Abstract
A simulation of optical short pulse generation using a DFB laser/EA modulator integrated light source was carried out. The dependence of the pulse shape and the spectrum on the isolation resistance between laser and the modulator part is clarified. Theoretical results show that the spectrum is affected more seriously than the pulse shape by the isolation resistance. An isolation resistance of larger than 500 ω is required for transform-limited pulse generation. Utilizing an integrated light source with an isolation resistance of 10 Mω optical short pulse generation at 5 GHz repetition rate was experimentally obtained with a pulsewidth of 33 ps and with a spectral bandwidth of 9.4 GHz. Since the time-bandwidth product was 0.31, the pulse was considered to be quasi-transform-limited. The lasing wavelength stability during short pulse generation was also confirmed in the integrated light source.
| Original language | English |
|---|---|
| Pages (from-to) | 1708-1713 |
| Number of pages | 6 |
| Journal | IEEE Journal of Quantum Electronics |
| Volume | 29 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1993 Jun |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
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Optical short pulse generation by a DFB laser/EA modulator integrated light source. / Tanaka, Hideaki; Suzuki, Masatoshi; Matsushima, Yuichi.
In: IEEE Journal of Quantum Electronics, Vol. 29, No. 6, 06.1993, p. 1708-1713.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Optical short pulse generation by a DFB laser/EA modulator integrated light source
AU - Tanaka, Hideaki
AU - Suzuki, Masatoshi
AU - Matsushima, Yuichi
PY - 1993/6
Y1 - 1993/6
N2 - A simulation of optical short pulse generation using a DFB laser/EA modulator integrated light source was carried out. The dependence of the pulse shape and the spectrum on the isolation resistance between laser and the modulator part is clarified. Theoretical results show that the spectrum is affected more seriously than the pulse shape by the isolation resistance. An isolation resistance of larger than 500 ω is required for transform-limited pulse generation. Utilizing an integrated light source with an isolation resistance of 10 Mω optical short pulse generation at 5 GHz repetition rate was experimentally obtained with a pulsewidth of 33 ps and with a spectral bandwidth of 9.4 GHz. Since the time-bandwidth product was 0.31, the pulse was considered to be quasi-transform-limited. The lasing wavelength stability during short pulse generation was also confirmed in the integrated light source.
AB - A simulation of optical short pulse generation using a DFB laser/EA modulator integrated light source was carried out. The dependence of the pulse shape and the spectrum on the isolation resistance between laser and the modulator part is clarified. Theoretical results show that the spectrum is affected more seriously than the pulse shape by the isolation resistance. An isolation resistance of larger than 500 ω is required for transform-limited pulse generation. Utilizing an integrated light source with an isolation resistance of 10 Mω optical short pulse generation at 5 GHz repetition rate was experimentally obtained with a pulsewidth of 33 ps and with a spectral bandwidth of 9.4 GHz. Since the time-bandwidth product was 0.31, the pulse was considered to be quasi-transform-limited. The lasing wavelength stability during short pulse generation was also confirmed in the integrated light source.
UR - http://www.scopus.com/inward/record.url?scp=0027612299&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027612299&partnerID=8YFLogxK
U2 - 10.1109/3.234425
DO - 10.1109/3.234425
M3 - Article
AN - SCOPUS:0027612299
VL - 29
SP - 1708
EP - 1713
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
SN - 0018-9197
IS - 6
ER -