Low-Loss Channel Waveguides in MgO:LiNbO3 and LiTaO3 by Pyrophosphoric Acid Proton Exchange

Kazuhisa Yamamoto; Kiminori Mizuuchi; Tetsuo Taniuchi

doi:10.1143/JJAP.31.1059

Low-Loss Channel Waveguides in MgO:LiNbO₃ and LiTaO₃ by Pyrophosphoric Acid Proton Exchange

Kazuhisa Yamamoto, Kiminori Mizuuchi, Tetsuo Taniuchi

Advanced Interdisciplinary Research Division

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

The characteristics of proton-exchanged MgO-doped LiNbO₃ (MgO:LiNbO₃) and LiTaO₃ waveguides fabricated by the pyrophosphoric acid process are reported. Using this process, low-loss (0.4 dB/cm) channel waveguides in MgO:LiNbO₃ have been realized at 633 nm without annealing. The optical damage in MgO:LiNbO₃ waveguides at 441.6 nm wavelength is lower than that obtained in LiNbO₃. For LiTaO₃, by annealing, low-loss (0.3 dB/cm) channel waveguides can be fabricated by pyrophosphoric acid proton exchange. No optical damage was observed in the LiTaO₃ waveguides even when the incident power was above 1 mW at 442 nm.

Original language	English
Pages (from-to)	1059-1064
Number of pages	6
Journal	Japanese journal of applied physics
Volume	31
Issue number	4 R
DOIs	https://doi.org/10.1143/JJAP.31.1059
Publication status	Published - 1992 Apr

Keywords

LiTaO
MgO:LiNbO
Proton exchange
Pyrophosphoric acid
Waveguide

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.31.1059

Fingerprint Dive into the research topics of 'Low-Loss Channel Waveguides in MgO:LiNbO<sub>3</sub> and LiTaO<sub>3</sub> by Pyrophosphoric Acid Proton Exchange'. Together they form a unique fingerprint.

Cite this

@article{4d556f6391ff4fa099fae1136a4bef28,

title = "Low-Loss Channel Waveguides in MgO:LiNbO3 and LiTaO3 by Pyrophosphoric Acid Proton Exchange",

abstract = "The characteristics of proton-exchanged MgO-doped LiNbO3 (MgO:LiNbO3) and LiTaO3 waveguides fabricated by the pyrophosphoric acid process are reported. Using this process, low-loss (0.4 dB/cm) channel waveguides in MgO:LiNbO3 have been realized at 633 nm without annealing. The optical damage in MgO:LiNbO3 waveguides at 441.6 nm wavelength is lower than that obtained in LiNbO3. For LiTaO3, by annealing, low-loss (0.3 dB/cm) channel waveguides can be fabricated by pyrophosphoric acid proton exchange. No optical damage was observed in the LiTaO3 waveguides even when the incident power was above 1 mW at 442 nm.",

keywords = "LiTaO, MgO:LiNbO, Proton exchange, Pyrophosphoric acid, Waveguide",

author = "Kazuhisa Yamamoto and Kiminori Mizuuchi and Tetsuo Taniuchi",

year = "1992",

month = apr,

doi = "10.1143/JJAP.31.1059",

language = "English",

volume = "31",

pages = "1059--1064",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "4 R",

}

TY - JOUR

T1 - Low-Loss Channel Waveguides in MgO:LiNbO3 and LiTaO3 by Pyrophosphoric Acid Proton Exchange

AU - Yamamoto, Kazuhisa

AU - Mizuuchi, Kiminori

AU - Taniuchi, Tetsuo

PY - 1992/4

Y1 - 1992/4

N2 - The characteristics of proton-exchanged MgO-doped LiNbO3 (MgO:LiNbO3) and LiTaO3 waveguides fabricated by the pyrophosphoric acid process are reported. Using this process, low-loss (0.4 dB/cm) channel waveguides in MgO:LiNbO3 have been realized at 633 nm without annealing. The optical damage in MgO:LiNbO3 waveguides at 441.6 nm wavelength is lower than that obtained in LiNbO3. For LiTaO3, by annealing, low-loss (0.3 dB/cm) channel waveguides can be fabricated by pyrophosphoric acid proton exchange. No optical damage was observed in the LiTaO3 waveguides even when the incident power was above 1 mW at 442 nm.

AB - The characteristics of proton-exchanged MgO-doped LiNbO3 (MgO:LiNbO3) and LiTaO3 waveguides fabricated by the pyrophosphoric acid process are reported. Using this process, low-loss (0.4 dB/cm) channel waveguides in MgO:LiNbO3 have been realized at 633 nm without annealing. The optical damage in MgO:LiNbO3 waveguides at 441.6 nm wavelength is lower than that obtained in LiNbO3. For LiTaO3, by annealing, low-loss (0.3 dB/cm) channel waveguides can be fabricated by pyrophosphoric acid proton exchange. No optical damage was observed in the LiTaO3 waveguides even when the incident power was above 1 mW at 442 nm.

KW - LiTaO

KW - MgO:LiNbO

KW - Proton exchange

KW - Pyrophosphoric acid

KW - Waveguide

UR - http://www.scopus.com/inward/record.url?scp=0026852355&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026852355&partnerID=8YFLogxK

U2 - 10.1143/JJAP.31.1059

DO - 10.1143/JJAP.31.1059

M3 - Article

AN - SCOPUS:0026852355

VL - 31

SP - 1059

EP - 1064

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 4 R

ER -