Dynamic optical coupler using a Dammann grating

Caihui Di; Changhe Zhou; Huayi Ru

doi:10.1117/12.576467

10 January 2005 Dynamic optical coupler using a Dammann grating

Caihui Di, Changhe Zhou, Huayi Ru

Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.576467
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

Driven by the fast development of fiber communication networks, there exists a strong need for a dynamic coupler with a large number of output ports. In our work, we developed a dynamic optical coupler by employing a specially designed Dammann grating that consists of two areas, which are the Dammann-grating area and the blank area. When incoming beams entirely impinge on the Dammann-grating area of the plate, this device demonstrates 1×8 dynamic optical coupler with good uniformity of 0.03 and low insertion loss of about 10.7 dB for each channel as a splitter at the wavelength of 1550 nm. When incoming beams entirely impinge on the blank area of the plate, this device achieves a low insertion loss of 0.43 dB as a combiner. Therefore, this device can achieve the beam splitter and combiner as a switch between them according to the relative shift between two areas of the plate. The experimental results are reported in detail in this paper.

Citation Download Citation

Caihui Di, Changhe Zhou, and Huayi Ru "Dynamic optical coupler using a Dammann grating", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.576467

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