التفاصيل البيبلوغرافية
| العنوان: |
1.3-μm uncooled DFB laser-diode module with a coupled differential feed for 10-Gb/s ethernet applications. |
| المؤلفون: |
Sakai, K., Aruga, H., Takagi, S.-I., Kawano, M., Negishi, M., Kondoh, Y., Kaneko, S.-I. |
| المصدر: |
Journal of Lightwave Technology; Feb2004, Vol. 22 Issue 2, p574-581, 8p |
| مستخلص: |
A coaxial 10-Gb/s 1.3-μm distributed feedback (DFB) laser-diode module with a coupled differential feed has been developed. The differential cascaded feed with the characteristic impedance of 100 Ω, which consists of a 140-Ω ground-signal-signal-ground (GSSG) leads, a small-sized 60-Ω feed-through, and a 140-Ω wire-bonding pad, provides less sensitivity to the lead length. Integrating with 25-Ω matching resistances and a 60-Ω differential microstrip line, whose length corresponds to one eighth of wavelength at 7 GHz, gives wide-band impedance matching between the feed and the laser diode portion with small power loss. Experiment shows good return loss of greater than 9 dB at 10 GHz, and small change of bit error rate (BER) up to the lead length of 4 mm. With a newly developed 250-μm cavity laser chip, we have demonstrated stable eye diagrams with the mask margins of 31 and 29% at case temperature of 0 and 85°C, respectively. [ABSTRACT FROM PUBLISHER] |
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