Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 20, Issue 1-4, Pages 36-38Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2007.910755
Keywords
continuous-wave (CW) modulation; optical frequency comb; phase modulation
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We propose a theory and experimentally verify ultra-flat comb generation by dual-sine-wave phase-only modulation. This novel approach requires a single optical element and is very practical and efficient in terms of both power budget and bandwidth. Using this approach, we have generated two optical spectra, one with 11 comb lines and 1.9-dB flatness and the other with 9 comb lines and 0.8-dB flatness.
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