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Cross-correlation measurement of the turn-on delay and pulsewidth of a Q-switched two-section semiconductor laser

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6 Author(s)
Sheng-Hui Yang ; Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA ; Thedrez, B.J. ; Saddow, S.E. ; Wood, C.
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Cross-correlation techniques were employed for direct optical measurement of output versus electrical bias for a Q-switched two-section semiconductor laser. Since the switching scheme is not limited by external connections to the device, the ultrafast dynamics of the diode laser can be investigated. In particular, a turn-on-delay as small as 70 ps was recorded with picosecond accuracy. The FWHM and peak power of the Q-switched pulse were also measured. A numerical simulation was performed, and good agreement with experimental results was achieved.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:5 ,  Issue: 12 )