All-optical ultra-wideband pulse generation based on semiconductor optical amplifiers.
In: Frontiers of Optoelectronics in China, Jg. 2 (2009-03-01), Heft 1, S. 40-49
Online
academicJournal
Zugriff:
Several all-optical methods for ultra-wideband (UWB) pulse generation based on various nonlinearities of single semiconductor optical amplifiers (SOAs), namely cross phase modulation (XPM), cross gain modulation (XGM), and a hybrid of self phase modulation (SPM) and XGM, have been demonstrated. In the first method, UWB doublet pulses are realized with XPM. The input optical Gaussian pulse will be converted to two polarity-reversed monocycle pulses by a blue shifted and a red shifted optical bandpass filters respectively. These two monocycle pulses are then combined with proper time delay to generate two polarity-reversed doublet pulses. Second, two polarityreversed monocycle pulses are obtained based on XGM of the SOA and group delay of the single mode fiber (SMF). In the scheme, two polarity-reversed Gaussian pulses are generated due to XGM, and then the mixed signal is converted to a monocycle shape due to the group delay of the SMF. Finally, we present UWB doublet generation based on SPM. The monocycle pulse is generated from a dark return-to-zero (RZ) signal and converted to a doublet pulse by injecting an additional probe signal with the SMF transmission. For the first time and to the best of our knowledge, we report that the generated doublet pulses are transmitted over 5 km SMF by proper dispersion compensation without distortion. The configuration of our alloptical methods is compact and simple. The feasibility to implement the pulse shape modulation and pulse polarity modulation is discussed. [ABSTRACT FROM AUTHOR]
Copyright of Frontiers of Optoelectronics in China is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Titel: |
All-optical ultra-wideband pulse generation based on semiconductor optical amplifiers.
|
---|---|
Autor/in / Beteiligte Person: | Dong, Jianji ; Zhang, Xinliang ; Huang, Dexiu |
Link: | |
Zeitschrift: | Frontiers of Optoelectronics in China, Jg. 2 (2009-03-01), Heft 1, S. 40-49 |
Veröffentlichung: | 2009 |
Medientyp: | academicJournal |
ISSN: | 1674-4128 (print) |
DOI: | 10.1007/s12200-009-0007-y |
Sonstiges: |
|