Relation of refractive index to ti-concentration in near-stoichiometric Ti : LiNbO3 waveguide
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 6557486 |
Pages (from-to) | 1653-1655 |
Journal / Publication | IEEE Photonics Technology Letters |
Volume | 25 |
Issue number | 17 |
Publication status | Published - 2013 |
Link(s)
Abstract
Multi-mode near-stoichiometric (NS) Ti:LiNbO3 planar waveguide was fabricated by co-work of Li-rich vapor transport equilibration and in-diffusion of Ti-film on an initially congruent LiNbO3 substrate. The Ti-concentration is profiled by secondary ion mass spectrometry. The refractive index profile is constructed from measured mode indices and correlated with the Ti-concentration profile. The results show that the index change and Ti-concentration follow an exponential relationship with a power index 0.75/0.49 for the ordinary/extraordinary ray. The relationship is different from that of either conventional congruent waveguide or homogeneously Ti-doped NS bulk material or NS waveguide fabricated by direct Ti-diffusion in an NS substrate. © 1989-2012 IEEE.
Research Area(s)
- Near-stoichiometric Ti:LiNbO3 waveguide, Ti-concentration, Ti-induced refractive index change
Citation Format(s)
Relation of refractive index to ti-concentration in near-stoichiometric Ti: LiNbO3 waveguide. / Zhang, De-Long; Han, Fang; Xu, Shi-Yu et al.
In: IEEE Photonics Technology Letters, Vol. 25, No. 17, 6557486, 2013, p. 1653-1655.
In: IEEE Photonics Technology Letters, Vol. 25, No. 17, 6557486, 2013, p. 1653-1655.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review