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This paper reports on InGaAsP-InGaAsP tensile strained MQW electroabsorption (EA) modulators with a high modulation efficiency of 35 GHz/V that generate optical short pulses. We studied and optimized the multiple-quantum-well (MQW) structural parameters, barrier height, and well number, thickness, and strain in the absorption layer to ensure high attenuation efficiency and generate low duty cycle pulses. Low TE/TM polarization sensitivity was obtained by controlling strain. Stable, nearly transform-limited optical pulse trains with a narrow pulsewidth of 3.6 ps are generated by applying a 20-GHz sinusoidal modulation voltage (6 Vpp) to the EA modulator. This achieves a very small pulse duty cycle of 7.2%
Published in:
Quantum Electronics, IEEE Journal of
(Volume:34
,
Issue:
2
)
Date of Publication: Feb 1998
- Page(s):
- 277 - 281
- ISSN :
- 0018-9197
- INSPEC Accession Number:
- 5825525
- Digital Object Identifier :
- 10.1109/3.658708
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Feb 1998
- Sponsored by :
- IEEE Photonics Society
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