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Tunable External Cavity Laser by Hybrid Integration of a Superluminescent Diode and a Polymer Bragg Reflector
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- Authors
- Su Hwan Oh, Ki-Hong Yoon, Ki Soo Kim, Jongbae Kim, O.-Kyun Kwon, Dae Kon Oh, Young-Ouk Noh, Jun-Kyu Seo, Hyung-Jong Lee
- Issue Date
- 2011-12
- Citation
- IEEE Journal of Selected Topics in Quantum Electronics, v.17, no.6, pp.1534-1541
- ISSN
- 1077-260X
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- We report a tunable external cavity laser (T-ECL) using a superluminescent diode (SLD) and a polymer Bragg reflector with 0.8-nm mode spacing 25 channels operating in the direct modulation of 2.5 Gb/s for a low-cost source of a wavelength division multiplexed passive optical network (WDM-PON) system. The maximum output power is 12.2mW and the slope efficiency of the T-ECL is about 0.12-0.17mW/mA in the tuning range of 20 nm at the SLD current of 50mA and at the temperature of 25°C. The T-ECL successfully operated in the direct modulation for 2.5-Gb/s transmission through 20-km standard single-mode fiber. The power penalty of the T-ECL is less than 0.8dB for 25 channels after the 20-km transmission. The power penalty variation is less than 1.5dB in the wavelength-tuning range of 20nm. The performance of the T-ECL satisfies the requirements of the WDM-PON system. © 2006 IEEE.
- KSP Keywords
- 20 nm, Bragg reflector, Direct modulation, External cavity laser(ECL), Hybrid Integration, Low-cost, PON system, Single-mode fiber(SMF), Slope efficiency, Standard single-mode fiber, Superluminescent diodes(SLDs)