Single longitudinal mode laser generation using coupled microfiber Mach–Zehnder interferometer filter
The fabrication and operation of a single longitudinal mode (SLM) laser using a compact coupled microfiber Mach-Zehnder interferometer (CM-MZI) in an erbium doped fiber (EDF) laser cavity is demonstrated. The CM-MZI is created by first fabricating an optical microfiber using the flame-brushing techn...
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| Main Authors: | , , , |
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| Format: | Article |
| Published: |
IOP Publishing
2018
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/22669/ https://doi.org/10.1088/1555-6611/aac1ae |
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| Institution: | Universiti Malaya |
| Summary: | The fabrication and operation of a single longitudinal mode (SLM) laser using a compact coupled microfiber Mach-Zehnder interferometer (CM-MZI) in an erbium doped fiber (EDF) laser cavity is demonstrated. The CM-MZI is created by first fabricating an optical microfiber using the flame-brushing technique before being cut and rejoined to form a half-loop, which is the basis for the CM-MZI structure. The CM-MZI is inserted into an EDF laser cavity; the filtering effect of the CM-MZI induces a stable SLM lasing output with a consistent 3 dB bandwidth of 0.02 nm at different a pumping power and signal-to-noise ratio of ∼50 dB. The output also exhibits minimal wavelength and power fluctuations of 0.02 nm and 0.15 dB, respectively, over a time period of 60 min. |
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