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Broadly Tunable SOA-Based Active Mode-Locked Fibre Ring aser by Forward Injection Optical Pulse |
| YAN Shuang-Yi1,2, ZHANG Jian Guo3, ZHAO Wei1, LU Hong-Qiang1,2, WANG Wei-Qiang1 |
| 1State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 7101192Graduate School of Chinese Academy of Sciences, Beijing 1000393Department of Electrical, Computer and Communications Engineering, London South Bank University, 103 Borough Road, London SE1 0AA, UK |
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| Cite this article: |
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YAN Shuang-Yi, ZHANG Jian Guo, ZHAO Wei et al 2008 Chin. Phys. Lett. 25 2876-2879 |
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Abstract We present a broadly tunable active mode-locked fibre ring laser based on a semiconductor optical amplifier (SOA), with forward injection optical pulses. The laser can generate pulse sequence with pulsewidth about 12ps and high output power up to 8.56dBm at 2.5GHz stably. Incorporated with a wavelength-tunable optical bandpass filter, the pulse laser can operate with a broad wavelength tunable span up to 37nm with almost constant pulsewidth. A detailed experimental analysis is also carried out to investigate the relationship between the power of the internal cavity and the pulsewidth of the output pulse sequence. The experimental configuration of the pulse laser is very simple and easy to setup with no polarization-sensitive components.
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| Keywords:
42.55.Wd
42.55.Px
42.60.Fc
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Received: 02 April 2008
Published: 25 July 2008
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| PACS: |
42.55.Wd
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(Fiber lasers)
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42.55.Px
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(Semiconductor lasers; laser diodes)
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42.60.Fc
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(Modulation, tuning, and mode locking)
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