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Directly Modulated Tunable External Cavity Laser Transmitter Optical Sub-Assembly
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- Authors
- Ki-Hong Yoon, Byung-Seok Choi, O-Kyun Kwon, Su Hwan Oh, Ki Soo Kim, Dong Min Kang, Young-Tak Han, Hak Kyu Lee
- Issue Date
- 2014-01
- Citation
- IEEE Photonics Technology Letters, v.26, no.1, pp.47-49
- ISSN
- 1041-1135
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- A compact-size and low-cost tunable external cavity laser transmitter optical sub-assembly with butt-coupled superluminescent diode and polymer Bragg reflector (PBR) is described. The output wavelength of the laser is widely tuned over 16 nm by a heater of the PBR and is finely tuned by a phase of the PBR. The threshold current and output power slope of the laser are 8 mA and 0.117 W/A, respectively, at the temperature of 25 °C. The directly-modulated tunable laser provides 2.5-Gb/s transmission through a 80-km standard single-mode fiber without an error-flow by controlling the phase power of the PBR and its dispersion power penalty is <0.7 dB. © 2013 IEEE.
- KSP Keywords
- 16 nm, Bragg reflector, Compact size, Directly modulated, Dispersion power penalty, External cavity laser(ECL), Low-cost, Output power, Single-mode fiber(SMF), Standard single-mode fiber, Superluminescent diodes(SLDs)