title: Continuously tunable compact lasers based on thermo-optic polymer waveguides with Bragg gratings.
abstract: 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.
authors.affiliation: ChemOptics Inc, Yusong-gu, Daejeon, Republic of Korea.
authors.forename: Young-Ouk
authors.initials: YO
authors.lastname: Noh
authors.forename: Hyung-Jong
authors.initials: HJ
authors.lastname: Lee
authors.forename: Jung Jin
authors.initials: JJ
authors.lastname: Ju
authors.forename: Min-su
authors.initials: MS
authors.lastname: Kim
authors.forename: Su Hwan
authors.initials: SH
authors.lastname: Oh
authors.forename: Min-Cheol
authors.initials: MC
authors.lastname: Oh