., Coudray, P., Andrews, M. P., & Najafi, S. I. (juillet 1998). Polyglass integrated optics devices for lightwave communication [Communication écrite]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. Lien externe

Shooshtari, A., Touam, T., & Najafi, S. I. (1998). Yb3+ Sensitized Er3+-Doped Waveguide Amplifiers: a Theoretical Approach. Optical and Quantum Electronics, 30(4), 249-264. Lien externe

Seguin, F., & Najafi, S. I. (janvier 1996). Spectral technique for the simultaneous measurement of pressure and temperature [Communication écrite]. Functional Photonic and Fiber Devices, San Jose, CA, USA. Lien externe

Saarinen, J., Huttunen, J., Honkanen, S., & Najafi, S. I. (1994). Double-ion-exchange process in glass for the fabrication of computer-generated waveguide holograms. Applied Optics, 33(16), 3353-3359. Lien externe

Saarinen, J., Honkanen, S., Zhang, G.-W., & Najafi, S. I. Modified double ion-exchange method for the fabrication of phase gratings in glass waveguides [Communication écrite]. Nanofabrication Technologies and Device Integration. Lien externe

Sriram, S., Lamouche, G., & Najafi, S. I. (juillet 1990). Accurate analysis of ordinary and grating-assisted ion-exchanged glass waveguides [Communication écrite]. Optoelectronic Devices and Applications, San Diego, CA, USA (10 pages). Lien externe

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Touam, T., Sara, R., Andrews, M. P., & Najafi, S. I. (juin 1998). Photoinscribed waveguides, devices, and gratings in polyglass on silicon [Communication écrite]. International Optical Design Conference 1998, Kona, HI, USA. Lien externe

Touam, T., Du, X. M., Fardad, M. A., Andrews, M. P., & Najafi, S. I. (1998). Sol-Gel Glass Waveguides With Bragg Grating. Optical Engineering, 37(4), 1136-1142. Lien externe

Touam, T., Du, X. M., Fardad, M. A., Andrews, M. P., & Najafi, S. I. (janvier 1998). Theoretical and experimental study of ridge waveguides with Bragg grating derived from hybrid sol-gel glasses [Communication écrite]. Photosensitive Optical Materials and Devices II, San Jose, CA, USA. Lien externe

Touam, T., Milova, G., Saddiki, Z., Fardad, M. A., Andrews, M. P., Chrostowski, J., & Najafi, S. I. (1997). Organoaluminophosphate sol-gel silica glass thin films for integrated optics. Thin Solid Films, 307(1), 203-207. Lien externe

Touam, T., & Najafi, S. I. (1997). Symmetric profile beams from waveguides with asymmetric grating couplers. Applied Optics, 36(12), 2554-2558. Lien externe

Touam, T., & Najafi, S. I. (janvier 1996). Accurate analysis of reflective and diffractive gratings for integrated optics [Communication écrite]. Functional Photonic and Fiber Devices, San Jose, CA, USA. Lien externe

Touam, T., Wu, C., Bélanger, M., Currie, J. F., & Najafi, S. I. (septembre 1988). Planar gaas Zn-diffused waveguides: fabrication, characterization and analysis [Communication écrite]. SPIE Integrated Optical Circuit Engineering VI, Boston, MA, United states. Lien externe

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Wu, C., Svilans, M., Makino, T., Glinski, J., Blaauw, C., Maritan, C., Knight, D. G., Fallahi, M., Templeton, I., Maciejko, R., & Najafi, S. I. (avril 1992). Circular Grating Surface-Emitting Laser [Communication écrite]. Integrated Photonics Research 1992, New Orleans, Louisiana, USA. Lien externe

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Zhang, G.-W., Honkanen, S., Najafi, S. I., Tervonen, A., & Katila, P. Effect of thermal post-annealing on spectral transmission of 0.807/1.3 um, 1.48/1.55 um, and 1.3/1.55 um ion-exchanged Mach-Zehnder interferometer wavelength demultiplexers/multiplexers [Communication écrite]. Nanofabrication Technologies and Device Integration. Lien externe

Zhang, H., Schwelb, O., Li Ming, J., & Najafi, S. I. (1994). Fully planar proton-exchanged lithium niobate waveguides with grating taps. Applied Optics, 33(16), 3391-3393. Lien externe

Zhang, G.-W., Honkanen, S., Najafi, S. I., & Tervonen, A. Glass integrated optics circuit for 1.3/1.55 micrometer optical communication system [Communication écrite]. Nanofabrication Technologies and Device Integration. Lien externe

Zhang, G., Honkanen, S., Tervonen, A., Wu, C.-M., & Najafi, S. I. (1994). Glass integrated optics circuit for 1.48/1.55- and 1.30/1.55-μm wavelength division multiplexing and 1/8 splitting. Applied Optics, 33(16), 3371-3374. Lien externe

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