TY - JOUR
T1 - Extended transmission reach using optical filtering of frequency-modulated widely tunable ssg-dbr laser
AU - Matsuo, S.
AU - Kakitsuka, T.
AU - Segawa, T.
AU - Fujiwara, N.
AU - Shibata, Y.
AU - Oohashi, H.
AU - Yasaka, H.
AU - Suzuki, H.
PY - 2008/2/15
Y1 - 2008/2/15
N2 - We propose a novel transmitter consisting of a frequency-modulated widely tunable super-structure-grating distributed Bragg reflector (SSG-DBR) laser and an optical filter. The SSG-DBR laser acts as a frequency modulating light source with a constant output power by modulating the reverse bias voltage in the phase control (PC) region. By optically filtering the output light from the frequency-modulated laser, we have demonstrated 60-and 180-km transmissions for 20-and 10-Gb/s nonreturn-to-zero (NRZ) signals, respectively. The power penalty was 2.2 dB after the 180-km transmission of a 10-Gb/s NRZ signal as determined by bit-error-rate measurements. Furthermore, an extended transmission reach was achieved with a wide tuning range without controlling the bias and modulating voltages in the PC region.
AB - We propose a novel transmitter consisting of a frequency-modulated widely tunable super-structure-grating distributed Bragg reflector (SSG-DBR) laser and an optical filter. The SSG-DBR laser acts as a frequency modulating light source with a constant output power by modulating the reverse bias voltage in the phase control (PC) region. By optically filtering the output light from the frequency-modulated laser, we have demonstrated 60-and 180-km transmissions for 20-and 10-Gb/s nonreturn-to-zero (NRZ) signals, respectively. The power penalty was 2.2 dB after the 180-km transmission of a 10-Gb/s NRZ signal as determined by bit-error-rate measurements. Furthermore, an extended transmission reach was achieved with a wide tuning range without controlling the bias and modulating voltages in the PC region.
KW - Directly modulated laser
KW - Frequency-modulated laser
KW - Optical filter
KW - Optical minimum-shift keying (OMSK)
KW - Super-structure grating (SSG)
KW - Widely tunable laser
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U2 - 10.1109/LPT.2007.915634
DO - 10.1109/LPT.2007.915634
M3 - Article
AN - SCOPUS:77955229423
SN - 1041-1135
VL - 20
SP - 294
EP - 296
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 4
ER -