1 October 2003 Design of a 2-×200-nm bandwith integrated optic duplexer
Author Affiliations +
Optical Engineering, 42(10), (2003). doi:10.1117/1.1605104
Abstract
In the last few years, the growth of data traffic has increased the interest in broadband integrated optical devices. Their applications include, for example, a possibility of bidirectional fiber communications in a single fiber, which is achievable by adding the transmission capacity of two optical telecommunication windows for local area networks (LAN) and wide area networks (WAN) or by combining pump and signal wavelengths in rare earth-doped integrated optical amplifiers. A promising technology to realize those devices is ion exchange in glass. This allows the integration of different functions on a glass substrate with efficient results and a better compatibility in fiber systems at a low cost. We propose an original broadband duplexer based on a leaky structure, which involves a nonresonant coupling and ensures a broadband spectral behavior. The broadband duplexer is first presented, and the focus is specially made on the improvement of the output cross talk through the suppression of parasitical back reflections. Theoretical optimization and validation by simulations follow. The spectral response of the optimized structure displays two duplexing bands of at least 200 nm in width with a total output channels' isolation within 0.6- to 0.8-μm range, and a better than 15-dB isolation level within 1.2- to 1.4-μm range, with a maximum of 24-dB isolation at 1.31 μm.
Elise Ghibaudo, Jean-Emmanuel Broquin, Pierre M. Benech, "Design of a 2-×200-nm bandwith integrated optic duplexer," Optical Engineering 42(10), (1 October 2003). http://dx.doi.org/10.1117/1.1605104
JOURNAL ARTICLE
6 PAGES


SHARE
KEYWORDS
Waveguides

Beam propagation method

Integrated optics

Light wave propagation

Telecommunications

Geometrical optics

Wave propagation

RELATED CONTENT


Back to Top