Analysis of a λ/4-phase-shifted double phase-shift-controlled distributed feedback wavelength tunable optical filter

We have proposed a new lambda/4-phase-shifted double phase-shift-controlled distributed feedback wavelength tunable optical filter structure. Theoretical analysis based on the transfer matrix method reveals that this filter can achieved a wavelength tuning range of 28.3 and 34.3 A for the grating co...

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Veröffentlicht in:	IEEE journal of quantum electronics 1997-04, Vol.33 (4), p.556-561
Hauptverfasser:	GHAFOURI-SHIRAZ, H, LEW, S.-H, KOBAYASHI, S, KAMATA, I. N, YAMADA, K
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Filters, zone plates, and polarizers Fundamental areas of phenomenology (including applications) Optical elements, devices, and systems Optics Physics
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Beschreibung
Zusammenfassung:	We have proposed a new lambda/4-phase-shifted double phase-shift-controlled distributed feedback wavelength tunable optical filter structure. Theoretical analysis based on the transfer matrix method reveals that this filter can achieved a wavelength tuning range of 28.3 and 34.3 A for the grating coupling coefficients of 6 and 10 mm, respectively. The filter has almost constant peak transmissivity (gain) of more than 30 dB within its tuning range, and its side-mode suppression ratio (SMSR) ranges from 15 to 34.7 dB
ISSN:	0018-9197 1558-1713
DOI:	10.1109/3.563383