19 June 1998 Novel multiwavelength Er3+-doped fiber laser with double-pass Mach-Zehnder comb filter
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Proceedings Volume 3420, Optical Fiber Communication; (1998) https://doi.org/10.1117/12.312859
Event: Asia Pacific Symposium on Optoelectronics '98, 1998, Taipei, Taiwan
Abstract
Compact and stable multiwavelength lasers (MWL) are attractive for wavelength division multiplexing (WDM) system. Recently, multiwavelength Er3+-doped fiber lasers have been reported by several groups. In this paper, we proposed and demonstrate a novel fiber MWL by inserting a double-pass Mach-Zehnder (M-Z) interferometer as a comb filter in the fiber laser cavity. The two output ports of the fiber M-Z device are spliced with a piece of Er3+-doped fiber in between to provide the optical gain. One of the input ports is connected with a WDM fiber loop which totally reflects light at 1550 nm and transmits light at 980 nm, and the other input port is connected with a partially reflected fiber loop as the output reflector to the laser cavity. 10 lines lasing simultaneously are obtained when the Er3+-doped fiber is immersed into liquid nitrogen. By controlling the optical path difference between the two arms in the M-Z device, the lasing peak wavelengths and their spacings can be adjusted to meet the ITU recommendation for WDM applications.
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Honglin An, Honglin An, Hongdu Liu, Hongdu Liu, Xiang Zhi Lin, Xiang Zhi Lin, Edwin Y. B. Pun, Edwin Y. B. Pun, Po Sheun Chung, Po Sheun Chung, } "Novel multiwavelength Er3+-doped fiber laser with double-pass Mach-Zehnder comb filter", Proc. SPIE 3420, Optical Fiber Communication, (19 June 1998); doi: 10.1117/12.312859; https://doi.org/10.1117/12.312859
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