All-Optical Response of Semiconductor Ring Laser to Dual-Optical Injections

The all-optical response of a semiconductor ring laser (SRL) to two optical injections is characterized. Once the lasing direction is locked by one optical injection, the SRL direction of operation can be switched by another optical injection into the counterpropagating direction. The switching proc...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 20; no. 10; pp. 770 - 772
Main Authors Li, B., Memon, M.I., Mezosi, G., Yuan, G., Wang, Z., Sorel, M., Yu, S.
Format Journal Article
LanguageEnglish
Published New York IEEE 15.05.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Continuous-wave
digital hysteresis
Hysteresis
Hysteresis loops
Lasing
Nonlinear optics
Optical attenuators
Optical bistability
Optical wavelength conversion
Photonics
Power semiconductor switches
Quantum well devices
Regeneration
reshaping
Ring lasers
Semiconductor lasers
semiconductor ring laser (SRL)
Semiconductors
Switching
Telecommunication switching
Thresholds
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Summary:The all-optical response of a semiconductor ring laser (SRL) to two optical injections is characterized. Once the lasing direction is locked by one optical injection, the SRL direction of operation can be switched by another optical injection into the counterpropagating direction. The switching process manifests a typical bistable hysteresis loop, with its width and switching thresholds variable by the first injection power. Extremely sharp transition has been measured which confirms the potential of the SRL for all-optical regeneration applications.
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ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2008.921102