|Title:||Multi-layer cladding leaky planar waveguide for high-power applications|
Rastogi, Vipul K.
|Published in:||Applied Physics B: Lasers and Optics|
|Abstract:||We design a multi-layer cladding large-core planar waveguide that supports a single guided mode. The waveguide works on the principle of higher-order mode discrimination. The cladding of the waveguide is formed by alternate low- and high- index regions, which helps leaking out of higher-order modes while retaining the fundamental mode over the entire length of the waveguide. The structure is analyzed by the transfer-matrix method and the leakage losses of the modes have been calculated. We show that a waveguide formed in silica with numerical aperture 0.24 and core width 10 μm can be designed to exhibit single-mode operation at 1550-nm wavelength. Such a structure should find applications in high-power planar waveguide lasers and amplifiers. © 2008 Springer-Verlag.|
|Citation:||Applied Physics B: Lasers and Optics (2008), 92(4): 577-583|
|Author Scopus IDs:||55547117236|
|Author Affiliations:||Kumar, A., Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247 667, India|
Rastogi, V., Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247 667, India
|Corresponding Author:||Rastogi, V.; Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247 667, India; email: email@example.com|
|Appears in Collections:||Journal Publications [PH]|
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