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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 31, Iss. 6 — Mar. 15, 2013
  • pp: 982–987

Flexible Polymeric Tunable Lasers for WDM Passive Optical Networks

Kyung-Jo Kim, Min-Cheol Oh, Sang-Rok Moon, and Chang-Hee Lee

Journal of Lightwave Technology, Vol. 31, Issue 6, pp. 982-987 (2013)

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Flexible polymer waveguide with a Bragg reflection grating is incorporated to form an external cavity laser with a wide tuning range, and it is evaluated as a tunable light source for wavelength division multiplexing optical communication systems. The highly elastic property of polymer materials makes them suitable for producing a tunable Bragg reflector controlled by an imposed strain. The flexible tunable Bragg reflector is installed on a compact moving stage 6 connected to a piezoelectric motor. By applying a total strain of 60680 με (6.07%), wavelength tuning of 82 nm is achieved with a side-mode suppression ratio of 43 dB and a linewidth less than 0.1 nm. The tunable laser controlled by a microactuator exhibits long-term stability with a wavelength fluctuation of less than 0.1 nm. In the optical transmission experiment, various wavelengths are used to transmit the 2.5 Gb/s signal over 50 km, excellent performance was observed with a power penalty of 1 dB compared to the DFB laser.

© 2013 IEEE

Kyung-Jo Kim, Min-Cheol Oh, Sang-Rok Moon, and Chang-Hee Lee, "Flexible Polymeric Tunable Lasers for WDM Passive Optical Networks," J. Lightwave Technol. 31, 982-987 (2013)

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