Tunable external cavity laser employing uncooled superluminescent diode.
We have fabricated a tunable external cavity laser (T-ECL) based on a superluminescent diode and a polymeric waveguide Bragg reflector, providing a cost-effective solution for wavelength division multiplexing-passive optical network (WDM-PON) systems. The wavelength of the T-ECL is tuned through 100 GHz-spacing 16 channels by the thermo-optic tuning of the refractive index of the polymer waveguide at a low input power of 70 mW. The maximum output power and the slope efficiency of the uncooled diode at 20 (75) degrees C are 8.83 (3.80) mW and 0.107 (0.061) W/A, respectively. The T-ECL operated successfully in the direct modulation for 1.25 Gbit/s transmissions over 20 km.
Oh
Su Hwan
SH
PhotoniciWireless Convergence Components Department, Electronics and Telecommunications Research Institute, Yuseong-gu, Daejeon, Republic of Korea. osh@etri.re.kr
Kim
Ki Soo
KS
Ju
Jung Jin
JJ
Kim
Min-Su
MS
Yoon
Ki-Hong
KH
Oh
Dae Kon
DK
Noh
Young-Ouk
YO
Lee
Hyung-Jong
HJ
D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D054023:Lasers, Semiconductor; D008029:Lighting / Q000295:instrumentation*; D008163:Luminescent Measurements / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013696:Temperature