@inproceedings{2cc76d091f124853b8cf30010f02d191,
title = "Polymer long-period waveguide grating with low temperature sensitivity",
abstract = "In this paper, we derive the general condition for the realization of a temperature-insensitive resonance wavelength of a long-period waveguide grating and present numerical examples for gratings formed in polymer channel waveguides. We show that, by controlling the thickness of the waveguide cladding, zero temperature sensitivity can be achieved with core and cladding materials that have significantly different thermo-optic coefficients. To verify our finding, we follow the temperature-insensitivity condition and fabricate a polymer grating with a core material that has a thermo-optic coefficient about twice as that of the cladding material. The temperature sensitivity of the fabricated grating is within ±0.15 nm/°C over a temperature range of ∼15 °C, which is more than an order of magnitude lower than those of previously reported gratings fabricated with the same materials.",
keywords = "Long-period gratings, Optical filters, Optical polymer, Optical waveguide filters, Optical waveguides, Polymer waveguides",
author = "Qing Liu and Chiang, \{Kin Seng\} and Lor, \{Kar Pong\}",
year = "2006",
doi = "10.1117/12.688349",
language = "English",
isbn = "0819464465",
volume = "6351 I",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
note = "Passive Components and Fiber-based Devices III ; Conference date: 05-09-2006 Through 07-09-2006",
}