OSA's Digital Library

Optics Letters

Optics Letters


  • Vol. 12, Iss. 7 — Jul. 1, 1987
  • pp: 531–533

Direct-current bias stable Ti:LiNbO3 TE-TM mode converters produced by magnesium postdiffusion

N. A. Sanford and W. C. Robinson  »View Author Affiliations

Optics Letters, Vol. 12, Issue 7, pp. 531-533 (1987)

View Full Text Article

Enhanced HTML    Acrobat PDF (323 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Depression of the surface index of TiLiNbO3 channel waveguides by secondary diffusion of MgO forms a buffer layer that optically isolates the guided modes from attenuation caused by electrodes placed over the guides. For x-cut, z-propagating mode-conversion devices, we find high stability to optical drift when a dc voltage as high as 60 V is applied to electrodes (typical gap of 5 μm) to establish bias operating points. Photoconductivity is found to limit the long-term stability. Devices operating at 0.633-μm wavelength generally suffer significant drift in their mode-conversion efficiency when 100 μW or more of throughput power is present and a bias of 14 V is used. 10-μW throughput at the same wavelength is found to be stable over an 8-h period. At 0.8-μm wavelength, bias voltages as high as 60 V may be used for stable operation even at 100-μW optical throughput.

© 1987 Optical Society of America

Original Manuscript: January 22, 1987
Manuscript Accepted: March 27, 1987
Published: July 1, 1987

N. A. Sanford and W. C. Robinson, "Direct-current bias stable Ti:LiNbO3 TE-TM mode converters produced by magnesium postdiffusion," Opt. Lett. 12, 531-533 (1987)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. J. Noda, M. Fukuma, S. Saito, J. Appl. Phys. 49, 3150 (1978). [CrossRef]
  2. K. Komatsu, M. Kondo, Y. Ohta, in Digest of Topical Meeting on Integrated and Guided Wave Optics (Optical Society of America, Washington, D.C., 1986), post-deadline paper 2.
  3. S. Thaniyavarn, Opt. Lett. 11, 39 (1986). [CrossRef] [PubMed]
  4. N. A. Sanford, W. C. Robinson, in Proceedings of the IEEE International Conference on the Applications of Ferroelectrics (Institute of Electrical and Electronics Engineers, New York, 1986), paper 1A-2.
  5. For a comprehensive review of the proton-exchange process the reader should consultS. M. Al-Shukri, J. Duffy, R. M. De La Rue, M. N. Armenise, C. Canali, A. Carnera, Proc. Soc. Photo-Opt. Instrum. Eng. 578, 2 (1985).
  6. N. A. Sanford, W. C. Robinson, Opt. Lett. 10, 190 (1985). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4 Fig. 5

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited