Title :
Tunable external cavity laser based on polymer waveguide platform for WDM access network
Author :
Lee, Jie Hyun ; Park, Mahn Yong ; Kim, Cheol Young ; Cho, Seung-Hyun ; Lee, Wooram ; Jeong, Geon ; Kim, Byoung Whi
Author_Institution :
WDM Passive Opt. Network Technol. Team, Electron. & Telecommun. Res. Inst., Daejeon, South Korea
Abstract :
We developed a wide-range wavelength tunable external cavity lasers based on a polymer waveguide platform for use in wavelength-division-multiplexing (WDM) access networks as a low-cost light source. The lasing wavelength is tuned over 13 nm by thermally changing the reflection spectrum of the polymer waveguide Bragg grating with a heater. With the sidemode suppression ratio higher than 30 dB, it can support 16 WDM channels spaced by 100 GHz. The directly modulated 1.25-Gb/s data streams were successfully transmitted over the single-mode optical fiber link of 20 km.
Keywords :
Bragg gratings; channel spacing; integrated optics; laser cavity resonators; laser tuning; optical communication equipment; optical fibre subscriber loops; optical polymers; optical waveguides; reflectivity; semiconductor lasers; thermo-optical effects; wavelength division multiplexing; 1.25 Gbit/s; 100 GHz; 13 nm; 20 km; Bragg grating; WDM access network; WDM channels; external cavity laser; heater; low-cost light source; modulated data streams; polymer waveguide platform; reflection spectrum; sidemode suppression ratio; single-mode optical fiber link; tunable laser; wavelength-division-multiplexing; Bragg gratings; Laser tuning; Light sources; Optical reflection; Optical waveguides; Polymers; Tunable circuits and devices; WDM networks; Waveguide lasers; Wavelength division multiplexing; Access networks; WDM; polymer waveguide platform; tunable external cavity laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.853250
