Abstract

We propose to insert group velocity dispersion between cascaded phase and amplitude modulation for ultraflat optical frequency comb (OFC) generation. With the dispersion, the sinusoidally varied chirp of the continuous wave light induced by phase modulation becomes linear within a relatively wide time interval. This is useful to improve the flatness of the generated OFC by directly cascaded phase and amplitude modulation. Simulation shows a flat comb of 37 tones within 0.88 dB power variation when the modulation index of the phase modulation reaches 20. An ultraflat comb generator with 10 GHz frequency spacing is also demonstrated. The flatness of the 15 tones around the center wavelength has been improved to 0.98 dB.

© 2013 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Optical Nyquist pulse generation using a time lens with spectral slicing

Dong Wang, Li Huo, Yanfei Xing, Xiangyu Jiang, and Caiyun Lou
Opt. Express 23(4) 4329-4339 (2015)

Comparison analysis of optical frequency comb generation with nonlinear effects in highly nonlinear fibers

Ting Yang, Jianji Dong, Shasha Liao, Dexiu Huang, and Xinliang Zhang
Opt. Express 21(7) 8508-8520 (2013)

Ultra-flat optical frequency comb generator using a single-driven dual-parallel Mach–Zehnder modulator

Qiang Wang, Li Huo, Yanfei Xing, and Bingkun Zhou
Opt. Lett. 39(10) 3050-3053 (2014)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription