Continuously tunable compact lasers based on thermo-optic polymer waveguides with Bragg gratings.
Based on the thermo-optic tuning of a polymer waveguide Bragg reflector, we demonstrated a cost-effective tunable wavelength laser for WDM optical communications. The excellent thermo-optic effect of the polymer waveguide enabled direct tuning of the Bragg reflection wavelength by controlling the electrical power on a micro-heater. Wavelength tuning for 32 channels with 0.8 nm wavelength spacing was demonstrated as well as a continuous tuning with wavelength steps of 0.1 nm. To be qualified as a tunable laser for WDM-PON applications, wavelength stability within 0.15 nm was confirmed for an operating temperature range from -10 to 70 degrees C.
Noh
Young-Ouk
YO
ChemOptics Inc, Yusong-gu, Daejeon, Republic of Korea.
Lee
Hyung-Jong
HJ
Ju
Jung Jin
JJ
Kim
Min-su
MS
Oh
Su Hwan
SH
Oh
Min-Cheol
MC