Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 29, Issue 20, Pages 1719-1722Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2017.2746818
Keywords
Lasers; laser stability; mode locked lasers
Funding
- National Natural Science Foundation of China [11434005, 11404211]
- National Instrumentation Program [2012YQ150092]
- Shanghai Science and Technology Commission [14JC1401600]
- China Postdoctoral Science Foundation [2015M581634]
- Hujiang Foundation of China [D15014]
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We present a method to discriminate stable mode-locked states of an all fiber erbium-doped laser based on nonlinear polarization rotation mechanism. The method has a balance between the accuracy and rapidness of the pulses discrimination. Mode-locked states are distinguished and confirmed by an amplitude discriminator, which reflects the repetition rate information of the pulses. An electronic polarization controller is used to precisely adjust the intracavity polarization states. The driving voltages of the electronic polarization controller at those mode-locked states are recorded as populations, and it is benefit to reduce the build-up time for mode locking. The populations are also recorded at operation temperature covering from 20 degrees C to 50 degrees C, which exhibits the repeatability and stability of the mode-locked states. Rapid self-tuning mode-locked fiber lasers could be achieved by the repeatability of the polarization settings under the stable temperature environment.
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