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http://dx.doi.org/10.3807/KJOP.2005.16.1.013

Fabrication and performance analysis of cost-effective fiber grating lasers for WDM-PON systems  

Cho, Seung-Hyun (WPON Technology Team, ETRI)
Lee, Woo-Ram (WPON Technology Team, ETRI)
Lee, Jie-Hyun (WPON Technology Team, ETRI)
Park, Jae-Dong (WPON Technology Team, ETRI)
Kim, Byoung-Whi (WPON Technology Team, ETRI)
Kang, Min-Ho (School of Engineering, Information & Communication University)
Shin, Dong-Wook (Department of Ceramic Engineering, Hanyang University)
Publication Information
Korean Journal of Optics and Photonics / v.16, no.1, 2005 , pp. 13-20 More about this Journal
Abstract
Fiber-Bragg-grating external cavity laser(FGL) modules were fabricated and experimentally analyzed. Proposed as a cost-effective solution for optical sources in the WDM-PON access network, FGL modules were packaged to TO-CAN type. We obtained a low threshold current of 13 mA, and an optical output power of 3.6 mW with a bias current of 60 mA at $25^{\circ}C$. The lasing wavelength dependencies on current and temperature were as small as 5.2 pm/mA and 30 pm/$^{\circ}C$, respectively. These change rates of the wavelength with the temperature and current are smaller than those of the DFB laser. Single-mode oscillations with the side-mode suppression ratio(SMSR) over 30 dB are maintained above the threshold current level. The FGL modules can be directly modulated at 155 Mbps, PRBS(2$^{23}$ -1) NRZ signal. Through the BER plots, we did not see the significant degradations before and after the transmission over 20km of the SMF at 155 Mb/s.
Keywords
fiber Bragg grating; laser diode; fiber grating laser; WDM; optical access network;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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