title: 2.5-Gb/s hybridly-integrated tunable external cavity laser using a superluminescent diode and a polymer Bragg reflector.
abstract: We presented a hybridly-integrated tunable external cavity laser with 0.8 nm mode spacing 16 channels operating in the direct modulation of 2.5-Gbps for a low-cost source of a WDM-PON system. The tunable laser was fabricated by using a superluminescent diode (SLD) and a polymer Bragg reflector. The maximum output power and the power slope efficiency of the tunable laser were 10.3 mW and 0.132 mW/mA, respectively, at the SLD current of 100 mA and the temperature of 25 degrees C. The directly-modulated tunable laser successfully provided 2.5-Gbps transmissions through 20-km standard single mode fiber. The power penalty of the tunable laser was less than 0.8 dB for 16 channels after a 20-km transmission. The power penalty variation was less than 1.4 dB during the blue-shifted wavelength tuning.
authors.affiliation: Photonic-Wireless Convergence Components Department, Electronics and Telecommunications Research Institute,138 Gajeongno, Yuseong-gu, Daejeon, 305-350, Republic of Korea. khyoon@etri.re.kr
authors.forename: Ki-Hong
authors.initials: KH
authors.lastname: Yoon
authors.forename: Su Hwan
authors.initials: SH
authors.lastname: Oh
authors.forename: Ki Soo
authors.initials: KS
authors.lastname: Kim
authors.forename: O-Kyun
authors.initials: OK
authors.lastname: Kwon
authors.forename: Dae Kon
authors.initials: DK
authors.lastname: Oh
authors.forename: Young-Ouk
authors.initials: YO
authors.lastname: Noh
authors.forename: Hyung-Jong
authors.initials: HJ
authors.lastname: Lee
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D054023:Lasers, Semiconductor; D007909:Lenses; D008163:Luminescent Measurements / Q000295:instrumentation*; D011108:Polymers; D012031:Refractometry / Q000295:instrumentation*; D018511:Systems Integration
chemical_list: D011108:Polymers