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Novel method for generating multiple wavelengths by pulsed serrodyne modulation

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4 Author(s)
Tomita, I. ; NTT Photonics Labs., NTT Corp., Kanagawa, Japan ; Sanjoh, H. ; Yamada, E. ; Yoshikuni, Yuzo

We propose a new scheme based on pulsed serrodyne modulation in an optical ring circuit designed to increase the number of wavelengths of optical pulses from a pulse-type multiwavelength light source. As the optical pulses circulate around the ring, the shift in the pulse wavelength increases as a result of the pulsed serrodyne modulation in the ring. By combining the shifted wavelengths of pulses with different round trips in the ring, we can produce a multiple wavelength output with a broad bandwidth. We calculated the spectral characteristics of the multiple wavelengths and confirmed the performance of the scheme experimentally.

Published in:

Photonics Technology Letters, IEEE  (Volume:15 ,  Issue: 9 )

Date of Publication:

Sept. 2003

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