DOI: 10.32657/10356/39137
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Theory and experiment of MEMS tunable lasers

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Cited by 1 publication
(9 citation statements)
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“…However, the couple efficiency still can be improved significantly. By estimation, the lensless scheme with an external cavity length of 66 µm has a coupling efficiency of only 0.6%, while the curvedmirror scheme has about 9% [60,63]. It shows clearly that the curved-mirror enables the extension of the cavity length from several micrometers to several tens of micrometers while maintaining an acceptable coupling efficiency.…”
Section: Curved-mirror Schemementioning
confidence: 95%
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“…However, the couple efficiency still can be improved significantly. By estimation, the lensless scheme with an external cavity length of 66 µm has a coupling efficiency of only 0.6%, while the curvedmirror scheme has about 9% [60,63]. It shows clearly that the curved-mirror enables the extension of the cavity length from several micrometers to several tens of micrometers while maintaining an acceptable coupling efficiency.…”
Section: Curved-mirror Schemementioning
confidence: 95%
“…It is commonly observed in the experiment that the wavelength of peak mode experiences an alternation of continuous shift and mode hopping when the external cavity is lengthened or shortened continuously, at a period of half a wavelength [2,25,26,31,58]. If the amount of continuous shift is negligible in comparison to the FSR of the laser cavity, the output wavelength is dominated by mode hopping, i.e., discretely tuning as demonstrated in [27,63]. According to equation (3), the discrete tuning requires weak coupling efficiency and short cavity length, exactly opposite to those conditions for single mode lasers that target at large continuous shift.…”
Section: 13mentioning
confidence: 99%
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